diff --git a/deploy/sql/头程数据库统一增量-MySQL8.sql b/deploy/sql/头程数据库统一增量-MySQL8.sql
index 108460225..e2020fb45 100644
--- a/deploy/sql/头程数据库统一增量-MySQL8.sql
+++ b/deploy/sql/头程数据库统一增量-MySQL8.sql
@@ -7,6 +7,73 @@
 -- 使用 MySQL Client、Workbench、DataGrip 或 Navicat 的“运行脚本”完整执行，客户端必须支持 DELIMITER。
 SET NAMES utf8mb4;
 SET SESSION sql_mode = 'ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION';
+-- 来源：warehouse\src\main\resources\db\phase3-pallet-location-transfer-idempotency.sql
+CREATE DATABASE IF NOT EXISTS baiyue_warehouse
+  DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci;
+USE baiyue_warehouse;
+
+CREATE TABLE IF NOT EXISTS wh_pallet_location_transfer_operation (
+  id BIGINT UNSIGNED NOT NULL COMMENT '调拨幂等操作ID',
+  tenant_id BIGINT UNSIGNED NOT NULL COMMENT '仓储公共资源域，固定为0',
+  source_service VARCHAR(40) NOT NULL COMMENT '来源服务',
+  source_business_id BIGINT UNSIGNED NOT NULL COMMENT '来源入仓单ID',
+  target_business_id BIGINT UNSIGNED NOT NULL COMMENT '目标子入仓单ID',
+  idempotency_key VARCHAR(128) NOT NULL COMMENT '调用方幂等键',
+  request_hash CHAR(64) NOT NULL COMMENT '规范化请求SHA-256摘要',
+  operation_status VARCHAR(20) NOT NULL DEFAULT 'PROCESSING' COMMENT 'PROCESSING处理中、COMPLETED已完成',
+  response_snapshot JSON NULL COMMENT '完成后的调拨结果快照，用于重复请求重放',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '创建时间',
+  completed_at DATETIME(3) NULL COMMENT '完成时间',
+  PRIMARY KEY (id),
+  UNIQUE KEY uk_pallet_location_transfer_idempotency
+    (tenant_id, source_service, source_business_id, target_business_id, idempotency_key),
+  KEY idx_pallet_location_transfer_source (tenant_id, source_service, source_business_id, operation_status)
+) ENGINE=InnoDB COMMENT='托盘库位归属转移的持久化幂等操作记录';
+
+-- 来源：warehouse\src\main\resources\db\phase3-pallet-location-release-idempotency.sql
+CREATE TABLE IF NOT EXISTS wh_pallet_location_release_operation (
+  id BIGINT UNSIGNED NOT NULL COMMENT '精确释放幂等操作ID',
+  tenant_id BIGINT UNSIGNED NOT NULL COMMENT '仓储公共资源作用域，固定为0',
+  source_service VARCHAR(40) NOT NULL COMMENT '来源服务',
+  business_id BIGINT UNSIGNED NOT NULL COMMENT '入库单ID',
+  idempotency_key VARCHAR(128) NOT NULL COMMENT '调用方幂等键',
+  request_hash CHAR(64) NOT NULL COMMENT '规范化请求SHA-256摘要',
+  operation_status VARCHAR(20) NOT NULL DEFAULT 'PROCESSING' COMMENT 'PROCESSING处理中，COMPLETED已完成',
+  response_snapshot JSON NULL COMMENT '完成后的精确释放结果快照，用于重复请求重放',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '创建时间',
+  completed_at DATETIME(3) NULL COMMENT '完成时间',
+  PRIMARY KEY (id),
+  UNIQUE KEY uk_pallet_location_release_idempotency
+    (tenant_id, source_service, business_id, idempotency_key),
+  KEY idx_pallet_location_release_business (tenant_id, source_service, business_id, operation_status)
+) ENGINE=InnoDB COMMENT='PDA已拣满托盘库位精确释放的持久化幂等操作记录';
+
+-- 来源：warehouse\src\main\resources\db\phase3-pallet-location-settlement-idempotency.sql
+CREATE TABLE IF NOT EXISTS wh_pallet_location_settlement_operation (
+  id BIGINT UNSIGNED NOT NULL COMMENT 'PDA资源结算幂等操作ID',
+  tenant_id BIGINT UNSIGNED NOT NULL COMMENT '仓储公共资源作用域，固定为0',
+  source_service VARCHAR(40) NOT NULL COMMENT '来源服务',
+  source_business_id BIGINT UNSIGNED NOT NULL COMMENT '主入库单ID',
+  target_business_id BIGINT UNSIGNED NOT NULL COMMENT '二级子入库单ID；全拣完成时为0，仅作审计快照',
+  idempotency_key VARCHAR(128) NOT NULL COMMENT 'PDA结算幂等键',
+  request_hash CHAR(64) NOT NULL COMMENT '规范化请求SHA-256摘要',
+  operation_status VARCHAR(20) NOT NULL DEFAULT 'PROCESSING' COMMENT 'PROCESSING处理中，COMPLETED已完成',
+  response_snapshot JSON NULL COMMENT '完成后的释放和转移组合结果快照，用于重复请求重放',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '创建时间',
+  completed_at DATETIME(3) NULL COMMENT '完成时间',
+  PRIMARY KEY (id),
+  UNIQUE KEY uk_pallet_location_settlement_idempotency
+    (tenant_id, source_service, source_business_id, idempotency_key),
+  KEY idx_pallet_location_settlement_source
+    (tenant_id, source_service, source_business_id, operation_status)
+) ENGINE=InnoDB COMMENT='PDA拣货资源原子结算的持久化幂等操作记录';
+
+-- 兼容已执行过旧脚本的测试库：目标子单不属于幂等键，同一来源单据和幂等键只能对应一条请求。
+ALTER TABLE wh_pallet_location_settlement_operation
+  DROP INDEX uk_pallet_location_settlement_idempotency,
+  ADD UNIQUE KEY uk_pallet_location_settlement_idempotency
+    (tenant_id, source_service, source_business_id, idempotency_key);
+
 SELECT VERSION() AS mysql_version, 'START' AS unified_migration_status;
 
 -- ============================================================================
@@ -8632,6 +8699,14 @@ DELIMITER ;
 CALL assert_phase3_final_schema();
 DROP PROCEDURE IF EXISTS assert_phase3_final_schema;
 
--- WAIT_SPLIT 是二期当前有效终点；统一迁移不得改写主表或历史状态。
+-- 二、三期对外统一使用 INBOUNDED；历史 WAIT_SPLIT 仅由查询适配为 INBOUNDED，统一迁移不改写主表或历史状态。
 SELECT 'PASS' AS migration_status,
        '统一增量全部执行完成；箱号映射、单箱测量、三期订舱、拖车预约、出仓、报关、船期、装柜模型桥接、PDA收敛、费用、公共资源及可靠审计结构校验通过' AS message;
+
+-- PDA 部分拣货释放策略：NULL/AUTO 按比例释放，MANUAL + [] 表示人工明确不释放。
+USE baiyue_firstleg;
+ALTER TABLE fl_loading_pick_item
+  ADD COLUMN IF NOT EXISTS release_mode VARCHAR(10) NULL COMMENT 'AUTO按比例释放，MANUAL按人工选择释放' AFTER item_status,
+  ADD COLUMN IF NOT EXISTS release_location_ids JSON NULL COMMENT '人工选择释放库位ID；空数组表示明确释放0个' AFTER release_mode;
+ALTER TABLE fl_inbound_pallet_allocation
+  ADD COLUMN IF NOT EXISTS reservation_id BIGINT UNSIGNED NULL COMMENT '仓库预占资源唯一ID，A0共享场景用于区分托盘' AFTER location_code;
diff --git a/firstleg/AGENTS.md b/firstleg/AGENTS.md
index 35cb2fb8a..21e68af56 100644
--- a/firstleg/AGENTS.md
+++ b/firstleg/AGENTS.md
@@ -26,6 +26,15 @@
 - 第三方回传必须签名、时间窗、防重放、请求哈希，并绑定订单货物和 File 证据；不得信任外部客户字段。
 - 测量审核→计费确认→费用发布→入库完成不得跳过门禁；状态或 DTO 变更时逐个检查 Order/Warehouse/File/Integration 消费者。
 
+## 三期装柜与 PDA 资源结算
+
+- 智能装柜候选只能按同一国内中转仓合柜；推荐顺序按入库时间先进先出。装柜计划状态为 `EDITING -> LOADING -> COMPLETED`，PDA 全部明细处理完成后自动完成。
+- PDA 部分拣货生成二级子入库单时，数量必须守恒：`已拣数量 + 子单数量 = 拣货前主单可用数量`。子单只允许一层，不能继续拆分。
+- `releaseMode=AUTO` 时，释放资源数为 `ceil(实际拣货箱数 × 原资源数 / 原可用箱数)`；`MANUAL` 按 `locationIds` 选择，空数组表示明确释放 0 个。未传模式时，`locationIds=null` 兼容为 AUTO。
+- 头程快照必须保存仓库 `reservation_id`。A0 是共享临时库位，多个托盘可具有相同 `location_id`，跨服务结算、转移、释放必须使用 `reservationId`，不得把 `locationId` 当作唯一资源标识。
+- 部分拣货资源结算必须调用 Warehouse 的 `/internal/warehouse/v1/pallet-locations/settlements` 原子接口；禁止拆成独立释放和转移调用。全部释放但子单仍有数量时，由仓库服务重新选择同仓普通库位，不足才落 A0。
+- 数据库字段变更同时维护 `src/main/resources/db/phase3-pda-release-allocation-migration.sql` 和 `../deploy/sql/头程数据库统一增量-MySQL8.sql`。
+
 ## 分期导航
 
 - 一期：履约任务与分配；先读 `../../docs/一期/README.md`。
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/client/WarehousePalletLocationClient.java b/firstleg/src/main/java/com/baiyue/firstleg/client/WarehousePalletLocationClient.java
index eee112077..ef0f51e13 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/client/WarehousePalletLocationClient.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/client/WarehousePalletLocationClient.java
@@ -30,6 +30,14 @@ public interface WarehousePalletLocationClient {
         @RequestHeader("X-Internal-Service-Token") String token,
         @RequestBody SelectiveReleaseRequest request);
 
+    @PostMapping("/transfer")
+    ApiResponse<List<TransferResult>> transfer(@RequestHeader("X-Internal-Service-Token") String token,
+                                                @RequestBody TransferRequest request);
+
+    @PostMapping("/settlements")
+    ApiResponse<SettlementResult> settle(@RequestHeader("X-Internal-Service-Token") String token,
+                                         @RequestBody SettlementRequest request);
+
     record ReserveRequest(long tenantId, long warehouseId, String sourceService, long businessId,
                           String inboundCode, String idempotencyKey, long operatorId,
                           BigDecimal totalVolumeCbm, BigDecimal palletCapacityCbm, String palletType,
@@ -39,8 +47,8 @@ public interface WarehousePalletLocationClient {
     record ReleaseRequest(long tenantId, String sourceService, long businessId, long operatorId,
                           String reason) {}
     record SelectiveReleaseRequest(long tenantId, String sourceService, long businessId,
-                                   long operatorId, String reason, int totalPackageCount,
-                                   List<Long> locationIds, Integer releaseLocationCount) {}
+                                   String idempotencyKey, long operatorId, String reason,
+                                   List<Long> locationIds) {}
     record AllocationResult(long reservationId, String reservationNo, int allocationNo,
                             long palletId, String palletCode, long locationId, String locationCode,
                             BigDecimal allocatedVolumeCbm, String state) {}
@@ -49,5 +57,21 @@ public interface WarehousePalletLocationClient {
                           long locationId, String locationCode, String state) {}
     record SelectiveReleaseResult(long reservationId, long occupancyId, int allocationNo,
                                   long palletId, long locationId, String locationCode,
-                                  int releasedPackageCount) {}
+                                  int allocatedPackageCount) {}
+    record TransferItem(long locationId, int remainingPackageCount) {}
+    record TransferRequest(long tenantId, String sourceService, long sourceBusinessId,
+                           long targetBusinessId, String targetInboundCode, String idempotencyKey,
+                           long operatorId, List<TransferItem> items) {}
+    record TransferResult(long reservationId, String reservationNo, long occupancyId, int allocationNo,
+                          long warehouseResourceTenantId, long warehouseId, long palletId,
+                          String palletCode, BigDecimal palletCapacityCbm, long locationId,
+                          String locationCode, BigDecimal allocatedVolumeCbm,
+                          int remainingPackageCount, String state) {}
+    record SettlementTransferItem(long reservationId, int remainingPackageCount) {}
+    record SettlementRequest(long warehouseId, String sourceService, long sourceBusinessId,
+                             long targetBusinessId, int sourcePackageCount, int targetPackageCount,
+                             String targetInboundCode, String idempotencyKey, long operatorId,
+                             String operatorName, String requestId, List<Long> releasedReservationIds,
+                             List<SettlementTransferItem> remainingItems) {}
+    record SettlementResult(List<SelectiveReleaseResult> released, List<TransferResult> transferred) {}
 }
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/controller/MerchantInboundBillingController.java b/firstleg/src/main/java/com/baiyue/firstleg/controller/MerchantInboundBillingController.java
index 854814203..3e0176848 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/controller/MerchantInboundBillingController.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/controller/MerchantInboundBillingController.java
@@ -29,7 +29,7 @@ public class MerchantInboundBillingController {
     @GetMapping("/{orderId}/inbound-billing")
     @PreAuthorize("hasAuthority('merchant:order:view')")
     @Operation(summary = "查询订单入库结果和最新费用",
-        description = "客户只读查看已达到 WAIT_SPLIT + APPROVED + CONFIRMED 的二期费用，不需要确认费用。")
+        description = "客户只读查看已达到 INBOUNDED + APPROVED + CONFIRMED 的二期费用，不需要确认费用。")
     public ApiResponse<MerchantInboundBillingResponse> find(
         @AuthenticationPrincipal AuthenticatedUser user, @PathVariable long orderId) {
         return ApiResponse.success(service.find(FirstlegScopeGuard.merchant(user), orderId));
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/domain/InboundProcessStatus.java b/firstleg/src/main/java/com/baiyue/firstleg/domain/InboundProcessStatus.java
index 9309bc9b5..f5414da4b 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/domain/InboundProcessStatus.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/domain/InboundProcessStatus.java
@@ -20,7 +20,10 @@ public final class InboundProcessStatus {
     public static final String INBOUNDING = "INBOUNDING";
     /** 已入库完成，费用已发送给客户。 */
     public static final String INBOUNDED = "INBOUNDED";
-    /** 二期处理完成，等待三期分柜。 */
+    /**
+     * 历史兼容状态。二、三期已统一使用 {@link #INBOUNDED}，不得再写入或对外返回此值。
+     */
+    @Deprecated(forRemoval = false)
     public static final String WAIT_SPLIT = "WAIT_SPLIT";
     /** 已进入装柜作业，PDA 可执行拣货。 */
     public static final String LOADING = "LOADING";
@@ -33,7 +36,7 @@ public final class InboundProcessStatus {
 
     public static final Set<String> VALUES = Set.of(
         WAIT_MEASURE, MEASURING, MEASURE_PENDING, MEASURE_REJECTED,
-        WAIT_PRICING, FEE_CONFIRMING, INBOUNDING, INBOUNDED, WAIT_SPLIT,
+        WAIT_PRICING, FEE_CONFIRMING, INBOUNDING, INBOUNDED,
         LOADING, LOADED, DELIVERED, VOIDED
     );
 
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/dto/LoadingPickDtos.java b/firstleg/src/main/java/com/baiyue/firstleg/dto/LoadingPickDtos.java
index bfa426126..6f5f1619c 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/dto/LoadingPickDtos.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/dto/LoadingPickDtos.java
@@ -4,6 +4,7 @@ import com.fasterxml.jackson.annotation.JsonAlias;
 import jakarta.validation.constraints.Min;
 import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Pattern;
 import jakarta.validation.constraints.Size;
 
 import java.util.List;
@@ -17,20 +18,30 @@ public final class LoadingPickDtos {
     public record PickRequest(
         @NotNull @Min(1) Long warehouseId,
         @NotNull @Min(1) Integer pickedPackageCount,
+        @Pattern(regexp = "AUTO|MANUAL") String releaseMode,
         @JsonAlias("reservationIds") List<@Min(1) Long> locationIds,
         @NotNull @Min(0) Integer version,
         @NotBlank @Size(max = 128) String operationId
     ) {
+        public PickRequest(Long warehouseId, Integer pickedPackageCount, List<Long> locationIds,
+                           Integer version, String operationId) {
+            this(warehouseId, pickedPackageCount, null, locationIds, version, operationId);
+        }
     }
 
     /** 部分拣货为该 PDA 明细的最终实际拣出箱数，不是增量。 */
     public record PartialPickRequest(
         @NotNull @Min(1) Long warehouseId,
         @NotNull @Min(1) Integer finalPickedPackageCount,
+        @Pattern(regexp = "AUTO|MANUAL") String releaseMode,
         @JsonAlias("reservationIds") List<@Min(1) Long> locationIds,
         @NotNull @Min(0) Integer version,
         @NotBlank @Size(max = 128) String operationId
     ) {
+        public PartialPickRequest(Long warehouseId, Integer finalPickedPackageCount, List<Long> locationIds,
+                                  Integer version, String operationId) {
+            this(warehouseId, finalPickedPackageCount, null, locationIds, version, operationId);
+        }
     }
 
     /** 跳拣只能发生在尚未拣出任何箱数的 PDA 明细上。 */
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/dto/UnifiedInboundQuery.java b/firstleg/src/main/java/com/baiyue/firstleg/dto/UnifiedInboundQuery.java
index 003165aa6..5b77f89be 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/dto/UnifiedInboundQuery.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/dto/UnifiedInboundQuery.java
@@ -14,7 +14,7 @@ public record UnifiedInboundQuery(
     Long tenantId,
     @Size(max = 64) String keyword,
     @Size(max = 64) String orderNo,
-    @Schema(allowableValues = {"PENDING_REVIEW", "WAIT_MEASURE", "INBOUNDED", "WAIT_SPLIT",
+    @Schema(allowableValues = {"PENDING_REVIEW", "WAIT_MEASURE", "INBOUNDED",
         "LOADING", "LOADED", "DELIVERED"})
     @Size(max = 32) String mainStatus,
     Long customerId,
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/entity/InboundPalletAllocationEntity.java b/firstleg/src/main/java/com/baiyue/firstleg/entity/InboundPalletAllocationEntity.java
index abb1e4afc..58c636deb 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/entity/InboundPalletAllocationEntity.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/entity/InboundPalletAllocationEntity.java
@@ -29,6 +29,8 @@ public class InboundPalletAllocationEntity {
     private Integer pickedPackageCount;
     private Long locationId;
     private String locationCode;
+    /** 仓库资源唯一预占标识；A0 多托盘场景不能使用 locationId 作为唯一标识。 */
+    private Long reservationId;
     private String reservationNo;
     private String allocationStatus;
     private LocalDateTime createdAt;
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/entity/LoadingPickItemEntity.java b/firstleg/src/main/java/com/baiyue/firstleg/entity/LoadingPickItemEntity.java
index 1c8349f7b..b271e9f78 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/entity/LoadingPickItemEntity.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/entity/LoadingPickItemEntity.java
@@ -23,6 +23,10 @@ public class LoadingPickItemEntity {
     private Integer plannedPackageCount;
     private Integer pickedPackageCount;
     private String itemStatus;
+    /** AUTO 按比例释放，MANUAL 按指定库位释放。 */
+    private String releaseMode;
+    /** 人工选择的库位 ID，JSON 数组；空数组表示明确不释放。 */
+    private String releaseLocationIds;
     @Version
     private Integer version;
     private LocalDateTime createdAt;
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/mapper/InboundPalletAllocationMapper.java b/firstleg/src/main/java/com/baiyue/firstleg/mapper/InboundPalletAllocationMapper.java
index 52506815a..0bb0299f5 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/mapper/InboundPalletAllocationMapper.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/mapper/InboundPalletAllocationMapper.java
@@ -37,4 +37,22 @@ public interface InboundPalletAllocationMapper extends BaseMapper<InboundPalletA
         """)
     int consume(@Param("id") long id, @Param("tenantId") long tenantId,
                 @Param("inboundId") long inboundId, @Param("count") int count);
+
+    @Update("""
+        UPDATE fl_inbound_pallet_allocation
+           SET allocation_status = 'TRANSFERRED', updated_at = CURRENT_TIMESTAMP(3)
+         WHERE id = #{id} AND tenant_id = #{tenantId} AND inbound_id = #{inboundId}
+           AND allocation_status = 'CONFIRMED' AND picked_package_count < allocated_package_count
+        """)
+    int markTransferred(@Param("id") long id, @Param("tenantId") long tenantId,
+                        @Param("inboundId") long inboundId);
+
+    @Update("""
+        UPDATE fl_inbound_pallet_allocation
+           SET allocation_status = 'RELEASED', updated_at = CURRENT_TIMESTAMP(3)
+         WHERE tenant_id = #{tenantId} AND inbound_id = #{inboundId}
+           AND reservation_id = #{reservationId} AND allocation_status = 'CONFIRMED'
+        """)
+    int markReleased(@Param("tenantId") long tenantId, @Param("inboundId") long inboundId,
+                     @Param("reservationId") long reservationId);
 }
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/mapper/InboundSplitSettlementMapper.java b/firstleg/src/main/java/com/baiyue/firstleg/mapper/InboundSplitSettlementMapper.java
index 249e474e5..891670d5c 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/mapper/InboundSplitSettlementMapper.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/mapper/InboundSplitSettlementMapper.java
@@ -2,7 +2,9 @@ package com.baiyue.firstleg.mapper;
 
 import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Insert;
 import org.apache.ibatis.annotations.Select;
+import org.apache.ibatis.annotations.Update;
 
 import java.util.List;
 
@@ -11,12 +13,13 @@ import java.util.List;
 public interface InboundSplitSettlementMapper {
     @Select("""
         SELECT id, tenant_id AS tenantId, inbound_code AS inboundCode, inbound_role AS inboundRole,
-               process_status AS processStatus, version
+               process_status AS processStatus, total_package_count AS totalPackageCount,
+               package_count AS packageCount, version
           FROM fl_inbound_order
-         WHERE tenant_id = #{accountId} AND id = #{inboundId} AND deleted = 0
+         WHERE id = #{inboundId} AND deleted = 0
          FOR UPDATE
         """)
-    ParentRow lockParent(@Param("accountId") long accountId, @Param("inboundId") long inboundId);
+    ParentRow lockParent(@Param("inboundId") long inboundId);
 
     @Select("""
         SELECT id
@@ -28,6 +31,179 @@ public interface InboundSplitSettlementMapper {
         """)
     Long childId(@Param("accountId") long accountId, @Param("parentInboundId") long parentInboundId);
 
+    @Insert("""
+        INSERT INTO fl_inbound_order (
+          id, tenant_id, task_id, order_id, order_no, inbound_code, process_status,
+          order_status_snapshot, measure_review_status, fee_status, fee_review_status, notification_status,
+          expected_arrival_at, customer_id, customer_name, company_id, company_name,
+          warehouse_id, warehouse_name, delivery_warehouse_id, delivery_warehouse_name,
+          business_type, channel_code, channel_name, carrier_id, carrier_name, tax_mode,
+          pricing_tax_mode, container_mode, customs_inspection, destination_type,
+          destination_warehouse_id, destination_code, destination_name, hold_flag,
+          current_hold_reason, total_package_count, actual_gross_weight_kg,
+          chargeable_weight_kg, actual_volume_cbm, chargeable_volume_cbm, pallet_count,
+          volume_weight_kg, actual_net_weight_kg, measure_completed_at, inbounded_at,
+          express_company_code, express_company_name, express_tracking_no, public_remark,
+          created_by, created_by_name, created_at, updated_by, updated_at, deleted, version,
+          inbound_role, parent_inbound_id, root_inbound_id, split_sequence, split_status, package_count
+        )
+        SELECT #{childId}, tenant_id, task_id, order_id, order_no, #{childInboundCode}, 'INBOUNDED',
+          order_status_snapshot, 'APPROVED', fee_status, fee_review_status, notification_status,
+          expected_arrival_at, customer_id, customer_name, company_id, company_name,
+          warehouse_id, warehouse_name, delivery_warehouse_id, delivery_warehouse_name,
+          business_type, channel_code, channel_name, carrier_id, carrier_name, tax_mode,
+          pricing_tax_mode, container_mode, customs_inspection, destination_type,
+          destination_warehouse_id, destination_code, destination_name, hold_flag,
+          current_hold_reason, #{packageCount}, actual_gross_weight_kg,
+          chargeable_weight_kg, actual_volume_cbm, chargeable_volume_cbm, pallet_count,
+          volume_weight_kg, actual_net_weight_kg, measure_completed_at, inbounded_at,
+          express_company_code, express_company_name, express_tracking_no, public_remark,
+          #{operatorId}, #{operatorName}, CURRENT_TIMESTAMP(3), #{operatorId}, CURRENT_TIMESTAMP(3), 0, 0,
+          'CHILD', id, id, 1, 'NOT_SPLIT', #{packageCount}
+        FROM fl_inbound_order
+        WHERE id = #{parentInboundId} AND tenant_id = #{accountId} AND deleted = 0
+        """)
+    int cloneChild(@Param("accountId") long accountId, @Param("parentInboundId") long parentInboundId,
+                   @Param("childId") long childId, @Param("childInboundCode") String childInboundCode,
+                   @Param("packageCount") int packageCount, @Param("operatorId") long operatorId,
+                   @Param("operatorName") String operatorName);
+
+    @Insert("""
+        INSERT INTO fl_inbound_split_batch
+          (id, tenant_id, parent_inbound_id, operation_id, idempotency_key, expected_parent_version,
+           package_count, status, remark, created_by, created_by_name, created_at, version)
+        VALUES
+          (#{batchId}, #{accountId}, #{parentInboundId}, #{operationId}, #{idempotencyKey},
+           #{expectedParentVersion}, #{packageCount}, 'PREPARED', #{remark}, #{operatorId},
+           #{operatorName}, CURRENT_TIMESTAMP(3), 0)
+        """)
+    int insertBatch(@Param("batchId") long batchId, @Param("accountId") long accountId,
+                    @Param("parentInboundId") long parentInboundId, @Param("operationId") String operationId,
+                    @Param("idempotencyKey") String idempotencyKey,
+                    @Param("expectedParentVersion") int expectedParentVersion,
+                    @Param("packageCount") int packageCount, @Param("remark") String remark,
+                    @Param("operatorId") long operatorId, @Param("operatorName") String operatorName);
+
+    @Insert("""
+        INSERT INTO fl_inbound_split_item
+          (id, tenant_id, split_batch_id, parent_inbound_id, child_inbound_id, line_no,
+           source_inbound_detail_id, source_measurement_id, source_measurement_item_id, package_count, created_at)
+        VALUES
+          (#{splitItemId}, #{accountId}, #{batchId}, #{parentInboundId}, #{childInboundId}, #{lineNo},
+           #{inboundDetailId}, #{measurementId}, #{measurementItemId}, #{packageCount}, CURRENT_TIMESTAMP(3))
+        """)
+    int insertSplitItem(@Param("splitItemId") long splitItemId, @Param("accountId") long accountId,
+                        @Param("batchId") long batchId, @Param("parentInboundId") long parentInboundId,
+                        @Param("childInboundId") long childInboundId, @Param("lineNo") int lineNo,
+                        @Param("inboundDetailId") long inboundDetailId, @Param("measurementId") long measurementId,
+                        @Param("measurementItemId") long measurementItemId,
+                        @Param("packageCount") int packageCount);
+
+    @Insert("""
+        INSERT INTO fl_inbound_measurement
+          (id, tenant_id, inbound_id, split_batch_id, source_measurement_id, source_type, source_code,
+           external_event_no, external_request_hash, device_code, warehouse_code, measured_at, status,
+           raw_payload_json, original_document_no, original_gross_weight_kg, original_volume_cbm,
+           actual_goods_name, total_package_count, total_volume_raw_cbm, total_volume_cbm,
+           volume_weight_kg, created_by, created_at, updated_at, version)
+        SELECT #{childMeasurementId}, tenant_id, #{childInboundId}, #{batchId}, id, source_type, source_code,
+           NULL, NULL, device_code, warehouse_code, measured_at, 'APPROVED',
+           raw_payload_json, original_document_no, original_gross_weight_kg, original_volume_cbm,
+           actual_goods_name, #{packageCount}, NULL, NULL, NULL, #{operatorId},
+           CURRENT_TIMESTAMP(3), CURRENT_TIMESTAMP(3), 0
+          FROM fl_inbound_measurement
+         WHERE id = #{sourceMeasurementId} AND tenant_id = #{accountId} AND inbound_id = #{parentInboundId}
+           AND status = 'APPROVED'
+        """)
+    int cloneMeasurement(@Param("accountId") long accountId, @Param("parentInboundId") long parentInboundId,
+                         @Param("sourceMeasurementId") long sourceMeasurementId,
+                         @Param("childInboundId") long childInboundId, @Param("childMeasurementId") long childMeasurementId,
+                         @Param("batchId") long batchId, @Param("packageCount") int packageCount,
+                         @Param("operatorId") long operatorId);
+
+    @Insert("""
+        INSERT INTO fl_inbound_measurement_item
+          (id, tenant_id, measurement_id, split_item_id, source_measurement_item_id, inbound_detail_id,
+           external_detail_no, box_code, item_no, box_specification, package_count, length_cm, width_cm,
+           height_cm, girth_cm, unit_weight_kg, unit_volume_cbm, volume_raw_cbm, volume_cbm,
+           total_weight_kg, total_volume_cbm, volume_weight_kg, calculation_rule_version,
+           source_image_file_id, machine_no, device_measured_at, over_limit_warning,
+           outer_length_cm, outer_width_cm, outer_height_cm, remark, created_at, updated_at)
+        SELECT #{childMeasurementItemId}, tenant_id, #{childMeasurementId}, #{splitItemId}, id, inbound_detail_id,
+           NULL, NULL, CAST(#{lineNo} AS CHAR), box_specification, #{packageCount}, length_cm, width_cm,
+           height_cm, girth_cm, unit_weight_kg, unit_volume_cbm, volume_raw_cbm, volume_cbm,
+           CASE WHEN unit_weight_kg IS NULL THEN NULL ELSE unit_weight_kg * #{packageCount} END,
+           unit_volume_cbm * #{packageCount}, volume_weight_kg / NULLIF(package_count, 0) * #{packageCount},
+           calculation_rule_version, source_image_file_id, machine_no, device_measured_at,
+           over_limit_warning, outer_length_cm, outer_width_cm, outer_height_cm, remark,
+           CURRENT_TIMESTAMP(3), CURRENT_TIMESTAMP(3)
+          FROM fl_inbound_measurement_item
+         WHERE id = #{sourceMeasurementItemId} AND tenant_id = #{accountId}
+           AND measurement_id = #{sourceMeasurementId}
+        """)
+    int cloneMeasurementItem(@Param("accountId") long accountId, @Param("sourceMeasurementId") long sourceMeasurementId,
+                             @Param("sourceMeasurementItemId") long sourceMeasurementItemId,
+                             @Param("childMeasurementId") long childMeasurementId, @Param("splitItemId") long splitItemId,
+                             @Param("childMeasurementItemId") long childMeasurementItemId,
+                             @Param("lineNo") int lineNo, @Param("packageCount") int packageCount);
+
+    @Update("""
+        UPDATE fl_inbound_order
+           SET package_count = GREATEST(COALESCE(package_count, total_package_count) - #{packageCount}, 0),
+               split_status = 'PARTIALLY_SPLIT', updated_by = #{operatorId}, version = version + 1
+         WHERE id = #{parentInboundId} AND tenant_id = #{accountId} AND deleted = 0
+           AND inbound_role = 'MASTER' AND process_status = 'INBOUNDED' AND version = #{expectedVersion}
+        """)
+    int markParentPartiallySplit(@Param("accountId") long accountId, @Param("parentInboundId") long parentInboundId,
+                                 @Param("packageCount") int packageCount, @Param("operatorId") long operatorId,
+                                 @Param("expectedVersion") int expectedVersion);
+
+    @Update("""
+        UPDATE fl_inbound_split_batch
+           SET status = 'APPLIED', applied_at = CURRENT_TIMESTAMP(3), version = version + 1
+         WHERE id = #{batchId} AND tenant_id = #{accountId} AND status = 'PREPARED'
+        """)
+    int applyBatch(@Param("accountId") long accountId, @Param("batchId") long batchId);
+
+    @Insert("""
+        INSERT INTO fl_inbound_split_history
+          (id, tenant_id, split_batch_id, operation_id, action_type, after_snapshot,
+           operator_id, operator_name, operation_reason, created_at)
+        VALUES
+          (#{historyId}, #{accountId}, #{batchId}, #{operationId}, 'APPLY', #{afterSnapshot},
+           #{operatorId}, #{operatorName}, #{reason}, CURRENT_TIMESTAMP(3))
+        """)
+    int insertHistory(@Param("historyId") long historyId, @Param("accountId") long accountId,
+                      @Param("batchId") long batchId, @Param("operationId") String operationId,
+                      @Param("afterSnapshot") String afterSnapshot, @Param("operatorId") long operatorId,
+                      @Param("operatorName") String operatorName, @Param("reason") String reason);
+
+    @Update("""
+        UPDATE fl_loading_plan_item plan_item
+          JOIN fl_loading_pick_item pick_item ON pick_item.loading_plan_item_id = plan_item.id
+           SET plan_item.package_count = pick_item.picked_package_count,
+               plan_item.updated_by = #{operatorId}, plan_item.updated_by_name = #{operatorName},
+               plan_item.updated_at = CURRENT_TIMESTAMP(3), plan_item.version = plan_item.version + 1
+         WHERE plan_item.id = #{planItemId} AND plan_item.deleted = 0
+           AND pick_item.item_status = 'PARTIAL'
+           AND pick_item.picked_package_count > 0
+        """)
+    int convergePartialPlanItem(@Param("planItemId") long planItemId, @Param("operatorId") long operatorId,
+                                @Param("operatorName") String operatorName);
+
+    @Update("""
+        UPDATE fl_loading_plan_item plan_item
+          JOIN fl_loading_pick_item pick_item ON pick_item.loading_plan_item_id = plan_item.id
+           SET plan_item.deleted = 1, plan_item.removed_by = #{operatorId},
+               plan_item.removed_by_name = #{operatorName}, plan_item.removed_at = CURRENT_TIMESTAMP(3),
+               plan_item.updated_by = #{operatorId}, plan_item.updated_by_name = #{operatorName},
+               plan_item.updated_at = CURRENT_TIMESTAMP(3), plan_item.version = plan_item.version + 1
+         WHERE plan_item.id = #{planItemId} AND plan_item.deleted = 0
+           AND pick_item.item_status = 'SKIPPED' AND pick_item.picked_package_count = 0
+        """)
+    int removeSkippedPlanItem(@Param("planItemId") long planItemId, @Param("operatorId") long operatorId,
+                              @Param("operatorName") String operatorName);
+
     @Select({"<script>", """
         SELECT item.id AS measurementItemId, measurement.id AS measurementId,
                item.inbound_detail_id AS inboundDetailId, item.package_count AS packageCount
@@ -46,8 +222,47 @@ public interface InboundSplitSettlementMapper {
                                                       @Param("inboundId") long inboundId,
                                                       @Param("detailIds") List<Long> detailIds);
 
+    @Select("""
+        SELECT item.id AS measurementItemId, measurement.id AS measurementId,
+               item.inbound_detail_id AS inboundDetailId, item.package_count AS packageCount
+          FROM fl_inbound_measurement measurement
+          JOIN fl_inbound_measurement_item item ON item.measurement_id = measurement.id
+         WHERE measurement.tenant_id = #{accountId} AND measurement.inbound_id = #{inboundId}
+           AND measurement.status = 'APPROVED' AND item.package_count > 0
+           AND measurement.id = (
+             SELECT MAX(latest.id) FROM fl_inbound_measurement latest
+              WHERE latest.tenant_id = #{accountId} AND latest.inbound_id = #{inboundId}
+                AND latest.status = 'APPROVED')
+         ORDER BY item.id ASC
+         FOR UPDATE
+        """)
+    List<MeasurementItemRow> lockLatestApprovedItemsForInbound(@Param("accountId") long accountId,
+                                                                @Param("inboundId") long inboundId);
+
+    @Update("""
+        UPDATE fl_inbound_measurement
+           SET total_package_count = #{packageCount}, updated_at = CURRENT_TIMESTAMP(3), version = version + 1
+         WHERE id = #{measurementId} AND tenant_id = #{accountId} AND inbound_id = #{inboundId}
+           AND status = 'APPROVED'
+        """)
+    int updateSourceMeasurementPackageCount(@Param("accountId") long accountId,
+                                            @Param("inboundId") long inboundId,
+                                            @Param("measurementId") long measurementId,
+                                            @Param("packageCount") int packageCount);
+
+    @Update("""
+        UPDATE fl_inbound_measurement_item
+           SET package_count = #{packageCount}, updated_at = CURRENT_TIMESTAMP(3)
+         WHERE id = #{measurementItemId} AND measurement_id = #{measurementId} AND tenant_id = #{accountId}
+        """)
+    int updateSourceMeasurementItemPackageCount(@Param("accountId") long accountId,
+                                                @Param("measurementId") long measurementId,
+                                                @Param("measurementItemId") long measurementItemId,
+                                                @Param("packageCount") int packageCount);
+
     record ParentRow(Long id, Long tenantId, String inboundCode, String inboundRole,
-                     String processStatus, Integer version) {
+                     String processStatus, Integer totalPackageCount, Integer packageCount,
+                     Integer version) {
     }
 
     record MeasurementItemRow(Long measurementItemId, Long measurementId, Long inboundDetailId,
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/mapper/LoadingPickItemMapper.java b/firstleg/src/main/java/com/baiyue/firstleg/mapper/LoadingPickItemMapper.java
index 111bc28ca..1abfbe2b7 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/mapper/LoadingPickItemMapper.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/mapper/LoadingPickItemMapper.java
@@ -97,6 +97,7 @@ public interface LoadingPickItemMapper extends BaseMapper<LoadingPickItemEntity>
            SET item_status = CASE WHEN picked_package_count + #{count} = planned_package_count
                                   THEN 'PICKED' ELSE 'PICKING' END,
                picked_package_count = picked_package_count + #{count},
+               release_mode = #{releaseMode}, release_location_ids = #{releaseLocationIds},
                version = version + 1
          WHERE id = #{id} AND version = #{version}
            AND EXISTS (SELECT 1 FROM fl_loading_plan_item plan_item
@@ -106,12 +107,17 @@ public interface LoadingPickItemMapper extends BaseMapper<LoadingPickItemEntity>
                           AND booking.warehouse_id = #{warehouseId} AND plan_item.deleted = 0)
            AND picked_package_count + #{count} <= planned_package_count
         """)
-    int pick(@Param("id") long id, @Param("count") int count, @Param("version") int version,
+    int pick(@Param("id") long id, @Param("count") int count,
+             @Param("releaseMode") String releaseMode,
+             @Param("releaseLocationIds") String releaseLocationIds,
+             @Param("version") int version,
              @Param("warehouseId") long warehouseId);
 
     @Update("""
         UPDATE fl_loading_pick_item
-           SET picked_package_count = #{finalCount}, item_status = 'PARTIAL', version = version + 1
+           SET picked_package_count = #{finalCount}, item_status = 'PARTIAL',
+               release_mode = #{releaseMode}, release_location_ids = #{releaseLocationIds},
+               version = version + 1
          WHERE id = #{id} AND version = #{version}
            AND EXISTS (SELECT 1 FROM fl_loading_plan_item plan_item
                         JOIN fl_loading_plan plan ON plan.id = plan_item.loading_plan_id
@@ -122,7 +128,10 @@ public interface LoadingPickItemMapper extends BaseMapper<LoadingPickItemEntity>
            AND picked_package_count &lt; #{finalCount}
            AND #{finalCount} &lt; planned_package_count
         """)
-    int partial(@Param("id") long id, @Param("finalCount") int finalCount, @Param("version") int version,
+    int partial(@Param("id") long id, @Param("finalCount") int finalCount,
+                @Param("releaseMode") String releaseMode,
+                @Param("releaseLocationIds") String releaseLocationIds,
+                @Param("version") int version,
                 @Param("warehouseId") long warehouseId);
 
     @Update("""
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/repository/InboundPalletAllocationRepository.java b/firstleg/src/main/java/com/baiyue/firstleg/repository/InboundPalletAllocationRepository.java
index f17ae052f..500295196 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/repository/InboundPalletAllocationRepository.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/repository/InboundPalletAllocationRepository.java
@@ -53,6 +53,7 @@ public class InboundPalletAllocationRepository {
             remaining -= allocatedPackages;
             value.setLocationId(source.locationId());
             value.setLocationCode(source.locationCode());
+            value.setReservationId(source.reservationId());
             // 仓储确认响应只返回 reservationId；沿用预占阶段的预占单号快照。
             value.setReservationNo(source.reservationNo() != null ? source.reservationNo()
                 : reservationNos.get(source.palletId()));
@@ -73,6 +74,72 @@ public class InboundPalletAllocationRepository {
         }
     }
 
+    /** 父单快照在仓库资源转移前标记为已转移，后续锁查询不会再将其当作可用资源。 */
+    public void markTransferred(long tenantId, long inboundId, List<InboundPalletAllocationEntity> allocations,
+                                List<Long> releasedReservationIds) {
+        for (InboundPalletAllocationEntity allocation : allocations) {
+            if (releasedReservationIds.contains(allocation.getReservationId())) {
+                continue;
+            }
+            int allocated = allocation.getAllocatedPackageCount() == null ? 0 : allocation.getAllocatedPackageCount();
+            int picked = allocation.getPickedPackageCount() == null ? 0 : allocation.getPickedPackageCount();
+            if (allocated <= picked) {
+                continue;
+            }
+            if (allocation.getId() == null || mapper.markTransferred(allocation.getId(), tenantId, inboundId) != 1) {
+                throw new IllegalStateException("库位资源转移状态已被并发修改");
+            }
+        }
+    }
+
+    public void markReleased(long tenantId, long inboundId, List<Long> reservationIds) {
+        for (Long reservationId : reservationIds) {
+            if (reservationId == null || mapper.markReleased(tenantId, inboundId, reservationId) != 1) {
+                throw new IllegalStateException("库位释放状态已被并发修改");
+            }
+        }
+    }
+
+    /**
+     * 依据已经锁定且已扣减本次拣货数量的父单分配，预先固化子单快照。
+     * 仓库 transfer 是本地事务最后一个外部动作，成功后不再执行本地写入，避免跨服务重试时目标子单变化。
+     */
+    @Transactional
+    public void copyRemainingToChild(long tenantId, long inboundId, List<InboundPalletAllocationEntity> parent) {
+        mapper.delete(new LambdaQueryWrapper<InboundPalletAllocationEntity>()
+            .eq(InboundPalletAllocationEntity::getTenantId, tenantId)
+            .eq(InboundPalletAllocationEntity::getInboundId, inboundId));
+        LocalDateTime now = LocalDateTime.now();
+        for (InboundPalletAllocationEntity source : parent) {
+            int allocated = source.getAllocatedPackageCount() == null ? 0 : source.getAllocatedPackageCount();
+            int picked = source.getPickedPackageCount() == null ? 0 : source.getPickedPackageCount();
+            int remaining = allocated - picked;
+            if (remaining <= 0) {
+                continue;
+            }
+            InboundPalletAllocationEntity value = new InboundPalletAllocationEntity();
+            value.setTenantId(tenantId);
+            value.setInboundId(inboundId);
+            value.setAllocationNo(source.getAllocationNo());
+            value.setWarehouseId(source.getWarehouseId());
+            value.setWarehouseResourceTenantId(source.getWarehouseResourceTenantId());
+            value.setPalletId(source.getPalletId());
+            value.setPalletCode(source.getPalletCode());
+            value.setPalletCapacityCbm(source.getPalletCapacityCbm());
+            value.setAllocatedVolumeCbm(source.getAllocatedVolumeCbm());
+            value.setAllocatedPackageCount(remaining);
+            value.setPickedPackageCount(0);
+            value.setLocationId(source.getLocationId());
+            value.setLocationCode(source.getLocationCode());
+            value.setReservationId(source.getReservationId());
+            value.setReservationNo(source.getReservationNo());
+            value.setAllocationStatus("CONFIRMED");
+            value.setCreatedAt(now);
+            value.setUpdatedAt(now);
+            mapper.insert(value);
+        }
+    }
+
     private static String normalize(String state) {
         return "OCCUPIED".equals(state) ? "CONFIRMED" : state;
     }
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/repository/LoadingPickRepository.java b/firstleg/src/main/java/com/baiyue/firstleg/repository/LoadingPickRepository.java
index 1092164d6..d22fdc003 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/repository/LoadingPickRepository.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/repository/LoadingPickRepository.java
@@ -99,12 +99,14 @@ public class LoadingPickRepository {
             .eq(LoadingPickItemEntity::getLoadingPlanItemId, planItemId));
     }
 
-    public int pick(long itemId, int count, int version, long warehouseId) {
-        return items.pick(itemId, count, version, warehouseId);
+    public int pick(long itemId, int count, String releaseMode, String releaseLocationIds,
+                    int version, long warehouseId) {
+        return items.pick(itemId, count, releaseMode, releaseLocationIds, version, warehouseId);
     }
 
-    public int partial(long itemId, int finalCount, int version, long warehouseId) {
-        return items.partial(itemId, finalCount, version, warehouseId);
+    public int partial(long itemId, int finalCount, String releaseMode, String releaseLocationIds,
+                       int version, long warehouseId) {
+        return items.partial(itemId, finalCount, releaseMode, releaseLocationIds, version, warehouseId);
     }
 
     public int skip(long itemId, int version, long warehouseId) {
@@ -119,6 +121,18 @@ public class LoadingPickRepository {
         return items.unfinishedCount(planId) == 0;
     }
 
+    /**
+     * 跳拣释放候选前，必须保证同一入库单没有已拣或部分拣货的明细，避免把仍在装柜的货物
+     * 重新暴露给智能装柜。
+     */
+    public boolean hasPickedOrPartialItem(long taskId, Long inboundId) {
+        if (inboundId == null) {
+            return false;
+        }
+        return items(taskId).stream().anyMatch(item -> inboundId.equals(item.getInboundId())
+            && ("PICKED".equals(item.getItemStatus()) || "PARTIAL".equals(item.getItemStatus())));
+    }
+
     public LoadingPickHistoryEntity history(String operationId) {
         return histories.selectOne(new LambdaQueryWrapper<LoadingPickHistoryEntity>()
             .eq(LoadingPickHistoryEntity::getOperationId, operationId));
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/service/LoadingPickService.java b/firstleg/src/main/java/com/baiyue/firstleg/service/LoadingPickService.java
index 2260afb84..e579abbdb 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/service/LoadingPickService.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/service/LoadingPickService.java
@@ -31,6 +31,7 @@ import java.nio.charset.StandardCharsets;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 import java.util.List;
+import java.util.HashSet;
 
 /** 装柜中 PDA 拣货任务及明细同步。 */
 @Service
@@ -39,6 +40,8 @@ public class LoadingPickService {
     private LoadingPickRepository repository;
     @Resource
     private LoadingListService loadingListService;
+    @Resource
+    private PdaPickSettlementService settlementService;
 
     @Transactional
     public void begin(long planId, String containerNo, long operatorId, String operatorName,
@@ -138,9 +141,10 @@ public class LoadingPickService {
 
     @Transactional
     public Task pick(long taskId, long itemId, PickRequest request, long operatorId, String operatorName) {
+        ReleaseSelection release = releaseSelection(request.releaseMode(), request.locationIds());
         String operationId = request.operationId().trim();
         String requestHash = hash(taskId + "|" + itemId + "|" + request.warehouseId()
-            + "|" + request.pickedPackageCount());
+            + "|" + request.pickedPackageCount() + "|" + release.mode() + "|" + release.json());
         requireNoTaskOperation(operationId);
         LoadingPickHistoryEntity replay = repository.history(operationId);
         if (replay != null) {
@@ -155,7 +159,8 @@ public class LoadingPickService {
         if (item == null) {
             throw new BizException(ResultCode.NOT_FOUND, "PDA拣货明细不存在");
         }
-        if (repository.pick(itemId, request.pickedPackageCount(), request.version(), request.warehouseId()) != 1) {
+        if (repository.pick(itemId, request.pickedPackageCount(), release.mode(), release.json(),
+            request.version(), request.warehouseId()) != 1) {
             throw conflict("拣货数量超过计划箱数或明细版本已变化");
         }
         LoadingPickHistoryEntity history = new LoadingPickHistoryEntity();
@@ -168,16 +173,17 @@ public class LoadingPickService {
         history.setOperatorId(operatorId);
         history.setOperatorName(operatorName);
         repository.insert(history);
-        touchAndSync(task, operatorId, operatorName);
+        touchSettleFinishAndSync(task, operatorId, operatorName);
         return view(requiredTask(taskId), request.warehouseId());
     }
 
     @Transactional
     public Task partial(long taskId, long itemId, PartialPickRequest request,
                         long operatorId, String operatorName) {
+        ReleaseSelection release = releaseSelection(request.releaseMode(), request.locationIds());
         String operationId = request.operationId().trim();
         String requestHash = hash("PARTIAL|" + taskId + "|" + itemId + "|" + request.warehouseId()
-            + "|" + request.finalPickedPackageCount());
+            + "|" + request.finalPickedPackageCount() + "|" + release.mode() + "|" + release.json());
         requireNoTaskOperation(operationId);
         LoadingPickHistoryEntity replay = repository.history(operationId);
         if (replay != null) {
@@ -186,12 +192,13 @@ public class LoadingPickService {
         }
         LoadingPickTaskEntity task = requiredAssignedLoadingTaskForUpdate(taskId, operatorId);
         requireWarehouseItem(taskId, itemId, request.warehouseId());
-        if (repository.partial(itemId, request.finalPickedPackageCount(), request.version(), request.warehouseId()) != 1) {
+        if (repository.partial(itemId, request.finalPickedPackageCount(), release.mode(), release.json(),
+            request.version(), request.warehouseId()) != 1) {
             throw conflict("部分拣货箱数必须大于已拣箱数且小于计划箱数，或明细版本已变化");
         }
         insertHistory(taskId, itemId, operationId, requestHash, "PARTIAL",
             request.finalPickedPackageCount(), null, operatorId, operatorName);
-        touchAndSync(task, operatorId, operatorName);
+        touchSettleFinishAndSync(task, operatorId, operatorName);
         return view(requiredTask(taskId), request.warehouseId());
     }
 
@@ -208,13 +215,16 @@ public class LoadingPickService {
             return view(requiredTask(taskId), request.warehouseId());
         }
         LoadingPickTaskEntity task = requiredAssignedLoadingTaskForUpdate(taskId, operatorId);
-        requireWarehouseItem(taskId, itemId, request.warehouseId());
+        LoadingPickItemEntity item = requireWarehouseItem(taskId, itemId, request.warehouseId());
+        if (repository.hasPickedOrPartialItem(taskId, item.getInboundId())) {
+            throw conflict("同一入库单已存在已拣或部分拣货明细，不能跳拣并恢复智能装柜候选");
+        }
         if (repository.skip(itemId, request.version(), request.warehouseId()) != 1) {
             throw conflict("跳拣仅允许未开始拣货的待拣明细，或明细版本已变化");
         }
         insertHistory(taskId, itemId, operationId, requestHash, "SKIP", 0, reason,
             operatorId, operatorName);
-        touchAndSync(task, operatorId, operatorName);
+        touchSettleFinishAndSync(task, operatorId, operatorName);
         return view(requiredTask(taskId), request.warehouseId());
     }
 
@@ -300,6 +310,16 @@ public class LoadingPickService {
         repository.update(item);
     }
 
+    private void settleAndFinish(LoadingPickTaskEntity task, long operatorId, String operatorName) {
+        if (!repository.allTaskItemsResolved(task.getId())) {
+            return;
+        }
+        settlementService.settle(task.getId(), operatorId, operatorName);
+        if (repository.allPlanItemsPicked(task.getLoadingPlanId())) {
+            loadingListService.finishFromPda(task.getLoadingPlanId(), task.getId(), operatorId, operatorName);
+        }
+    }
+
     private LoadingPickTaskEntity requiredTask(long taskId) {
         LoadingPickTaskEntity task = repository.task(taskId);
         if (task == null) {
@@ -333,10 +353,12 @@ public class LoadingPickService {
         return task;
     }
 
-    private void requireWarehouseItem(long taskId, long itemId, long warehouseId) {
-        if (repository.item(taskId, itemId, warehouseId) == null) {
+    private LoadingPickItemEntity requireWarehouseItem(long taskId, long itemId, long warehouseId) {
+        LoadingPickItemEntity item = repository.item(taskId, itemId, warehouseId);
+        if (item == null) {
             throw new BizException(ResultCode.NOT_FOUND, "PDA拣货明细不存在或不属于当前仓库");
         }
+        return item;
     }
 
     private Task view(LoadingPickTaskEntity task, Long warehouseId) {
@@ -360,10 +382,15 @@ public class LoadingPickService {
             workflowStatus, task.getVersion(), assignment, review, items);
     }
 
-    private void touchAndSync(LoadingPickTaskEntity task, long operatorId, String operatorName) {
+    /**
+     * 先触碰仍处于 LOADING 的任务，再结算并推进装柜计划。计划完成触发器会同步把任务改为
+     * COMPLETED，因此绝不能在 finishFromPda 之后再以 LOADING 状态触碰任务。
+     */
+    private void touchSettleFinishAndSync(LoadingPickTaskEntity task, long operatorId, String operatorName) {
         if (repository.touchTask(task.getId(), task.getVersion()) != 1) {
             throw conflict("PDA任务版本已变化");
         }
+        settleAndFinish(task, operatorId, operatorName);
         repository.syncInboundProjections(task.getId(), operatorId, operatorName);
     }
 
@@ -434,6 +461,25 @@ public class LoadingPickService {
         }
     }
 
+    private static ReleaseSelection releaseSelection(String requestedMode, List<Long> requestedLocationIds) {
+        String mode = requestedMode == null || requestedMode.isBlank()
+            ? (requestedLocationIds == null ? "AUTO" : "MANUAL") : requestedMode.trim().toUpperCase();
+        if (!"AUTO".equals(mode) && !"MANUAL".equals(mode)) {
+            throw new BizException(ResultCode.BAD_REQUEST, "releaseMode只能是AUTO或MANUAL");
+        }
+        List<Long> ids = requestedLocationIds == null ? List.of() : requestedLocationIds.stream().sorted().toList();
+        if (new HashSet<>(ids).size() != ids.size()) {
+            throw new BizException(ResultCode.BAD_REQUEST, "释放库位不能重复");
+        }
+        if ("AUTO".equals(mode) && !ids.isEmpty()) {
+            throw new BizException(ResultCode.BAD_REQUEST, "AUTO模式不能指定释放库位");
+        }
+        String json = ids.stream().map(String::valueOf).collect(java.util.stream.Collectors.joining(",", "[", "]"));
+        return new ReleaseSelection(mode, json);
+    }
+
+    private record ReleaseSelection(String mode, String json) {}
+
     private static String trim(String value) {
         return value == null ? null : value.trim();
     }
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/service/MerchantInboundBillingService.java b/firstleg/src/main/java/com/baiyue/firstleg/service/MerchantInboundBillingService.java
index 62f46de96..41a9f399d 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/service/MerchantInboundBillingService.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/service/MerchantInboundBillingService.java
@@ -114,7 +114,8 @@ public class MerchantInboundBillingService {
     }
 
     private static boolean isPublished(InboundOrderEntity inbound) {
-        return InboundProcessStatus.WAIT_SPLIT.equals(inbound.getProcessStatus())
+        return (InboundProcessStatus.INBOUNDED.equals(inbound.getProcessStatus())
+            || "WAIT_SPLIT".equals(inbound.getProcessStatus()))
             && "APPROVED".equals(inbound.getMeasureReviewStatus())
             && "CONFIRMED".equals(inbound.getFeeStatus());
     }
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/service/PdaPickSettlementPlan.java b/firstleg/src/main/java/com/baiyue/firstleg/service/PdaPickSettlementPlan.java
index d0028eb74..913d327af 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/service/PdaPickSettlementPlan.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/service/PdaPickSettlementPlan.java
@@ -6,6 +6,7 @@ import com.baiyue.firstleg.entity.LoadingPickItemEntity;
 
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
 import java.util.stream.Collectors;
 
 /** PDA任务结束时的纯结算规则，不包含数据库写入。 */
@@ -26,8 +27,14 @@ final class PdaPickSettlementPlan {
             .filter(item -> "PARTIAL".equals(item.getItemStatus()))
             .map(PdaPickSettlementPlan::splitLine)
             .collect(Collectors.groupingBy(SplitLine::inboundId));
+        Set<Long> inboundsWithPickedOrPartial = items.stream()
+            .filter(item -> "PICKED".equals(item.getItemStatus()) || "PARTIAL".equals(item.getItemStatus()))
+            .map(LoadingPickItemEntity::getInboundId)
+            .filter(java.util.Objects::nonNull)
+            .collect(java.util.stream.Collectors.toSet());
         List<Long> skippedPlanItemIds = items.stream()
             .filter(item -> "SKIPPED".equals(item.getItemStatus()))
+            .filter(item -> !inboundsWithPickedOrPartial.contains(item.getInboundId()))
             .map(LoadingPickItemEntity::getLoadingPlanItemId)
             .toList();
         return new Resolution(partialByInbound, skippedPlanItemIds);
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/service/PdaPickSettlementService.java b/firstleg/src/main/java/com/baiyue/firstleg/service/PdaPickSettlementService.java
new file mode 100644
index 000000000..b4814f691
--- /dev/null
+++ b/firstleg/src/main/java/com/baiyue/firstleg/service/PdaPickSettlementService.java
@@ -0,0 +1,368 @@
+package com.baiyue.firstleg.service;
+
+import com.baiyue.common.core.api.ApiResponse;
+import com.baiyue.common.core.api.ResultCode;
+import com.baiyue.common.core.exception.BizException;
+import com.baiyue.firstleg.client.WarehousePalletLocationClient;
+import com.baiyue.firstleg.entity.InboundPalletAllocationEntity;
+import com.baiyue.firstleg.entity.LoadingPickItemEntity;
+import com.baiyue.firstleg.mapper.InboundSplitSettlementMapper;
+import com.baiyue.firstleg.mapper.InboundSplitSettlementMapper.MeasurementItemRow;
+import com.baiyue.firstleg.mapper.InboundSplitSettlementMapper.ParentRow;
+import com.baiyue.firstleg.repository.InboundPalletAllocationRepository;
+import com.baiyue.firstleg.repository.LoadingPickRepository;
+import com.baomidou.mybatisplus.core.toolkit.IdWorker;
+import feign.FeignException;
+import jakarta.annotation.Resource;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+/** PDA 任务结算：未装柜箱数生成二级子入库单，并转移其库位资源归属。 */
+@Service
+public class PdaPickSettlementService {
+    private static final long PLATFORM_WAREHOUSE_RESOURCE_TENANT_ID = 0L;
+    private static final String SOURCE_SERVICE = "firstleg-service";
+
+    @Resource
+    private LoadingPickRepository picks;
+    @Resource
+    private InboundSplitSettlementMapper splits;
+    @Resource
+    private InboundPalletAllocationRepository allocations;
+    @Resource
+    private WarehousePalletLocationClient warehouse;
+    @Value("${baiyue.security.internal-service-token}")
+    private String internalToken;
+
+    /**
+     * 同一父单最多生成一张子单。子单承接该父单所有未装柜数量，而不是只承接 PARTIAL 行的差额。
+     * 纯跳单才恢复智能装柜候选；同单存在已拣或部分拣货时，跳单行随未装柜数量一并归入子单。
+     */
+    @Transactional
+    public void settle(long taskId, long operatorId, String operatorName) {
+        if (!picks.allTaskItemsResolved(taskId)) {
+            return;
+        }
+        List<LoadingPickItemEntity> taskItems = picks.items(taskId);
+        PdaPickSettlementPlan.Resolution resolution = PdaPickSettlementPlan.resolve(taskItems);
+        for (Long planItemId : resolution.skippedPlanItemIds()) {
+            // 重复 settle（例如复核）时该行已逻辑删除，0 行是可接受的幂等结果。
+            int changed = splits.removeSkippedPlanItem(planItemId, operatorId, operatorName);
+            if (changed != 0 && changed != 1) {
+                throw conflict("跳单明细已被并发修改，请刷新后重试");
+            }
+        }
+
+        Map<Long, Integer> pickedByInbound = pickedByInbound(taskItems);
+        Set<Long> newlySplitInbounds = new java.util.HashSet<>();
+        pickedByInbound.entrySet().stream().sorted(Map.Entry.comparingByKey())
+            .forEach(entry -> {
+                if (settleInbound(entry.getKey(), entry.getValue(), taskItems, taskId, operatorId, operatorName)) {
+                    newlySplitInbounds.add(entry.getKey());
+                }
+            });
+        for (List<PdaPickSettlementPlan.SplitLine> lines : resolution.partialByInbound().values()) {
+            for (PdaPickSettlementPlan.SplitLine line : lines) {
+                if (newlySplitInbounds.contains(line.inboundId())) {
+                    requireAffected(splits.convergePartialPlanItem(line.loadingPlanItemId(), operatorId, operatorName),
+                        "部分拣货装柜明细");
+                }
+            }
+        }
+    }
+
+    private boolean settleInbound(long parentInboundId, int pickedPackageCount,
+                                  List<LoadingPickItemEntity> taskItems, long taskId,
+                                  long operatorId, String operatorName) {
+        ParentRow parent = splits.lockParent(parentInboundId);
+        if (parent == null || parent.tenantId() == null || parent.tenantId() <= 0
+            || !"MASTER".equals(parent.inboundRole()) || !"INBOUNDED".equals(parent.processStatus())) {
+            throw conflict("待拆分主入库单不在可拆分状态");
+        }
+        Long existingChild = splits.childId(parent.tenantId(), parentInboundId);
+        if (existingChild != null) {
+            return false;
+        }
+        int parentAvailable = count(parent.packageCount(), "主入库单可用箱数");
+        if (pickedPackageCount <= 0 || pickedPackageCount > parentAvailable) {
+            throw conflict("本次已拣箱数与主入库单可用箱数不一致");
+        }
+        int childPackageCount = parentAvailable - pickedPackageCount;
+        List<InboundPalletAllocationEntity> confirmedAllocations = new ArrayList<>(allocations.lockConfirmed(
+            parent.tenantId(), parentInboundId));
+        confirmedAllocations.sort(Comparator.comparing(InboundPalletAllocationEntity::getAllocationNo,
+            Comparator.nullsLast(Integer::compareTo)));
+        consumePickedAllocations(parent.tenantId(), parentInboundId, confirmedAllocations, pickedPackageCount);
+        List<Long> releasedReservationIds = releasedReservationIds(confirmedAllocations);
+        List<WarehousePalletLocationClient.SettlementTransferItem> transferItems =
+            remainingTransferItems(confirmedAllocations);
+        int allocationRemaining = transferItems.stream()
+            .mapToInt(WarehousePalletLocationClient.SettlementTransferItem::remainingPackageCount).sum();
+        if (allocationRemaining != childPackageCount) {
+            throw conflict("父入库单库位剩余箱数与未装柜箱数不一致");
+        }
+        long warehouseId = warehouseId(confirmedAllocations);
+        if (childPackageCount == 0) {
+            if (!transferItems.isEmpty() || releasedReservationIds.isEmpty()) {
+                throw conflict("全量拣货后库位资源结算不完整");
+            }
+            allocations.markReleased(parent.tenantId(), parentInboundId, releasedReservationIds);
+            settleWarehouseResources(parentInboundId, 0L, "", taskId, operatorId, operatorName,
+                warehouseId, parentAvailable, 0, releasedReservationIds, List.of());
+            return false;
+        }
+
+        List<MeasurementItemRow> measurements = splits.lockLatestApprovedItemsForInbound(
+            parent.tenantId(), parentInboundId);
+        if (measurements.isEmpty()) {
+            throw conflict("主入库单缺少已审核测量明细，不能生成子入库单");
+        }
+        long sourceMeasurementId = measurements.get(0).measurementId();
+        if (measurements.stream().anyMatch(item -> !Objects.equals(sourceMeasurementId, item.measurementId()))) {
+            throw conflict("主入库单存在多个已审核测量批次，不能自动拆分");
+        }
+        Map<Long, Integer> pickedByDetail = pickedByDetail(taskItems, parentInboundId);
+        int pickedByMeasurement = pickedByDetail.values().stream().mapToInt(Integer::intValue).sum();
+        if (pickedByMeasurement != pickedPackageCount) {
+            throw conflict("PDA 已拣明细与入库单已拣箱数不一致");
+        }
+        List<MeasurementSplitLine> measurementLines = measurementLines(measurements, pickedByDetail);
+        int measuredRemaining = measurementLines.stream().mapToInt(MeasurementSplitLine::remainingPackageCount).sum();
+        if (measuredRemaining != childPackageCount) {
+            throw conflict("主入库单测量明细剩余箱数与未装柜箱数不一致");
+        }
+
+        if (transferItems.isEmpty()) {
+            throw conflict("父入库单可转移库位剩余箱数与未装柜箱数不一致");
+        }
+
+        long childId = IdWorker.getId();
+        long batchId = IdWorker.getId();
+        String operationId = "PDA-SPLIT-" + taskId + '-' + parentInboundId;
+        String idempotencyKey = "pda-task-" + taskId;
+        String childCode = childInboundCode(parent.inboundCode(), childId);
+        int parentVersion = parent.version() == null ? 0 : parent.version();
+        requireAffected(splits.cloneChild(parent.tenantId(), parentInboundId, childId, childCode, childPackageCount,
+            operatorId, operatorName), "子入库单");
+        requireAffected(splits.insertBatch(batchId, parent.tenantId(), parentInboundId, operationId,
+            idempotencyKey, parentVersion, childPackageCount, "PDA拣货后未装柜箱数", operatorId, operatorName), "拆分批次");
+        long childMeasurementId = IdWorker.getId();
+        requireAffected(splits.cloneMeasurement(parent.tenantId(), parentInboundId, sourceMeasurementId,
+            childId, childMeasurementId, batchId, childPackageCount, operatorId), "子入库测量批次");
+
+        int lineNo = 1;
+        for (MeasurementSplitLine line : measurementLines) {
+            if (line.remainingPackageCount() <= 0) {
+                continue;
+            }
+            long splitItemId = IdWorker.getId();
+            requireAffected(splits.insertSplitItem(splitItemId, parent.tenantId(), batchId, parentInboundId,
+                childId, lineNo, line.item().inboundDetailId(), sourceMeasurementId,
+                line.item().measurementItemId(), line.remainingPackageCount()), "拆分明细");
+            requireAffected(splits.cloneMeasurementItem(parent.tenantId(), sourceMeasurementId,
+                line.item().measurementItemId(), childMeasurementId, splitItemId, IdWorker.getId(), lineNo,
+                line.remainingPackageCount()), "子入库测量明细");
+            lineNo++;
+        }
+        requireAffected(splits.updateSourceMeasurementPackageCount(parent.tenantId(), parentInboundId,
+            sourceMeasurementId, pickedPackageCount), "主入库测量批次");
+        for (MeasurementSplitLine line : measurementLines) {
+            requireAffected(splits.updateSourceMeasurementItemPackageCount(parent.tenantId(), sourceMeasurementId,
+                line.item().measurementItemId(), line.pickedPackageCount()), "主入库测量明细");
+        }
+        requireAffected(splits.markParentPartiallySplit(parent.tenantId(), parentInboundId, childPackageCount,
+            operatorId, parentVersion), "主入库单拆分状态");
+        requireAffected(splits.applyBatch(parent.tenantId(), batchId), "拆分批次生效");
+        requireAffected(splits.insertHistory(IdWorker.getId(), parent.tenantId(), batchId,
+            operationId + "-APPLY", "{\"childInboundId\":" + childId + ",\"packageCount\":"
+                + childPackageCount + "}", operatorId, operatorName, "PDA拣货自动生成子入库单"), "拆分审计");
+
+        allocations.copyRemainingToChild(parent.tenantId(), childId, confirmedAllocations);
+        allocations.markTransferred(parent.tenantId(), parentInboundId, confirmedAllocations,
+            releasedReservationIds);
+        allocations.markReleased(parent.tenantId(), parentInboundId, releasedReservationIds);
+        settleWarehouseResources(parentInboundId, childId, childCode, taskId, operatorId, operatorName,
+            warehouseId, parentAvailable, childPackageCount, releasedReservationIds, transferItems);
+        return true;
+    }
+
+    private static Map<Long, Integer> pickedByInbound(List<LoadingPickItemEntity> taskItems) {
+        return taskItems.stream().filter(item -> "PICKED".equals(item.getItemStatus())
+                || "PARTIAL".equals(item.getItemStatus()))
+            .collect(Collectors.groupingBy(LoadingPickItemEntity::getInboundId,
+                Collectors.summingInt(item -> count(item.getPickedPackageCount(), "PDA已拣箱数"))));
+    }
+
+    private static Map<Long, Integer> pickedByDetail(List<LoadingPickItemEntity> taskItems, long inboundId) {
+        Map<Long, Integer> result = new HashMap<>();
+        for (LoadingPickItemEntity item : taskItems) {
+            if (item.getInboundId() == null || item.getInboundId() != inboundId
+                || !("PICKED".equals(item.getItemStatus()) || "PARTIAL".equals(item.getItemStatus()))) {
+                continue;
+            }
+            if (item.getInboundDetailId() == null) {
+                throw conflict("PDA 已拣明细缺少入库单明细标识");
+            }
+            result.merge(item.getInboundDetailId(), count(item.getPickedPackageCount(), "PDA已拣箱数"), Integer::sum);
+        }
+        return result;
+    }
+
+    private static List<MeasurementSplitLine> measurementLines(List<MeasurementItemRow> measurements,
+                                                                Map<Long, Integer> pickedByDetail) {
+        Set<Long> measuredDetailIds = measurements.stream().map(MeasurementItemRow::inboundDetailId)
+            .collect(Collectors.toSet());
+        if (!measuredDetailIds.containsAll(pickedByDetail.keySet())) {
+            throw conflict("PDA 已拣明细未匹配已审核测量明细");
+        }
+        List<MeasurementSplitLine> result = new ArrayList<>();
+        for (MeasurementItemRow item : measurements) {
+            int measured = count(item.packageCount(), "测量明细箱数");
+            int picked = pickedByDetail.getOrDefault(item.inboundDetailId(), 0);
+            if (picked > measured) {
+                throw conflict("PDA 已拣箱数超过测量明细箱数");
+            }
+            result.add(new MeasurementSplitLine(item, picked, measured - picked));
+        }
+        return result;
+    }
+
+    private void consumePickedAllocations(long accountId, long inboundId,
+                                          List<InboundPalletAllocationEntity> confirmed, int pickedCount) {
+        int toConsume = pickedCount;
+        for (InboundPalletAllocationEntity allocation : confirmed) {
+            int allocated = count(allocation.getAllocatedPackageCount(), "库位已分配箱数");
+            int picked = allocation.getPickedPackageCount() == null ? 0 : allocation.getPickedPackageCount();
+            int available = allocated - picked;
+            if (available <= 0 || toConsume == 0) {
+                continue;
+            }
+            int consumed = Math.min(available, toConsume);
+            if (allocation.getId() == null) {
+                throw conflict("父入库单库位分配快照缺少标识");
+            }
+            allocations.consume(accountId, inboundId, allocation.getId(), consumed);
+            allocation.setPickedPackageCount(picked + consumed);
+            toConsume -= consumed;
+        }
+        if (toConsume != 0) {
+            throw conflict("父入库单已确认库位可用箱数不足以扣减本次已拣箱数");
+        }
+    }
+
+    private static List<Long> releasedReservationIds(List<InboundPalletAllocationEntity> allocations) {
+        return allocations.stream().filter(item -> remaining(item) == 0).map(PdaPickSettlementService::reservationId)
+            .sorted().toList();
+    }
+
+    private static List<WarehousePalletLocationClient.SettlementTransferItem> remainingTransferItems(
+        List<InboundPalletAllocationEntity> allocations) {
+        return allocations.stream().filter(item -> remaining(item) > 0)
+            .map(item -> new WarehousePalletLocationClient.SettlementTransferItem(reservationId(item), remaining(item)))
+            .toList();
+    }
+
+    private static int remaining(InboundPalletAllocationEntity allocation) {
+        return count(allocation.getAllocatedPackageCount(), "库位已分配箱数")
+            - (allocation.getPickedPackageCount() == null ? 0 : allocation.getPickedPackageCount());
+    }
+
+    private static long reservationId(InboundPalletAllocationEntity allocation) {
+        if (allocation.getReservationId() == null || allocation.getReservationId() <= 0) {
+            throw conflict("库位资源缺少唯一reservationId，请先重新确认托盘库位分配");
+        }
+        return allocation.getReservationId();
+    }
+
+    private static long warehouseId(List<InboundPalletAllocationEntity> allocations) {
+        if (allocations.isEmpty() || allocations.get(0).getWarehouseId() == null || allocations.get(0).getWarehouseId() <= 0
+            || allocations.stream().anyMatch(item -> !Objects.equals(allocations.get(0).getWarehouseId(), item.getWarehouseId()))) {
+            throw conflict("PDA结算要求父入库单分配资源属于同一仓库");
+        }
+        return allocations.get(0).getWarehouseId();
+    }
+
+    private void settleWarehouseResources(long parentInboundId, long childInboundId, String childCode,
+                                          long taskId, long operatorId, String operatorName, long warehouseId,
+                                          int sourcePackageCount, int targetPackageCount,
+                                          List<Long> releasedReservationIds,
+                                          List<WarehousePalletLocationClient.SettlementTransferItem> remainingItems) {
+        ApiResponse<WarehousePalletLocationClient.SettlementResult> response;
+        try {
+            response = warehouse.settle(internalToken, new WarehousePalletLocationClient.SettlementRequest(
+                warehouseId, SOURCE_SERVICE, parentInboundId, childInboundId,
+                sourcePackageCount, targetPackageCount, childCode, "PDA-SETTLE-" + taskId + '-' + parentInboundId,
+                operatorId, operatorName, "PDA-SETTLE-" + taskId + '-' + parentInboundId,
+                releasedReservationIds, remainingItems));
+        } catch (FeignException exception) {
+            throw new BizException(ResultCode.SERVICE_UNAVAILABLE, "仓储服务不可用，无法结算PDA库位资源");
+        }
+        if (response == null || !response.successful() || response.data() == null
+            || response.data().released() == null || response.data().transferred() == null
+            || !sameReleasedReservations(releasedReservationIds, response.data().released())
+            || !sameTransferredResources(remainingItems, response.data().transferred())) {
+            ResultCode code = response == null ? ResultCode.SERVICE_UNAVAILABLE : ResultCode.of(response.code());
+            throw new BizException(code, response == null || response.message() == null
+                ? "仓储服务原子结算PDA库位资源失败" : response.message());
+        }
+    }
+
+    private static boolean sameReleasedReservations(List<Long> expected,
+                                                 List<WarehousePalletLocationClient.SelectiveReleaseResult> actual) {
+        return expected.equals(actual.stream().map(WarehousePalletLocationClient.SelectiveReleaseResult::reservationId)
+            .sorted().toList());
+    }
+
+    private static boolean sameTransferredResources(List<WarehousePalletLocationClient.SettlementTransferItem> expected,
+                                                     List<WarehousePalletLocationClient.TransferResult> actual) {
+        Map<Long, Integer> expectedByLocation = expected.stream().collect(Collectors.toMap(
+            WarehousePalletLocationClient.SettlementTransferItem::reservationId,
+            WarehousePalletLocationClient.SettlementTransferItem::remainingPackageCount));
+        Map<Long, Integer> actualByLocation = actual.stream().collect(Collectors.toMap(
+            WarehousePalletLocationClient.TransferResult::reservationId,
+            WarehousePalletLocationClient.TransferResult::remainingPackageCount,
+            (left, right) -> -1));
+        return expectedByLocation.equals(actualByLocation);
+    }
+
+    private static String childInboundCode(String parentCode, long childId) {
+        String prefix = parentCode == null ? "INBOUND" : parentCode.trim();
+        if (prefix.isEmpty()) {
+            prefix = "INBOUND";
+        }
+        String suffix = "-S" + Long.toUnsignedString(childId).substring(0, 6);
+        return prefix.substring(0, Math.min(prefix.length(), 40 - suffix.length())) + suffix;
+    }
+
+    private static int count(Integer value, String resource) {
+        if (value == null || value < 0) {
+            throw conflict(resource + "不合法");
+        }
+        return value;
+    }
+
+    private static void requireAffected(int affected, String resource) {
+        if (affected != 1) {
+            throw conflict(resource + "已被并发修改，请刷新后重试");
+        }
+    }
+
+    private static BizException conflict(String message) {
+        return new BizException(ResultCode.CONFLICT, message);
+    }
+
+    private record MeasurementSplitLine(MeasurementItemRow item, int pickedPackageCount,
+                                        int remainingPackageCount) {
+    }
+
+}
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/service/UnifiedInboundQueryService.java b/firstleg/src/main/java/com/baiyue/firstleg/service/UnifiedInboundQueryService.java
index 3264091bb..117769a02 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/service/UnifiedInboundQueryService.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/service/UnifiedInboundQueryService.java
@@ -28,7 +28,9 @@ import java.util.stream.Collectors;
 @Service
 public class UnifiedInboundQueryService {
     private static final Set<String> MAIN_STATUSES = Set.of(
-        "PENDING_REVIEW", "WAIT_MEASURE", "INBOUNDED", "WAIT_SPLIT", "LOADING", "LOADED", "DELIVERED");
+        "PENDING_REVIEW", "WAIT_MEASURE", "INBOUNDED", "LOADING", "LOADED", "DELIVERED");
+    /** 仅兼容旧客户端筛选值，响应和 OpenAPI 均只使用 INBOUNDED。 */
+    private static final String LEGACY_WAIT_SPLIT = "WAIT_SPLIT";
     private static final Set<String> REVIEW_STATUSES = Set.of("UNRECORDED", "PENDING", "APPROVED", "REJECTED");
 
     @Resource private InboundOrderRepository inbounds;
@@ -134,8 +136,7 @@ public class UnifiedInboundQueryService {
         if (status == null) return null;
         return switch (status) {
             case "WAIT_MEASURE", "MEASURING", "MEASURE_PENDING", "MEASURE_REJECTED" -> "WAIT_MEASURE";
-            case "WAIT_PRICING", "FEE_CONFIRMING", "INBOUNDING", "INBOUNDED" -> "INBOUNDED";
-            case "WAIT_SPLIT" -> "WAIT_SPLIT";
+            case "WAIT_PRICING", "FEE_CONFIRMING", "INBOUNDING", "INBOUNDED", LEGACY_WAIT_SPLIT -> "INBOUNDED";
             case "LOADING", "LOADED", "DELIVERED" -> status;
             default -> null;
         };
@@ -146,10 +147,9 @@ public class UnifiedInboundQueryService {
         return switch (mainStatus) {
             case "PENDING_REVIEW" -> "APPROVE_ORDER";
             case "WAIT_MEASURE" -> "MEASURE_PENDING".equals(processStatus) ? "CONFIRM_MEASUREMENT" : null;
-            case "INBOUNDED" -> !"INBOUNDED".equals(processStatus) ? null
+            case "INBOUNDED" -> !("INBOUNDED".equals(processStatus) || LEGACY_WAIT_SPLIT.equals(processStatus)) ? null
                 : "CONFIRMED".equals(preloadStatus) ? null
                 : preloadStatus == null ? "SMART_SPLIT" : "CONFIRM_PRELOAD";
-            case "WAIT_SPLIT" -> null;
             case "LOADING" -> "COMPLETE_LOADING";
             case "LOADED" -> "COMPLETE_DELIVERY";
             case "DELIVERED" -> null;
@@ -165,8 +165,7 @@ public class UnifiedInboundQueryService {
         if (!StringUtils.hasText(mainStatus)) return List.of();
         return switch (mainStatus) {
             case "WAIT_MEASURE" -> List.of("WAIT_MEASURE", "MEASURING", "MEASURE_PENDING", "MEASURE_REJECTED");
-            case "INBOUNDED" -> List.of("WAIT_PRICING", "FEE_CONFIRMING", "INBOUNDING", "INBOUNDED");
-            case "WAIT_SPLIT" -> List.of("WAIT_SPLIT");
+            case "INBOUNDED", LEGACY_WAIT_SPLIT -> List.of("WAIT_PRICING", "FEE_CONFIRMING", "INBOUNDING", "INBOUNDED", LEGACY_WAIT_SPLIT);
             case "LOADING", "LOADED", "DELIVERED" -> List.of(mainStatus);
             default -> List.of("__NO_MATCH__");
         };
@@ -183,7 +182,9 @@ public class UnifiedInboundQueryService {
     }
 
     private void validate(UnifiedInboundQuery query) {
-        if (StringUtils.hasText(query.mainStatus()) && !MAIN_STATUSES.contains(query.mainStatus())) {
+        if (StringUtils.hasText(query.mainStatus())
+            && !MAIN_STATUSES.contains(query.mainStatus())
+            && !LEGACY_WAIT_SPLIT.equals(query.mainStatus())) {
             throw new com.baiyue.common.core.exception.BizException(
                 com.baiyue.common.core.api.ResultCode.BAD_REQUEST, "统一订单主状态不合法");
         }
diff --git a/firstleg/src/main/resources/db/phase2-inbound-schema.sql b/firstleg/src/main/resources/db/phase2-inbound-schema.sql
index aa594557d..cbc2f1264 100644
--- a/firstleg/src/main/resources/db/phase2-inbound-schema.sql
+++ b/firstleg/src/main/resources/db/phase2-inbound-schema.sql
@@ -646,6 +646,7 @@ CREATE TABLE IF NOT EXISTS fl_inbound_pallet_allocation (
   allocated_package_count INT UNSIGNED NULL COMMENT '本托盘分配箱数',
   location_id BIGINT UNSIGNED NOT NULL COMMENT '仓库服务库位ID',
   location_code VARCHAR(50) NOT NULL COMMENT '库位编码快照',
+  reservation_id BIGINT UNSIGNED NULL COMMENT '仓库预占资源唯一ID，A0共享场景用于区分托盘',
   reservation_no VARCHAR(64) NOT NULL COMMENT '仓库库位预占单号',
   allocation_status VARCHAR(24) NOT NULL DEFAULT 'RESERVED' COMMENT '分配状态',
   created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '创建时间',
@@ -654,6 +655,7 @@ CREATE TABLE IF NOT EXISTS fl_inbound_pallet_allocation (
   UNIQUE KEY uk_pallet_allocation_no (tenant_id, inbound_id, allocation_no),
   UNIQUE KEY uk_pallet_allocation_pallet (tenant_id, inbound_id, pallet_id),
   KEY idx_allocation_location (tenant_id, warehouse_id, location_id, allocation_status),
+  KEY idx_allocation_reservation (reservation_id),
   CONSTRAINT fk_allocation_inbound FOREIGN KEY (inbound_id) REFERENCES fl_inbound_order (id)
 ) ENGINE=InnoDB COMMENT='头程侧托盘、库位和仓库预占结果引用';
 
diff --git a/firstleg/src/main/resources/db/phase3-inbounded-status-unification.sql b/firstleg/src/main/resources/db/phase3-inbounded-status-unification.sql
index 02e365e0b..c7351b090 100644
--- a/firstleg/src/main/resources/db/phase3-inbounded-status-unification.sql
+++ b/firstleg/src/main/resources/db/phase3-inbounded-status-unification.sql
@@ -1,9 +1,10 @@
--- WAIT_SPLIT 是二期当前有效终点。本脚本仅校验兼容结构，禁止改写主表或历史状态。
+-- 二、三期对外统一使用 INBOUNDED。历史 WAIT_SPLIT 仅由查询适配为 INBOUNDED，
+-- 本脚本不改写业务主表或历史状态，避免影响既有审计记录。
 USE baiyue_firstleg;
 
-DROP PROCEDURE IF EXISTS assert_wait_split_compatibility;
+DROP PROCEDURE IF EXISTS assert_inbounded_compatibility;
 DELIMITER $$
-CREATE PROCEDURE assert_wait_split_compatibility()
+CREATE PROCEDURE assert_inbounded_compatibility()
 BEGIN
   IF (SELECT COUNT(*) FROM information_schema.columns
        WHERE table_schema = 'baiyue_firstleg' AND table_name = 'fl_inbound_order'
@@ -12,9 +13,9 @@ BEGIN
           WHERE table_schema = 'baiyue_firstleg' AND table_name = 'fl_inbound_status_history'
             AND column_name IN ('from_status', 'to_status')) <> 2 THEN
     SIGNAL SQLSTATE '45000'
-      SET MESSAGE_TEXT = 'WAIT_SPLIT 兼容校验失败：入库状态字段不完整';
+      SET MESSAGE_TEXT = 'INBOUNDED 兼容校验失败：入库状态字段不完整';
   END IF;
 END$$
 DELIMITER ;
-CALL assert_wait_split_compatibility();
-DROP PROCEDURE assert_wait_split_compatibility;
+CALL assert_inbounded_compatibility();
+DROP PROCEDURE assert_inbounded_compatibility;
diff --git a/firstleg/src/main/resources/db/phase3-pda-release-allocation-migration.sql b/firstleg/src/main/resources/db/phase3-pda-release-allocation-migration.sql
new file mode 100644
index 000000000..88265b5ed
--- /dev/null
+++ b/firstleg/src/main/resources/db/phase3-pda-release-allocation-migration.sql
@@ -0,0 +1,37 @@
+-- 三期 PDA 部分拣货释放策略与 A0 共享资源唯一标识。
+SET NAMES utf8mb4;
+
+DROP PROCEDURE IF EXISTS phase3_pda_add_column;
+DELIMITER $$
+CREATE PROCEDURE phase3_pda_add_column(IN p_table VARCHAR(64), IN p_column VARCHAR(64), IN p_ddl TEXT)
+BEGIN
+  IF NOT EXISTS (
+    SELECT 1 FROM information_schema.columns
+     WHERE table_schema = DATABASE() AND table_name = p_table AND column_name = p_column
+  ) THEN
+    SET @phase3_pda_ddl = CONCAT('ALTER TABLE `', p_table, '` ADD COLUMN ', p_ddl);
+    PREPARE phase3_pda_stmt FROM @phase3_pda_ddl;
+    EXECUTE phase3_pda_stmt;
+    DEALLOCATE PREPARE phase3_pda_stmt;
+  END IF;
+END$$
+DELIMITER ;
+
+CALL phase3_pda_add_column('fl_loading_pick_item', 'release_mode',
+  '`release_mode` VARCHAR(10) NULL COMMENT ''AUTO按比例释放，MANUAL按人工选择释放'' AFTER `item_status`');
+CALL phase3_pda_add_column('fl_loading_pick_item', 'release_location_ids',
+  '`release_location_ids` JSON NULL COMMENT ''人工选择释放库位ID；空数组表示明确释放0个'' AFTER `release_mode`');
+CALL phase3_pda_add_column('fl_inbound_pallet_allocation', 'reservation_id',
+  '`reservation_id` BIGINT UNSIGNED NULL COMMENT ''仓库预占资源唯一ID，A0共享场景用于区分托盘'' AFTER `location_code`');
+
+SET @phase3_pda_index_ddl = IF(
+  EXISTS (SELECT 1 FROM information_schema.statistics
+           WHERE table_schema = DATABASE() AND table_name = 'fl_inbound_pallet_allocation'
+             AND index_name = 'idx_allocation_reservation'),
+  'SELECT 1',
+  'ALTER TABLE fl_inbound_pallet_allocation ADD INDEX idx_allocation_reservation (reservation_id)');
+PREPARE phase3_pda_index_stmt FROM @phase3_pda_index_ddl;
+EXECUTE phase3_pda_index_stmt;
+DEALLOCATE PREPARE phase3_pda_index_stmt;
+
+DROP PROCEDURE IF EXISTS phase3_pda_add_column;
diff --git a/firstleg/src/main/resources/db/phase3-smart-loading-schema.sql b/firstleg/src/main/resources/db/phase3-smart-loading-schema.sql
index b6de06d60..dc2d3194c 100644
--- a/firstleg/src/main/resources/db/phase3-smart-loading-schema.sql
+++ b/firstleg/src/main/resources/db/phase3-smart-loading-schema.sql
@@ -429,6 +429,8 @@ CREATE TABLE IF NOT EXISTS fl_loading_pick_item (
   planned_package_count INT UNSIGNED NOT NULL COMMENT '计划拣货箱数；上层拆分按业务规则向上取整',
   picked_package_count INT UNSIGNED NOT NULL DEFAULT 0 COMMENT '已拣货箱数',
   item_status VARCHAR(16) NOT NULL DEFAULT 'PENDING' COMMENT 'PENDING、PICKING、PICKED、PARTIAL、SKIPPED',
+  release_mode VARCHAR(10) NULL COMMENT 'AUTO按比例释放，MANUAL按人工选择释放',
+  release_location_ids JSON NULL COMMENT '人工选择释放库位ID；空数组表示明确释放0个',
   version INT UNSIGNED NOT NULL DEFAULT 0 COMMENT '乐观锁版本号',
   created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
   updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
diff --git a/firstleg/src/main/resources/openapi/firstleg-v1.yaml b/firstleg/src/main/resources/openapi/firstleg-v1.yaml
index 07d9e8aa6..7a97f1d3c 100644
--- a/firstleg/src/main/resources/openapi/firstleg-v1.yaml
+++ b/firstleg/src/main/resources/openapi/firstleg-v1.yaml
@@ -438,7 +438,7 @@ paths:
   /api/merchant/v1/first-leg/orders/{orderId}/inbound-billing:
     get:
       summary: 客户查询已完成入库结果和最新已发布费用
-      description: 需要 merchant:order:view 权限；客户只读查看，不需要确认费用，仅 WAIT_SPLIT + APPROVED + CONFIRMED 的二期终态可见。
+      description: 需要 merchant:order:view 权限；客户只读查看，不需要确认费用，仅 INBOUNDED + APPROVED + CONFIRMED 的二期终态可见。
       parameters:
         - {name: orderId, in: path, required: true, schema: {type: string, pattern: '^[1-9][0-9]*$'}}
       responses:
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/controller/InboundOrderControllerContractTest.java b/firstleg/src/test/java/com/baiyue/firstleg/controller/InboundOrderControllerContractTest.java
index cf1b61443..e3eb38edd 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/controller/InboundOrderControllerContractTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/controller/InboundOrderControllerContractTest.java
@@ -54,7 +54,7 @@ class InboundOrderControllerContractTest {
             .contains("[WAIT_MEASURE, WAIT_REVIEW, WAIT_FEE_SEND, INBOUNDED]")
             .contains("platform:firstleg:inbound:list")
             .doesNotContain("WAIT_CUSTOMER_CONFIRM")
-            .contains("WAIT_SPLIT");
+            .doesNotContain("WAIT_SPLIT");
         assertThat(inboundList).contains("#/components/schemas/InboundOrderPageEnvelope");
         assertThat(taskList).doesNotContain("InboundOrderPageEnvelope");
     }
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/controller/MerchantInboundBillingControllerContractTest.java b/firstleg/src/test/java/com/baiyue/firstleg/controller/MerchantInboundBillingControllerContractTest.java
index f360beaec..278bc4f99 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/controller/MerchantInboundBillingControllerContractTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/controller/MerchantInboundBillingControllerContractTest.java
@@ -38,7 +38,7 @@ class MerchantInboundBillingControllerContractTest {
         String openapi = new ClassPathResource("openapi/firstleg-v1.yaml")
             .getContentAsString(StandardCharsets.UTF_8);
         assertThat(openapi).contains("/api/merchant/v1/first-leg/orders/{orderId}/inbound-billing:")
-            .contains("仅 WAIT_SPLIT + APPROVED + CONFIRMED 的二期终态可见");
+            .contains("INBOUNDED + APPROVED + CONFIRMED");
     }
 
     @Test
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/repository/InboundStatusUnificationSqlContractTest.java b/firstleg/src/test/java/com/baiyue/firstleg/repository/InboundStatusUnificationSqlContractTest.java
index 985e99b7b..b37801b5f 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/repository/InboundStatusUnificationSqlContractTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/repository/InboundStatusUnificationSqlContractTest.java
@@ -11,18 +11,18 @@ import static org.assertj.core.api.Assertions.assertThat;
 
 class InboundStatusUnificationSqlContractTest {
     @Test
-    void preservesWaitSplitWithoutDataRewrite() throws Exception {
+    void preservesHistoricalWaitSplitWithoutDataRewrite() throws Exception {
         String module = normalize(new ClassPathResource("db/phase3-inbounded-status-unification.sql")
             .getContentAsString(StandardCharsets.UTF_8)).trim();
         String unified = normalize(Files.readString(unifiedPath(), StandardCharsets.UTF_8));
 
         assertThat(module)
-            .contains("CREATE PROCEDURE assert_wait_split_compatibility()")
-            .contains("WAIT_SPLIT 是二期当前有效终点")
+            .contains("CREATE PROCEDURE assert_inbounded_compatibility()")
+            .contains("二、三期对外统一使用 INBOUNDED")
             .doesNotContain("UPDATE fl_inbound_order")
             .doesNotContain("UPDATE fl_inbound_status_history");
         assertThat(unified)
-            .contains("WAIT_SPLIT 是二期当前有效终点；统一迁移不得改写主表或历史状态")
+            .contains("二、三期对外统一使用 INBOUNDED")
             .doesNotContain("SET process_status = 'INBOUNDED'")
             .doesNotContain("SET from_status = 'INBOUNDED'")
             .doesNotContain("SET to_status = 'INBOUNDED'");
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/repository/LoadingPickItemMapperContractTest.java b/firstleg/src/test/java/com/baiyue/firstleg/repository/LoadingPickItemMapperContractTest.java
index 6d88da5f5..26bd31ac1 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/repository/LoadingPickItemMapperContractTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/repository/LoadingPickItemMapperContractTest.java
@@ -37,7 +37,8 @@ class LoadingPickItemMapperContractTest {
     @Test
     void pdaWritesAndReadsRequireWarehouseScope() throws Exception {
         Method list = LoadingPickItemMapper.class.getDeclaredMethod("selectTaskItemsWithAccount", long.class, long.class);
-        Method pick = LoadingPickItemMapper.class.getDeclaredMethod("pick", long.class, int.class, int.class, long.class);
+        Method pick = LoadingPickItemMapper.class.getDeclaredMethod("pick", long.class, int.class,
+            String.class, String.class, int.class, long.class);
 
         assertThat(list.getAnnotation(Select.class).value()[0])
             .contains("booking.warehouse_id = #{warehouseId}")
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/service/InboundOrderQueryServiceTest.java b/firstleg/src/test/java/com/baiyue/firstleg/service/InboundOrderQueryServiceTest.java
index f7a94a2c5..1681b5eb1 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/service/InboundOrderQueryServiceTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/service/InboundOrderQueryServiceTest.java
@@ -41,8 +41,8 @@ class InboundOrderQueryServiceTest {
     }
 
     @Test
-    void shouldAcceptCurrentPhase2TerminalStatusFilters() {
-        InboundOrderQuery query = new InboundOrderQuery(null, null, "WAIT_SPLIT", null,
+    void shouldAcceptInboundedAsThePhase2TerminalStatusFilter() {
+        InboundOrderQuery query = new InboundOrderQuery(null, null, "INBOUNDED", null,
             "APPROVED", "CONFIRMED", null, null, null, null, null, null, null,
             null, null, null, null, 1, 200);
         PageResult<InboundOrderSummary> expected = new PageResult<>(List.of(), 1, 200, 0, 0);
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/service/LoadingPickServiceTest.java b/firstleg/src/test/java/com/baiyue/firstleg/service/LoadingPickServiceTest.java
index 7a3028749..e46e64e7f 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/service/LoadingPickServiceTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/service/LoadingPickServiceTest.java
@@ -1,23 +1,27 @@
 package com.baiyue.firstleg.service;
 
-import com.baiyue.firstleg.dto.LoadingPickDtos.PickRequest;
+import com.baiyue.common.core.exception.BizException;
 import com.baiyue.firstleg.dto.LoadingPickDtos.PartialPickRequest;
-import com.baiyue.firstleg.dto.LoadingPickDtos.SkipRequest;
+import com.baiyue.firstleg.dto.LoadingPickDtos.PickRequest;
 import com.baiyue.firstleg.dto.LoadingPickDtos.ReviewRequest;
-import com.baiyue.firstleg.entity.LoadingPickHistoryEntity;
-import com.baiyue.firstleg.entity.LoadingPickOperationEntity;
+import com.baiyue.firstleg.dto.LoadingPickDtos.SkipRequest;
 import com.baiyue.firstleg.entity.LoadingPickAssignmentEntity;
+import com.baiyue.firstleg.entity.LoadingPickHistoryEntity;
 import com.baiyue.firstleg.entity.LoadingPickItemEntity;
+import com.baiyue.firstleg.entity.LoadingPickOperationEntity;
 import com.baiyue.firstleg.entity.LoadingPickTaskEntity;
 import com.baiyue.firstleg.repository.LoadingPickRepository;
 import jakarta.annotation.Resource;
 import org.junit.jupiter.api.Test;
+import org.mockito.InOrder;
 import org.springframework.boot.test.mock.mockito.MockBean;
 import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
 
 import java.util.List;
 
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.inOrder;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
@@ -28,6 +32,8 @@ class LoadingPickServiceTest {
     private LoadingPickRepository repository;
     @MockBean
     private LoadingListService loadingListService;
+    @MockBean
+    private PdaPickSettlementService settlementService;
     @Resource
     private LoadingPickService service;
 
@@ -35,78 +41,77 @@ class LoadingPickServiceTest {
     void keepsPlanLoadingWhenItemsRemain() {
         LoadingPickTaskEntity task = task();
         LoadingPickItemEntity item = item();
-        when(repository.history("pick-1")).thenReturn(null);
-        when(repository.task(20L)).thenReturn(task);
-        when(repository.taskForUpdate(20L)).thenReturn(task);
-        when(repository.assignment(20L)).thenReturn(assignment());
-        when(repository.item(20L, 30L, 101L)).thenReturn(item);
-        when(repository.pick(30L, 2, 0, 101L)).thenReturn(1);
-        when(repository.allPlanItemsPicked(10L)).thenReturn(false);
-        when(repository.touchTask(20L, 0)).thenReturn(1);
-        when(repository.items(20L, 101L)).thenReturn(List.of(item));
+        preparePick(task, item, "pick-1");
+        when(repository.allTaskItemsResolved(20L)).thenReturn(false);
 
         service.pick(20L, 30L, new PickRequest(101L, 2, List.of(), 0, "pick-1"), 9L, "operator");
 
+        verify(repository).touchTask(20L, 0);
+        verify(repository).syncInboundProjections(20L, 9L, "operator");
+        verify(settlementService, never()).settle(20L, 9L, "operator");
         verify(loadingListService, never()).finishFromPda(10L, 20L, 9L, "operator");
     }
 
     @Test
-    void completesPlanWhenLastItemIsPicked() {
+    void touchesTaskBeforeCompletingLastPickedItem() {
         LoadingPickTaskEntity task = task();
         LoadingPickItemEntity item = item();
-        when(repository.history("pick-2")).thenReturn(null);
-        when(repository.task(20L)).thenReturn(task);
-        when(repository.taskForUpdate(20L)).thenReturn(task);
-        when(repository.assignment(20L)).thenReturn(assignment());
-        when(repository.item(20L, 30L, 101L)).thenReturn(item);
-        when(repository.pick(30L, 2, 0, 101L)).thenReturn(1);
-        when(repository.items(20L, 101L)).thenReturn(List.of(item));
-        when(repository.touchTask(20L, 0)).thenReturn(1);
+        preparePick(task, item, "pick-2");
+        when(repository.allTaskItemsResolved(20L)).thenReturn(true);
+        when(repository.allPlanItemsPicked(10L)).thenReturn(true);
 
         service.pick(20L, 30L, new PickRequest(101L, 2, List.of(), 0, "pick-2"), 9L, "operator");
 
-        verify(loadingListService, never()).finishFromPda(10L, 20L, 9L, "operator");
+        InOrder order = inOrder(repository, settlementService, loadingListService);
+        order.verify(repository).touchTask(20L, 0);
+        order.verify(settlementService).settle(20L, 9L, "operator");
+        order.verify(loadingListService).finishFromPda(10L, 20L, 9L, "operator");
+        order.verify(repository).syncInboundProjections(20L, 9L, "operator");
         verify(repository).insert(any(LoadingPickHistoryEntity.class));
     }
 
     @Test
-    void completesPlanWhenLastItemIsPartiallyPicked() {
+    void touchesTaskBeforeCompletingLastPartialItem() {
         LoadingPickTaskEntity task = task();
         LoadingPickItemEntity item = item();
-        when(repository.history("partial-1")).thenReturn(null);
-        when(repository.task(20L)).thenReturn(task);
-        when(repository.taskForUpdate(20L)).thenReturn(task);
-        when(repository.assignment(20L)).thenReturn(assignment());
-        when(repository.item(20L, 30L, 101L)).thenReturn(item);
-        when(repository.partial(30L, 1, 0, 101L)).thenReturn(1);
-        when(repository.items(20L, 101L)).thenReturn(List.of(item));
-        when(repository.touchTask(20L, 0)).thenReturn(1);
+        preparePartial(task, item, "partial-1");
+        when(repository.allTaskItemsResolved(20L)).thenReturn(true);
+        when(repository.allPlanItemsPicked(10L)).thenReturn(true);
 
-        service.partial(20L, 30L, new PartialPickRequest(101L, 1, List.of(), 0, "partial-1"), 9L, "operator");
+        service.partial(20L, 30L, new PartialPickRequest(101L, 1, List.of(), 0, "partial-1"),
+            9L, "operator");
 
-        verify(loadingListService, never()).finishFromPda(10L, 20L, 9L, "operator");
+        InOrder order = inOrder(repository, settlementService, loadingListService);
+        order.verify(repository).touchTask(20L, 0);
+        order.verify(settlementService).settle(20L, 9L, "operator");
+        order.verify(loadingListService).finishFromPda(10L, 20L, 9L, "operator");
+        order.verify(repository).syncInboundProjections(20L, 9L, "operator");
     }
 
     @Test
-    void completesPlanWhenLastItemIsSkipped() {
+    void rejectsSkipWhenInboundAlreadyHasPickedItem() {
         LoadingPickTaskEntity task = task();
-        LoadingPickItemEntity item = item();
+        LoadingPickItemEntity skipped = item();
+        LoadingPickItemEntity picked = item();
+        picked.setId(31L);
+        picked.setItemStatus("PICKED");
+        picked.setPickedPackageCount(2);
         when(repository.history("skip-1")).thenReturn(null);
-        when(repository.task(20L)).thenReturn(task);
         when(repository.taskForUpdate(20L)).thenReturn(task);
         when(repository.assignment(20L)).thenReturn(assignment());
-        when(repository.item(20L, 30L, 101L)).thenReturn(item);
-        when(repository.skip(30L, 0, 101L)).thenReturn(1);
-        when(repository.items(20L, 101L)).thenReturn(List.of(item));
-        when(repository.touchTask(20L, 0)).thenReturn(1);
+        when(repository.item(20L, 30L, 101L)).thenReturn(skipped);
+        when(repository.hasPickedOrPartialItem(20L, 50L)).thenReturn(true);
 
-        service.skip(20L, 30L, new SkipRequest(101L, 0, "skip-1", "fixture unavailable"), 9L, "operator");
+        assertThatThrownBy(() -> service.skip(20L, 30L,
+            new SkipRequest(101L, 0, "skip-1", "fixture unavailable"), 9L, "operator"))
+            .isInstanceOf(BizException.class);
 
-        verify(loadingListService, never()).finishFromPda(10L, 20L, 9L, "operator");
+        verify(repository, never()).skip(30L, 0, 101L);
+        verify(settlementService, never()).settle(20L, 9L, "operator");
     }
 
     @Test
-    void reviewSettlesPartialItemsBeforeCompletingPlan() {
+    void reviewSettlesResolvedItemsAndCompletesPlan() {
         LoadingPickTaskEntity task = task();
         LoadingPickItemEntity item = item();
         item.setPlannedPackageCount(5);
@@ -115,6 +120,7 @@ class LoadingPickServiceTest {
         when(repository.taskForUpdate(20L)).thenReturn(task);
         when(repository.task(20L)).thenReturn(task);
         when(repository.items(20L)).thenReturn(List.of(item));
+        when(repository.items(20L, 101L)).thenReturn(List.of(item));
         when(repository.settlePartial(40L, 30L, 3, 5, 9L, "operator")).thenReturn(1);
         when(repository.allPlanItemsPicked(10L)).thenReturn(true);
         when(repository.approve(20L, 9L, "operator", "checked")).thenReturn(1);
@@ -123,9 +129,32 @@ class LoadingPickServiceTest {
 
         verify(repository).insert(any(LoadingPickOperationEntity.class));
         verify(loadingListService).finishFromPda(10L, 20L, 9L, "operator");
+        verify(settlementService, never()).settle(20L, 9L, "operator");
         verify(repository).syncInboundProjections(20L, 9L, "operator");
     }
 
+    private void preparePick(LoadingPickTaskEntity task, LoadingPickItemEntity item, String operationId) {
+        when(repository.history(operationId)).thenReturn(null);
+        when(repository.task(20L)).thenReturn(task);
+        when(repository.taskForUpdate(20L)).thenReturn(task);
+        when(repository.assignment(20L)).thenReturn(assignment());
+        when(repository.item(20L, 30L, 101L)).thenReturn(item);
+        when(repository.pick(30L, 2, "MANUAL", "[]", 0, 101L)).thenReturn(1);
+        when(repository.touchTask(20L, 0)).thenReturn(1);
+        when(repository.items(20L, 101L)).thenReturn(List.of(item));
+    }
+
+    private void preparePartial(LoadingPickTaskEntity task, LoadingPickItemEntity item, String operationId) {
+        when(repository.history(operationId)).thenReturn(null);
+        when(repository.task(20L)).thenReturn(task);
+        when(repository.taskForUpdate(20L)).thenReturn(task);
+        when(repository.assignment(20L)).thenReturn(assignment());
+        when(repository.item(20L, 30L, 101L)).thenReturn(item);
+        when(repository.partial(30L, 1, "MANUAL", "[]", 0, 101L)).thenReturn(1);
+        when(repository.touchTask(20L, 0)).thenReturn(1);
+        when(repository.items(20L, 101L)).thenReturn(List.of(item));
+    }
+
     private static LoadingPickTaskEntity task() {
         LoadingPickTaskEntity task = new LoadingPickTaskEntity();
         task.setId(20L);
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/service/MerchantInboundBillingServiceTest.java b/firstleg/src/test/java/com/baiyue/firstleg/service/MerchantInboundBillingServiceTest.java
index a01cd91b6..f624e6982 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/service/MerchantInboundBillingServiceTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/service/MerchantInboundBillingServiceTest.java
@@ -36,7 +36,7 @@ class MerchantInboundBillingServiceTest {
 
     @Test
     void shouldHandleCase01() {
-        InboundOrderEntity inbound = inbound("WAIT_SPLIT", "APPROVED", "CONFIRMED");
+        InboundOrderEntity inbound = inbound("INBOUNDED", "APPROVED", "CONFIRMED");
         InboundOrderDetail detail = new InboundOrderDetail(mock(com.baiyue.firstleg.dto.InboundOrderSummary.class),
             "客户备注", List.of(), List.of(
                 new InboundOrderDetail.FileSummary(1L, "RELATED", "public.pdf", "PUBLIC", 1, 1L, null),
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/service/PdaPickSettlementServiceTest.java b/firstleg/src/test/java/com/baiyue/firstleg/service/PdaPickSettlementServiceTest.java
new file mode 100644
index 000000000..e46064a9e
--- /dev/null
+++ b/firstleg/src/test/java/com/baiyue/firstleg/service/PdaPickSettlementServiceTest.java
@@ -0,0 +1,206 @@
+package com.baiyue.firstleg.service;
+
+import com.baiyue.common.core.api.ApiResponse;
+import com.baiyue.firstleg.client.WarehousePalletLocationClient;
+import com.baiyue.firstleg.entity.InboundPalletAllocationEntity;
+import com.baiyue.firstleg.entity.LoadingPickItemEntity;
+import com.baiyue.firstleg.mapper.InboundSplitSettlementMapper;
+import com.baiyue.firstleg.mapper.InboundSplitSettlementMapper.MeasurementItemRow;
+import com.baiyue.firstleg.mapper.InboundSplitSettlementMapper.ParentRow;
+import com.baiyue.firstleg.repository.InboundPalletAllocationRepository;
+import com.baiyue.firstleg.repository.LoadingPickRepository;
+import jakarta.annotation.Resource;
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.test.context.TestPropertySource;
+import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
+
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyLong;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+@SpringJUnitConfig(PdaPickSettlementService.class)
+@TestPropertySource(properties = "baiyue.security.internal-service-token=internal-token")
+class PdaPickSettlementServiceTest {
+    @MockBean private LoadingPickRepository picks;
+    @MockBean private InboundSplitSettlementMapper splits;
+    @MockBean private InboundPalletAllocationRepository allocations;
+    @MockBean private WarehousePalletLocationClient warehouse;
+    @Resource private PdaPickSettlementService service;
+
+    @Test
+    void createsChildForAllUnloadedPackagesAndTransfersRemainingAllocations() {
+        LoadingPickItemEntity item = item(11L, 21L, 31L, 41L, 10, 8, "PARTIAL");
+        resolved(List.of(item));
+        when(splits.lockParent(31L)).thenReturn(parent(20));
+        when(splits.childId(10001L, 31L)).thenReturn(null);
+        when(splits.lockLatestApprovedItemsForInbound(10001L, 31L))
+            .thenReturn(List.of(new MeasurementItemRow(51L, 61L, 41L, 20)));
+        when(allocations.lockConfirmed(10001L, 31L))
+            .thenReturn(List.of(allocation(1L, 1, 501L, 10), allocation(2L, 2, 502L, 10)));
+        when(warehouse.settle(eq("internal-token"), any())).thenReturn(ApiResponse.success(
+            new WarehousePalletLocationClient.SettlementResult(List.of(), List.of(
+                transfer(1, 501L, 2), transfer(2, 502L, 10)))));
+        writes(12, 8);
+
+        service.settle(1L, 9L, "operator");
+
+        verify(splits).cloneChild(eq(10001L), eq(31L), anyLong(), anyString(), eq(12), eq(9L), eq("operator"));
+        verify(splits).updateSourceMeasurementPackageCount(10001L, 31L, 61L, 8);
+        verify(splits).updateSourceMeasurementItemPackageCount(10001L, 61L, 51L, 8);
+        verify(allocations).consume(10001L, 31L, 1L, 8);
+        verify(warehouse).settle(eq("internal-token"), org.mockito.ArgumentMatchers.argThat(request ->
+            request.warehouseId() == 701L && request.sourceBusinessId() == 31L
+                && request.idempotencyKey().equals("PDA-SETTLE-1-31")
+                && request.releasedReservationIds().isEmpty()
+                && request.remainingItems().equals(List.of(new WarehousePalletLocationClient.SettlementTransferItem(91L, 2),
+                    new WarehousePalletLocationClient.SettlementTransferItem(92L, 10)))));
+        verify(allocations).copyRemainingToChild(eq(10001L), anyLong(), any());
+        verify(allocations).markTransferred(eq(10001L), eq(31L), any(), eq(List.of()));
+        verify(splits).convergePartialPlanItem(21L, 9L, "operator");
+    }
+
+    @Test
+    void repeatedSettleWithExistingChildDoesNotConsumeOrTransferAgain() {
+        LoadingPickItemEntity item = item(11L, 21L, 31L, 41L, 10, 6, "PARTIAL");
+        resolved(List.of(item));
+        when(splits.lockParent(31L)).thenReturn(parent(10));
+        when(splits.childId(10001L, 31L)).thenReturn(71L);
+
+        service.settle(1L, 9L, "operator");
+
+        verify(warehouse, never()).settle(anyString(), any());
+        verify(splits, never()).convergePartialPlanItem(anyLong(), anyLong(), anyString());
+    }
+
+    @Test
+    void releasesFullyPickedAllocationBeforeTransferringChildResources() {
+        LoadingPickItemEntity item = item(11L, 21L, 31L, 41L, 10, 10, "PICKED");
+        resolved(List.of(item));
+        when(splits.lockParent(31L)).thenReturn(parent(20));
+        when(splits.childId(10001L, 31L)).thenReturn(null);
+        when(splits.lockLatestApprovedItemsForInbound(10001L, 31L))
+            .thenReturn(List.of(new MeasurementItemRow(51L, 61L, 41L, 20)));
+        when(allocations.lockConfirmed(10001L, 31L))
+            .thenReturn(List.of(allocation(1L, 1, 501L, 10), allocation(2L, 2, 502L, 10)));
+        when(warehouse.settle(eq("internal-token"), any())).thenReturn(ApiResponse.success(
+            new WarehousePalletLocationClient.SettlementResult(List.of(released(91L, 501L)),
+                List.of(transfer(2, 502L, 10)))));
+        writes(10, 10);
+
+        service.settle(1L, 9L, "operator");
+
+        verify(warehouse).settle(eq("internal-token"), org.mockito.ArgumentMatchers.argThat(request ->
+            request.idempotencyKey().equals("PDA-SETTLE-1-31")
+                && request.releasedReservationIds().equals(List.of(91L))
+                && request.remainingItems().equals(List.of(new WarehousePalletLocationClient.SettlementTransferItem(92L, 10)))));
+    }
+
+    @Test
+    void fullyPickedInboundReleasesAllResourcesWithoutCreatingChild() {
+        LoadingPickItemEntity item = item(11L, 21L, 31L, 41L, 20, 20, "PICKED");
+        resolved(List.of(item));
+        when(splits.lockParent(31L)).thenReturn(parent(20));
+        when(splits.childId(10001L, 31L)).thenReturn(null);
+        when(allocations.lockConfirmed(10001L, 31L))
+            .thenReturn(List.of(allocation(1L, 1, 501L, 10), allocation(2L, 2, 502L, 10)));
+        when(warehouse.settle(eq("internal-token"), any())).thenReturn(ApiResponse.success(
+            new WarehousePalletLocationClient.SettlementResult(List.of(released(91L, 501L), released(92L, 502L)),
+                List.of())));
+
+        service.settle(1L, 9L, "operator");
+
+        verify(allocations).consume(10001L, 31L, 1L, 10);
+        verify(allocations).consume(10001L, 31L, 2L, 10);
+        verify(splits, never()).cloneChild(anyLong(), anyLong(), anyLong(), anyString(), anyInt(), anyLong(), anyString());
+        verify(warehouse).settle(eq("internal-token"), org.mockito.ArgumentMatchers.argThat(request ->
+            request.targetBusinessId() == 0L && request.targetPackageCount() == 0
+                && request.releasedReservationIds().equals(List.of(91L, 92L))
+                && request.remainingItems().isEmpty()));
+    }
+
+    @Test
+    void onlyPureSkippedInboundRestoresCandidate() {
+        LoadingPickItemEntity item = item(12L, 22L, 32L, 42L, 8, 0, "SKIPPED");
+        resolved(List.of(item));
+        when(splits.removeSkippedPlanItem(22L, 9L, "operator")).thenReturn(1);
+
+        service.settle(1L, 9L, "operator");
+
+        verify(splits).removeSkippedPlanItem(22L, 9L, "operator");
+    }
+
+    @Test
+    void mixedSkippedInboundIsNotRestored() {
+        LoadingPickItemEntity picked = item(11L, 21L, 31L, 41L, 8, 8, "PICKED");
+        LoadingPickItemEntity skipped = item(12L, 22L, 31L, 42L, 8, 0, "SKIPPED");
+
+        PdaPickSettlementPlan.Resolution resolution = PdaPickSettlementPlan.resolve(List.of(picked, skipped));
+
+        assertThat(resolution.skippedPlanItemIds()).isEmpty();
+    }
+
+    private void resolved(List<LoadingPickItemEntity> items) {
+        when(picks.allTaskItemsResolved(1L)).thenReturn(true);
+        when(picks.items(1L)).thenReturn(items);
+    }
+
+    private void writes(int childCount, int pickedCount) {
+        when(splits.cloneChild(eq(10001L), eq(31L), anyLong(), anyString(), eq(childCount), eq(9L), eq("operator")))
+            .thenReturn(1);
+        when(splits.insertBatch(anyLong(), eq(10001L), eq(31L), anyString(), anyString(), eq(3),
+            eq(childCount), anyString(), eq(9L), eq("operator"))).thenReturn(1);
+        when(splits.cloneMeasurement(eq(10001L), eq(31L), eq(61L), anyLong(), anyLong(), anyLong(),
+            eq(childCount), eq(9L))).thenReturn(1);
+        when(splits.insertSplitItem(anyLong(), eq(10001L), anyLong(), eq(31L), anyLong(), eq(1),
+            eq(41L), eq(61L), eq(51L), eq(childCount))).thenReturn(1);
+        when(splits.cloneMeasurementItem(eq(10001L), eq(61L), eq(51L), anyLong(), anyLong(), anyLong(),
+            eq(1), eq(childCount))).thenReturn(1);
+        when(splits.updateSourceMeasurementPackageCount(10001L, 31L, 61L, pickedCount)).thenReturn(1);
+        when(splits.updateSourceMeasurementItemPackageCount(10001L, 61L, 51L, pickedCount)).thenReturn(1);
+        when(splits.markParentPartiallySplit(10001L, 31L, childCount, 9L, 3)).thenReturn(1);
+        when(splits.applyBatch(eq(10001L), anyLong())).thenReturn(1);
+        when(splits.insertHistory(anyLong(), eq(10001L), anyLong(), anyString(), anyString(), eq(9L),
+            eq("operator"), anyString())).thenReturn(1);
+        when(splits.convergePartialPlanItem(21L, 9L, "operator")).thenReturn(1);
+    }
+
+    private static ParentRow parent(int packageCount) {
+        return new ParentRow(31L, 10001L, "IN-001", "MASTER", "INBOUNDED", packageCount, packageCount, 3);
+    }
+
+    private static InboundPalletAllocationEntity allocation(long id, int no, long locationId, int allocated) {
+        InboundPalletAllocationEntity value = new InboundPalletAllocationEntity();
+        value.setId(id); value.setAllocationNo(no); value.setLocationId(locationId); value.setWarehouseId(701L);
+        value.setReservationId(90L + no);
+        value.setAllocatedPackageCount(allocated); value.setPickedPackageCount(0);
+        return value;
+    }
+
+    private static WarehousePalletLocationClient.TransferResult transfer(int no, long locationId, int remaining) {
+        return new WarehousePalletLocationClient.TransferResult(90L + no, "RES-" + no, 92L + no, no,
+            0L, 701L, 801L + no, "PALLET-" + no, null, locationId, "L-" + no, null, remaining, "OCCUPIED");
+    }
+
+    private static WarehousePalletLocationClient.SelectiveReleaseResult released(long reservationId, long locationId) {
+        return new WarehousePalletLocationClient.SelectiveReleaseResult(reservationId, 92L, 1, 801L,
+            locationId, "L-1", 10);
+    }
+
+    private static LoadingPickItemEntity item(long id, long planItemId, long inboundId, long detailId,
+                                              int planned, int picked, String status) {
+        LoadingPickItemEntity value = new LoadingPickItemEntity();
+        value.setId(id); value.setLoadingPlanItemId(planItemId); value.setInboundId(inboundId);
+        value.setInboundDetailId(detailId); value.setPlannedPackageCount(planned);
+        value.setPickedPackageCount(picked); value.setItemStatus(status);
+        return value;
+    }
+}
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/service/UnifiedInboundQueryServiceTest.java b/firstleg/src/test/java/com/baiyue/firstleg/service/UnifiedInboundQueryServiceTest.java
index 9a6d6d84f..32f13b509 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/service/UnifiedInboundQueryServiceTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/service/UnifiedInboundQueryServiceTest.java
@@ -31,7 +31,7 @@ class UnifiedInboundQueryServiceTest {
         assertThat(UnifiedInboundQueryService.mainStatus("WAIT_PRICING")).isEqualTo("INBOUNDED");
         assertThat(UnifiedInboundQueryService.mainStatus("FEE_CONFIRMING")).isEqualTo("INBOUNDED");
         assertThat(UnifiedInboundQueryService.mainStatus("INBOUNDING")).isEqualTo("INBOUNDED");
-        assertThat(UnifiedInboundQueryService.mainStatus("WAIT_SPLIT")).isEqualTo("WAIT_SPLIT");
+        assertThat(UnifiedInboundQueryService.mainStatus("WAIT_SPLIT")).isEqualTo("INBOUNDED");
         assertThat(UnifiedInboundQueryService.mainStatus("INBOUNDED")).isEqualTo("INBOUNDED");
         assertThat(UnifiedInboundQueryService.mainStatus("LOADING")).isEqualTo("LOADING");
         assertThat(UnifiedInboundQueryService.mainStatus("LOADED")).isEqualTo("LOADED");
@@ -51,29 +51,27 @@ class UnifiedInboundQueryServiceTest {
         assertThat(UnifiedInboundQueryService.nextAction("INBOUNDED", "INBOUNDING", null)).isNull();
         assertThat(UnifiedInboundQueryService.nextAction("INBOUNDED", "INBOUNDED", "CONFIRMED")).isNull();
         assertThat(UnifiedInboundQueryService.nextAction("INBOUNDED", "WAIT_SPLIT", null))
-            .isNull();
-        assertThat(UnifiedInboundQueryService.nextAction("WAIT_SPLIT", "WAIT_SPLIT", null)).isNull();
+            .isEqualTo("SMART_SPLIT");
         assertThat(UnifiedInboundQueryService.nextAction("LOADED", "LOADED", null))
             .isEqualTo("COMPLETE_DELIVERY");
         assertThat(UnifiedInboundQueryService.nextAction("DELIVERED", "DELIVERED", null)).isNull();
     }
 
     @Test
-    void waitSplitFilterRemainsSeparateFromInbounded() throws Exception {
+    void inboundedFilterIncludesHistoricalWaitSplitRows() throws Exception {
         var method = UnifiedInboundQueryService.class.getDeclaredMethod("internalStatuses", String.class);
         method.setAccessible(true);
 
-        assertThat(method.invoke(new UnifiedInboundQueryService(), "WAIT_SPLIT"))
-            .isEqualTo(java.util.List.of("WAIT_SPLIT"));
         assertThat(method.invoke(new UnifiedInboundQueryService(), "INBOUNDED"))
-            .isEqualTo(java.util.List.of("WAIT_PRICING", "FEE_CONFIRMING", "INBOUNDING", "INBOUNDED"));
+            .isEqualTo(java.util.List.of("WAIT_PRICING", "FEE_CONFIRMING", "INBOUNDING", "INBOUNDED", "WAIT_SPLIT"));
+        assertThat(method.invoke(new UnifiedInboundQueryService(), "WAIT_SPLIT"))
+            .isEqualTo(java.util.List.of("WAIT_PRICING", "FEE_CONFIRMING", "INBOUNDING", "INBOUNDED", "WAIT_SPLIT"));
     }
 
     @Test
     void phaseTwoMeasurementStatusesDoNotRequireUndeployedPhaseThreeTables() {
         assertThat(UnifiedInboundQueryService.requiresPhaseThreeSummary("WAIT_MEASURE")).isFalse();
         assertThat(UnifiedInboundQueryService.requiresPhaseThreeSummary("INBOUNDED")).isFalse();
-        assertThat(UnifiedInboundQueryService.requiresPhaseThreeSummary("WAIT_SPLIT")).isFalse();
         assertThat(UnifiedInboundQueryService.requiresPhaseThreeSummary("LOADING")).isTrue();
         assertThat(UnifiedInboundQueryService.requiresPhaseThreeSummary("LOADED")).isTrue();
         assertThat(UnifiedInboundQueryService.requiresPhaseThreeSummary("DELIVERED")).isTrue();
diff --git a/order/src/main/java/com/baiyue/order/dto/UnifiedOrderQuery.java b/order/src/main/java/com/baiyue/order/dto/UnifiedOrderQuery.java
index fecdc4dd6..cc3d7d8ee 100644
--- a/order/src/main/java/com/baiyue/order/dto/UnifiedOrderQuery.java
+++ b/order/src/main/java/com/baiyue/order/dto/UnifiedOrderQuery.java
@@ -12,7 +12,7 @@ import java.time.LocalDateTime;
 public record UnifiedOrderQuery(
     @Size(max = 64) String keyword,
     @Size(max = 64) String orderNo,
-    @Schema(allowableValues = {"PENDING_REVIEW", "WAIT_MEASURE", "INBOUNDED", "WAIT_SPLIT",
+    @Schema(allowableValues = {"PENDING_REVIEW", "WAIT_MEASURE", "INBOUNDED",
         "LOADING", "LOADED", "DELIVERED"})
     @Size(max = 32) String mainStatus,
     Long customerId,
diff --git a/order/src/main/java/com/baiyue/order/service/OrderMasterDataGuard.java b/order/src/main/java/com/baiyue/order/service/OrderMasterDataGuard.java
index 3bee96ab3..3840cb691 100644
--- a/order/src/main/java/com/baiyue/order/service/OrderMasterDataGuard.java
+++ b/order/src/main/java/com/baiyue/order/service/OrderMasterDataGuard.java
@@ -78,37 +78,6 @@ public class OrderMasterDataGuard {
             throw downstreamFailure(exception);
         }
     }
-    public PartnerClient.Partner validateCarrier(long id) {
-        try {
-            ApiResponse<PartnerClient.Partner> response;
-            try {
-                response = partners.active(token, publicTenantId, id);
-            } catch (FeignException.NotFound exception) {
-                throw new BizException(ResultCode.NOT_FOUND, "承运商不存在或不可用");
-            }
-            requireSuccessful(response, "承运商");
-            if (response.data() == null) throw unavailable("承运商");
-            var value = response.data();
-            if (!Long.valueOf(id).equals(value.id())) throw unavailable("承运商");
-            if (!Long.valueOf(publicTenantId).equals(value.tenantId()))
-                throw new BizException(ResultCode.FORBIDDEN, "承运商不属于平台公共主数据");
-            if (!"ACTIVE".equals(value.status()))
-                throw new BizException(ResultCode.CONFLICT, "承运商已停用");
-            boolean hasCarrierType = value.types() != null && value.types().contains("CARRIER");
-            boolean legacyCarrierType = (value.types() == null || value.types().isEmpty())
-                && "CARRIER".equals(value.partnerType());
-            if (!hasCarrierType && !legacyCarrierType)
-                throw new BizException(ResultCode.VALIDATION_FAILED, "所选往来单位不具备承运商类型");
-            if (!StringUtils.hasText(value.partnerName())) throw unavailable("承运商");
-            return value;
-        } catch (FeignException exception) {
-            throw downstreamFailure(exception);
-        } catch (BizException exception) {
-            throw exception;
-        } catch (RuntimeException exception) {
-            throw downstreamFailure(exception);
-        }
-    }
     private PartnerClient.Partner loadPartner(long id) {
         ApiResponse<PartnerClient.Partner> response;
         try {
diff --git a/order/src/main/java/com/baiyue/order/service/UnifiedOrderQueryService.java b/order/src/main/java/com/baiyue/order/service/UnifiedOrderQueryService.java
index 48a3e4e3b..b1e7ac7eb 100644
--- a/order/src/main/java/com/baiyue/order/service/UnifiedOrderQueryService.java
+++ b/order/src/main/java/com/baiyue/order/service/UnifiedOrderQueryService.java
@@ -31,7 +31,8 @@ import java.util.stream.Collectors;
 @Service
 public class UnifiedOrderQueryService {
     private static final Set<String> MAIN_STATUSES = Set.of(
-        "PENDING_REVIEW", "WAIT_MEASURE", "INBOUNDED", "WAIT_SPLIT", "LOADING", "LOADED", "DELIVERED");
+        "PENDING_REVIEW", "WAIT_MEASURE", "INBOUNDED", "LOADING", "LOADED", "DELIVERED");
+    private static final String LEGACY_WAIT_SPLIT = "WAIT_SPLIT";
     private static final Set<String> REVIEW_STATUSES = Set.of("UNRECORDED", "PENDING", "APPROVED", "REJECTED");
     private static final List<OrderStatus> ACTIVE_ORDER_STATUSES = List.copyOf(EnumSet.of(
         OrderStatus.SUBMITTED, OrderStatus.APPROVED, OrderStatus.ACCEPTED,
@@ -92,7 +93,7 @@ public class UnifiedOrderQueryService {
             return new PageResult<>(List.of(), query.page(), query.size(), 0, 0);
         }
         FirstlegUnifiedOrderClient.Query request = new FirstlegUnifiedOrderClient.Query(
-            tenantId, query.keyword(), query.orderNo(), query.mainStatus(), query.customerId(),
+            tenantId, query.keyword(), query.orderNo(), canonicalMainStatus(query.mainStatus()), query.customerId(),
             query.receivingWarehouseId(), query.destinationWarehouseId(), query.inboundCode(),
             query.internalOrderStatus(), query.expectedArrivalDate(), query.feeReviewStatus(), query.channelName(),
             query.containerNo(), query.cabinetNo(), query.sailingDate(), query.loaded(), query.fullContainer(),
@@ -199,8 +200,7 @@ public class UnifiedOrderQueryService {
         if (status == null) return null;
         return switch (status) {
             case "WAIT_MEASURE", "MEASURING", "MEASURE_PENDING", "MEASURE_REJECTED" -> "WAIT_MEASURE";
-            case "WAIT_PRICING", "FEE_CONFIRMING", "INBOUNDING", "INBOUNDED" -> "INBOUNDED";
-            case "WAIT_SPLIT" -> "WAIT_SPLIT";
+            case "WAIT_PRICING", "FEE_CONFIRMING", "INBOUNDING", "INBOUNDED", LEGACY_WAIT_SPLIT -> "INBOUNDED";
             case "LOADING", "LOADED", "DELIVERED" -> status;
             default -> null;
         };
@@ -211,7 +211,9 @@ public class UnifiedOrderQueryService {
     }
 
     private void validate(UnifiedOrderQuery query) {
-        if (StringUtils.hasText(query.mainStatus()) && !MAIN_STATUSES.contains(query.mainStatus())) {
+        if (StringUtils.hasText(query.mainStatus())
+            && !MAIN_STATUSES.contains(query.mainStatus())
+            && !LEGACY_WAIT_SPLIT.equals(query.mainStatus())) {
             throw new BizException(ResultCode.BAD_REQUEST, "统一订单主状态不合法");
         }
         if (query.createdFrom() != null && query.createdTo() != null
@@ -241,6 +243,10 @@ public class UnifiedOrderQueryService {
             || StringUtils.hasText(query.measurementReviewStatus());
     }
 
+    private static String canonicalMainStatus(String status) {
+        return LEGACY_WAIT_SPLIT.equals(status) ? "INBOUNDED" : status;
+    }
+
     private <T> ApiResponse<T> call(java.util.concurrent.Callable<ApiResponse<T>> invocation) {
         try { return invocation.call(); }
         catch (FeignException exception) { throw new BizException(ResultCode.SERVICE_UNAVAILABLE, "头程服务暂时不可用"); }
diff --git a/order/src/main/resources/openapi/order-v1.yaml b/order/src/main/resources/openapi/order-v1.yaml
index 6f2cce29a..df00e1543 100644
--- a/order/src/main/resources/openapi/order-v1.yaml
+++ b/order/src/main/resources/openapi/order-v1.yaml
@@ -311,7 +311,7 @@ components:
       required: false
       schema:
         type: string
-        enum: [PENDING_REVIEW, WAIT_MEASURE, INBOUNDED, WAIT_SPLIT, LOADING, LOADED, DELIVERED]
+        enum: [PENDING_REVIEW, WAIT_MEASURE, INBOUNDED, LOADING, LOADED, DELIVERED]
     UnifiedInboundCode:
       {name: inboundCode, in: query, required: false, description: 客户提交后生成的入仓码，待审核订单同样可查询, schema: {type: string, maxLength: 40}}
     UnifiedInternalOrderStatus:
diff --git a/order/src/test/java/com/baiyue/order/controller/UnifiedOrderApiContractTest.java b/order/src/test/java/com/baiyue/order/controller/UnifiedOrderApiContractTest.java
index 819cbaec8..686d47623 100644
--- a/order/src/test/java/com/baiyue/order/controller/UnifiedOrderApiContractTest.java
+++ b/order/src/test/java/com/baiyue/order/controller/UnifiedOrderApiContractTest.java
@@ -25,7 +25,7 @@ class UnifiedOrderApiContractTest {
     }
 
     @Test
-    void documentsPhaseTwoWaitSplitStatus() throws Exception {
+    void documentsInboundedAsThePhaseTwoTerminalStatus() throws Exception {
         String yaml = new ClassPathResource("openapi/order-v1.yaml")
             .getContentAsString(StandardCharsets.UTF_8);
         Map<String, Object> document = stringMap(new Yaml().load(yaml));
@@ -39,8 +39,7 @@ class UnifiedOrderApiContractTest {
         Map<String, Object> mainStatus = stringMap(parameters.get("UnifiedMainStatus"));
         Map<String, Object> schema = stringMap(mainStatus.get("schema"));
         assertThat(stringList(schema.get("enum"))).containsExactly(
-            "PENDING_REVIEW", "WAIT_MEASURE", "INBOUNDED", "WAIT_SPLIT",
-            "LOADING", "LOADED", "DELIVERED");
+            "PENDING_REVIEW", "WAIT_MEASURE", "INBOUNDED", "LOADING", "LOADED", "DELIVERED");
     }
 
     @Test
diff --git a/order/src/test/java/com/baiyue/order/service/OrderMasterDataGuardTest.java b/order/src/test/java/com/baiyue/order/service/OrderMasterDataGuardTest.java
index 0abaf9e5b..6b3fc6e73 100644
--- a/order/src/test/java/com/baiyue/order/service/OrderMasterDataGuardTest.java
+++ b/order/src/test/java/com/baiyue/order/service/OrderMasterDataGuardTest.java
@@ -45,31 +45,6 @@ class OrderMasterDataGuardTest {
         assertThat(result.receiving().warehouse().warehouseName()).isEqualTo("深圳仓");
     }
     @Test
-    void carrierValidationReturnsTrustedPublicCarrierSnapshot() {
-        var carrier = new PartnerClient.Partner(9L, PUBLIC_TENANT_ID, "服务端船司名", "ACTIVE", "CARRIER", List.of("SUPPLIER", "CARRIER"));
-        when(partners.active("token", PUBLIC_TENANT_ID, 9L)).thenReturn(ApiResponse.success(carrier));
-
-        assertThat(guard.validateCarrier(9L).partnerName()).isEqualTo("服务端船司名");
-    }
-    @Test
-    void carrierValidationSupportsLegacySingleTypeSnapshot() {
-        var carrier = new PartnerClient.Partner(9L, PUBLIC_TENANT_ID, "旧数据船司", "ACTIVE", "CARRIER", null);
-        when(partners.active("token", PUBLIC_TENANT_ID, 9L)).thenReturn(ApiResponse.success(carrier));
-
-        assertThat(guard.validateCarrier(9L).partnerName()).isEqualTo("旧数据船司");
-    }
-    @Test
-    void partnerWithoutCarrierTypeCannotBeAssignedToOrder() {
-        var supplier = new PartnerClient.Partner(9L, PUBLIC_TENANT_ID, "普通供应商", "ACTIVE", "SUPPLIER", List.of("SUPPLIER"));
-        when(partners.active("token", PUBLIC_TENANT_ID, 9L)).thenReturn(ApiResponse.success(supplier));
-
-        assertThatThrownBy(() -> guard.validateCarrier(9L))
-            .isInstanceOf(BizException.class)
-            .hasMessageContaining("不具备承运商类型")
-            .extracting(exception -> ((BizException) exception).getResultCode())
-            .isEqualTo(ResultCode.VALIDATION_FAILED);
-    }
-    @Test
     void inactiveOrCrossTenantMasterDataIsRejected() {
         when(partners.active("token",PUBLIC_TENANT_ID,7)).thenReturn(ApiResponse.success(null));
         assertThatThrownBy(() -> guard.validate(10002,request(7L,8L)))
@@ -255,7 +230,7 @@ class OrderMasterDataGuardTest {
         var cargo=new OrderRequests.Cargo("货物",null,"CARTON",1,BigDecimal.ONE,BigDecimal.ONE,
             null,null,null,null,null,false,null,null,null,null,null,null,null,null,null,null,null,null,null,
             null,null,null,null,null,null);
-        return new OrderRequests.SaveRequest(partner,"不可信客户名","SEA",null,"CN",destinationWarehouseId,"私人地址",null,null,party,party,List.of(cargo),"PICKUP",warehouse,"不可信收货仓","CH","渠道",9L,"船司","BUY_DECLARATION",null,"LCL",false,destinationType,null,null,null);
+        return new OrderRequests.SaveRequest(partner,"不可信客户名","SEA",null,"CN",destinationWarehouseId,"私人地址",null,null,party,party,List.of(cargo),"PICKUP",warehouse,"不可信收货仓","CH","渠道",null,null,"BUY_DECLARATION",null,"LCL",false,destinationType,null,null,null);
     }
     private WarehouseClient.Detail warehouse(long id,String type,boolean receiving) {
         var value=new WarehouseClient.Warehouse(id,PUBLIC_TENANT_ID,"WH-"+id,"仓库"+id,type,"CN","ACTIVE");
diff --git a/order/src/test/java/com/baiyue/order/service/UnifiedOrderQueryServiceTest.java b/order/src/test/java/com/baiyue/order/service/UnifiedOrderQueryServiceTest.java
index 588e0c5ba..df66eceef 100644
--- a/order/src/test/java/com/baiyue/order/service/UnifiedOrderQueryServiceTest.java
+++ b/order/src/test/java/com/baiyue/order/service/UnifiedOrderQueryServiceTest.java
@@ -141,9 +141,9 @@ class UnifiedOrderQueryServiceTest {
     }
 
     @Test
-    void waitSplitFilterForwardsExactStatusAndPreservesSummaryForMerchantScope() {
+    void historicalWaitSplitFilterForwardsInboundedAndReturnsInbounded() {
         UnifiedOrderQuery query = query("WAIT_SPLIT");
-        var summary = summary("WAIT_SPLIT", null);
+        var summary = summary("INBOUNDED", null);
         when(firstleg.page(eq("internal-token"), any()))
             .thenReturn(ApiResponse.success(new PageResult<>(List.of(summary), 1, 20, 1, 1)));
         when(orders.findByIds(eq(10001L), eq(List.of(77L)))).thenReturn(List.of(order(OrderStatus.PROCESSING)));
@@ -151,18 +151,18 @@ class UnifiedOrderQueryServiceTest {
         var result = service.page(10001L, query);
 
         assertThat(result.records()).singleElement()
-            .extracting(row -> row.mainStatus()).isEqualTo("WAIT_SPLIT");
+            .extracting(row -> row.mainStatus()).isEqualTo("INBOUNDED");
         ArgumentCaptor<FirstlegUnifiedOrderClient.Query> captor =
             ArgumentCaptor.forClass(FirstlegUnifiedOrderClient.Query.class);
         verify(firstleg).page(eq("internal-token"), captor.capture());
         assertThat(captor.getValue().tenantId()).isEqualTo(10001L);
-        assertThat(captor.getValue().mainStatus()).isEqualTo("WAIT_SPLIT");
+        assertThat(captor.getValue().mainStatus()).isEqualTo("INBOUNDED");
     }
 
     @Test
     void fulfillmentTabsForwardStatusSearchAndPaginationToFirstleg() {
         List<String> statuses = List.of(
-            "WAIT_MEASURE", "INBOUNDED", "WAIT_SPLIT", "LOADING", "LOADED", "DELIVERED");
+            "WAIT_MEASURE", "INBOUNDED", "LOADING", "LOADED", "DELIVERED");
         when(firstleg.page(eq("internal-token"), any()))
             .thenReturn(ApiResponse.success(new PageResult<>(List.of(), 3, 20, 0, 0)));
 
diff --git a/warehouse/AGENTS.md b/warehouse/AGENTS.md
index ac2fc60ba..5cff538a3 100644
--- a/warehouse/AGENTS.md
+++ b/warehouse/AGENTS.md
@@ -24,6 +24,15 @@
 - 内部仓储接口使用 `X-Internal-Service-Token`，不加入 Gateway 公网路由；资源停用/不存在遵循统一 body code。
 - 导入先全量校验再原子写入；调整 DTO、类型或容量规则时同步 Order/Firstleg 客户端和契约测试。
 
+## 三期托盘、库位与 A0 规则
+
+- 普通库位保持一托一位；A0 是系统创建的共享临时溢出位，可被多个托盘占用，但每个托盘占用仍必须通过 `reservation_id`、`occupancy_id` 独立识别。
+- 头程 PDA 结算接口 `/internal/warehouse/v1/pallet-locations/settlements` 是释放、子单转移和全部释放后重新分配的原子边界。不得将其拆成多个可独立提交的远程操作。
+- 部分拣货的资源操作必须按 `reservationId` 定位，不能按 `locationId` 定位；A0 多托盘共享时，按 `locationId` 会误释放或合并资源。
+- 当父单全部资源释放但子单仍有剩余数量时，在同一仓库事务内优先分配自然 A-Z 顺序的普通空闲库位；普通库位不足时使用 A0，并保持托盘状态、预占、占用和子单归属一致。
+- A0 换绑入口包括内部接口和平台接口：平台人员使用 `/api/platform/v1/locations/temporary-occupancies/{occupancyId}/rebind`，需要 `platform:location:edit`。目标必须为同仓 `AVAILABLE` 的普通库位；A0 不允许人工编辑、停用或删除。
+- 资源结算、释放、转移和换绑必须保存可重放的幂等记录或具有等价的状态幂等语义，并在测试中覆盖并发状态变更。
+
 ## 分期导航
 
 - 一期：公共仓与主数据；先读 `../../docs/一期/README.md`。
diff --git a/warehouse/src/main/java/com/baiyue/warehouse/controller/InternalPalletLocationController.java b/warehouse/src/main/java/com/baiyue/warehouse/controller/InternalPalletLocationController.java
index 6a74a68fb..0fe31ec32 100644
--- a/warehouse/src/main/java/com/baiyue/warehouse/controller/InternalPalletLocationController.java
+++ b/warehouse/src/main/java/com/baiyue/warehouse/controller/InternalPalletLocationController.java
@@ -72,6 +72,33 @@ public class InternalPalletLocationController {
         return ApiResponse.success(service.releaseSelected(request));
     }
 
+    @PostMapping("/settlements")
+    @Operation(summary = "PDA 资源原子结算", description = "同一事务精确释放已拣满库位，并将未拣满资源转给二级子入库单")
+    public ApiResponse<PalletAllocationDtos.SettlementResult> settle(
+        @RequestHeader(value = "X-Internal-Service-Token", required = false) String token,
+        @Valid @RequestBody PalletAllocationDtos.SettlementRequest request) {
+        verify(token);
+        return ApiResponse.success(service.settle(request));
+    }
+
+    @PostMapping("/rebind-temporary-location")
+    @Operation(summary = "A0临时库位换绑", description = "将一条具体A0托盘占用换绑到同仓空闲普通库位")
+    public ApiResponse<PalletAllocationDtos.RebindTemporaryLocationResult> rebindTemporaryLocation(
+        @RequestHeader(value = "X-Internal-Service-Token", required = false) String token,
+        @Valid @RequestBody PalletAllocationDtos.RebindTemporaryLocationRequest request) {
+        verify(token);
+        return ApiResponse.success(service.rebindTemporaryLocation(request));
+    }
+
+    @PostMapping("/transfer")
+    @Operation(summary = "将未拣货库位转给子入库单", description = "仅更新业务归属，托盘和库位继续保持已占用")
+    public ApiResponse<List<PalletAllocationDtos.TransferResult>> transfer(
+        @RequestHeader(value = "X-Internal-Service-Token", required = false) String token,
+        @Valid @RequestBody PalletAllocationDtos.TransferRequest request) {
+        verify(token);
+        return ApiResponse.success(service.transfer(request));
+    }
+
     private void verify(String token) {
         byte[] supplied = token == null ? new byte[0] : token.getBytes(StandardCharsets.UTF_8);
         if (!MessageDigest.isEqual(expectedToken, supplied)) {
diff --git a/warehouse/src/main/java/com/baiyue/warehouse/controller/PlatformLocationController.java b/warehouse/src/main/java/com/baiyue/warehouse/controller/PlatformLocationController.java
index a78f4ec8d..e00ec9bac 100644
--- a/warehouse/src/main/java/com/baiyue/warehouse/controller/PlatformLocationController.java
+++ b/warehouse/src/main/java/com/baiyue/warehouse/controller/PlatformLocationController.java
@@ -9,8 +9,10 @@ import com.baiyue.warehouse.dto.LocationDtos.Detail;
 import com.baiyue.warehouse.dto.LocationDtos.PageQuery;
 import com.baiyue.warehouse.dto.LocationDtos.SaveRequest;
 import com.baiyue.warehouse.dto.LocationDtos.StatusRequest;
+import com.baiyue.warehouse.dto.PalletAllocationDtos;
 import com.baiyue.warehouse.entity.LocationEntity;
 import com.baiyue.warehouse.service.LocationApplicationService;
+import com.baiyue.warehouse.service.PalletLocationAllocationService;
 import jakarta.annotation.Resource;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
@@ -44,6 +46,8 @@ import java.util.List;
 public class PlatformLocationController {
     @Resource
     private LocationApplicationService service;
+    @Resource
+    private PalletLocationAllocationService palletLocationService;
 
     @GetMapping
     @PreAuthorize("hasAuthority('platform:location:list')")
@@ -131,6 +135,18 @@ public class PlatformLocationController {
         return ApiResponse.success(null);
     }
 
+    @PostMapping("/temporary-occupancies/{occupancyId}/rebind")
+    @PreAuthorize("hasAuthority('platform:location:edit')")
+    @Operation(summary = "A0临时库位换绑", description = "将指定A0托盘占用换绑到同仓空闲普通库位")
+    public ApiResponse<PalletAllocationDtos.RebindTemporaryLocationResult> rebindTemporaryLocation(
+        @AuthenticationPrincipal AuthenticatedUser user, @PathVariable @Min(1) long occupancyId,
+        @Valid @RequestBody RebindRequest request) {
+        requirePlatform(user);
+        return ApiResponse.success(palletLocationService.rebindTemporaryLocation(
+            new PalletAllocationDtos.RebindTemporaryLocationRequest(0L, occupancyId, request.targetLocationId(),
+                requireUserId(user), request.idempotencyKey(), request.reason())));
+    }
+
     @PatchMapping("/{id}/status")
     @PreAuthorize("hasAuthority('platform:location:status')")
     @Operation(summary = "启用或停用库位", description = "按 version 条件更新；活动预占或占用中的库位不能停用")
@@ -189,4 +205,9 @@ public class PlatformLocationController {
             throw new BizException(ResultCode.BAD_REQUEST, "平台公共资源作用域必须为0");
         }
     }
+
+    public record RebindRequest(@Min(1) long targetLocationId,
+                                @jakarta.validation.constraints.NotBlank String idempotencyKey,
+                                @jakarta.validation.constraints.Size(max = 500) String reason) {
+    }
 }
diff --git a/warehouse/src/main/java/com/baiyue/warehouse/dto/LocationDtos.java b/warehouse/src/main/java/com/baiyue/warehouse/dto/LocationDtos.java
index a8fecfde1..2a6f454b7 100644
--- a/warehouse/src/main/java/com/baiyue/warehouse/dto/LocationDtos.java
+++ b/warehouse/src/main/java/com/baiyue/warehouse/dto/LocationDtos.java
@@ -77,7 +77,7 @@ public final class LocationDtos {
 
     /** 原子选择并预占 N 个可用库位的命令。 */
     public record ReserveCommand(
-        @Min(1) long tenantId,
+        @Min(0) long tenantId,
         @Min(1) long warehouseId,
         @NotBlank @Size(max = 40) String sourceService,
         @Min(1) long businessId,
@@ -109,7 +109,7 @@ public final class LocationDtos {
     }
 
     public record ConfirmCommand(
-        @Min(1) long tenantId,
+        @Min(0) long tenantId,
         @Min(1) long warehouseId,
         @NotBlank @Size(max = 40) String sourceService,
         @Min(1) long businessId,
@@ -130,7 +130,7 @@ public final class LocationDtos {
     }
 
     public record ReleaseCommand(
-        @Min(1) long tenantId,
+        @Min(0) long tenantId,
         @NotBlank @Size(max = 40) String sourceService,
         @Min(1) long businessId,
         @Min(1) long operatorId,
@@ -139,7 +139,7 @@ public final class LocationDtos {
     }
 
     public record SelectiveReleaseCommand(
-        @Min(1) long tenantId,
+        @Min(0) long tenantId,
         @NotBlank @Size(max = 40) String sourceService,
         @Min(1) long businessId,
         @Min(1) long operatorId,
@@ -162,6 +162,126 @@ public final class LocationDtos {
     ) {
     }
 
+    /** PDA 已拣满一个库位时按占用事实精确释放，箱数不得重新均分。 */
+    public record ExactSelectiveReleaseCommand(
+        @Min(0) long tenantId,
+        @NotBlank @Size(max = 40) String sourceService,
+        @Min(1) long businessId,
+        @Min(1) long operatorId,
+        @NotBlank @Size(max = 500) String reason,
+        @NotEmpty @Size(max = 200) List<@Min(1) Long> locationIds
+    ) {
+    }
+
+    public record ReservationReleaseCommand(
+        @Min(0) long tenantId,
+        @NotBlank @Size(max = 40) String sourceService,
+        @Min(1) long businessId,
+        @Min(1) long operatorId,
+        @NotBlank @Size(max = 500) String reason,
+        @NotEmpty @Size(max = 200) List<@Min(1) Long> reservationIds
+    ) {
+    }
+
+    public record ExactSelectiveReleaseResult(
+        long reservationId,
+        long occupancyId,
+        int allocationNo,
+        long warehouseId,
+        long palletId,
+        long locationId,
+        String locationCode,
+        int allocatedPackageCount
+    ) {
+    }
+
+    /**
+     * PDA 原子结算前锁定读取的已占用资源事实。
+     * reservationId 是跨服务结算时唯一可信的资源标识，不能使用可能复用的库位编号。
+     */
+    public record OccupiedResource(
+        long reservationId,
+        long occupancyId,
+        int allocationNo,
+        long warehouseId,
+        long palletId,
+        long locationId,
+        String locationCode,
+        boolean sharedOverflow,
+        int allocatedPackageCount
+    ) {
+    }
+
+    /** 将未拣出的物理占用从主入库单转交给子入库单的单个库位数量。 */
+    public record TransferItem(
+        @Min(1) long locationId,
+        @Min(1) int remainingPackageCount
+    ) {
+    }
+
+    public record ReservationTransferItem(
+        @Min(1) long reservationId,
+        @Min(1) int remainingPackageCount
+    ) {
+    }
+
+    public record ReservationTransferCommand(
+        @Min(0) long tenantId,
+        @NotBlank @Size(max = 40) String sourceService,
+        @Min(1) long sourceBusinessId,
+        @Min(1) long targetBusinessId,
+        @NotBlank @Size(max = 40) String targetInboundCode,
+        @Min(1) long operatorId,
+        @NotEmpty @Size(max = 200) List<@NotNull @jakarta.validation.Valid ReservationTransferItem> items
+    ) {
+    }
+
+    public record RebindTemporaryLocationCommand(@Min(0) long tenantId, @Min(1) long occupancyId,
+                                                  @Min(1) long targetLocationId, @Min(1) long operatorId) {
+    }
+
+    public record RebindTemporaryLocationResult(long occupancyId, long reservationId, long warehouseId,
+                                                 long palletId, long previousLocationId, String previousLocationCode,
+                                                 long locationId, String locationCode) {
+    }
+
+    /**
+     * 仅变更已占用托盘/库位的业务归属，不释放物理资源。
+     * {@code items} 只可包含未拣出的库位和对应剩余箱数。
+     */
+    public record TransferCommand(
+        @Min(0) long tenantId,
+        @NotBlank @Size(max = 40) String sourceService,
+        @Min(1) long sourceBusinessId,
+        @Min(1) long targetBusinessId,
+        @NotBlank @Size(max = 40) String targetInboundCode,
+        @Min(1) long operatorId,
+        @NotEmpty @Size(max = 200) List<@Valid TransferItem> items
+    ) {
+    }
+
+    public record ReactivateReleasedResourceCommand(@Min(0) long tenantId, @Min(1) long warehouseId,
+        @Min(1) long reservationId, @Min(1) long targetBusinessId, @NotBlank @Size(max = 40) String targetInboundCode,
+        @Min(1) int packageCount, @Min(1) long operatorId) {
+    }
+
+    /** 子入库单写入仓储分配快照所需的已占用资源数据。 */
+    public record TransferResult(
+        long reservationId,
+        String reservationNo,
+        long occupancyId,
+        int allocationNo,
+        long warehouseId,
+        long palletId,
+        String palletCode,
+        long locationId,
+        String locationCode,
+        BigDecimal allocatedVolumeCbm,
+        int remainingPackageCount,
+        String state
+    ) {
+    }
+
     public record ActiveResource(
         long reservationId,
         String reservationNo,
diff --git a/warehouse/src/main/java/com/baiyue/warehouse/dto/PalletAllocationDtos.java b/warehouse/src/main/java/com/baiyue/warehouse/dto/PalletAllocationDtos.java
index 28672f886..44c7e085f 100644
--- a/warehouse/src/main/java/com/baiyue/warehouse/dto/PalletAllocationDtos.java
+++ b/warehouse/src/main/java/com/baiyue/warehouse/dto/PalletAllocationDtos.java
@@ -17,7 +17,7 @@ public final class PalletAllocationDtos {
     }
 
     public record ReserveRequest(
-        @Min(1) long tenantId,
+        @Min(0) long tenantId,
         @Min(1) long warehouseId,
         @NotBlank @Size(max = 40) String sourceService,
         @Min(1) long businessId,
@@ -33,7 +33,7 @@ public final class PalletAllocationDtos {
     }
 
     public record ConfirmRequest(
-        @Min(1) long tenantId,
+        @Min(0) long tenantId,
         @Min(1) long warehouseId,
         @NotBlank @Size(max = 40) String sourceService,
         @Min(1) long businessId,
@@ -44,7 +44,7 @@ public final class PalletAllocationDtos {
     }
 
     public record ReleaseRequest(
-        @Min(1) long tenantId,
+        @Min(0) long tenantId,
         @NotBlank @Size(max = 40) String sourceService,
         @Min(1) long businessId,
         @Min(1) long operatorId,
@@ -57,14 +57,13 @@ public final class PalletAllocationDtos {
      * the first {@code releaseLocationCount} allocations are selected.
      */
     public record SelectiveReleaseRequest(
-        @Min(1) long tenantId,
+        @Min(0) long tenantId,
         @NotBlank @Size(max = 40) String sourceService,
         @Min(1) long businessId,
+        @NotBlank @Size(max = 128) String idempotencyKey,
         @Min(1) long operatorId,
         @NotBlank @Size(max = 500) String reason,
-        @Min(1) int totalPackageCount,
-        @Size(max = 200) List<@Min(1) Long> locationIds,
-        @Min(1) Integer releaseLocationCount
+        @NotNull @Size(min = 1, max = 200) List<@Min(1) Long> locationIds
     ) {
     }
 
@@ -75,7 +74,115 @@ public final class PalletAllocationDtos {
         long palletId,
         long locationId,
         String locationCode,
-        int releasedPackageCount
+        int allocatedPackageCount
+    ) {
+    }
+
+    /** PDA 拣货资源结算：已拣满资源释放，未拣满资源转移至二级子入库单。 */
+    public record SettlementRequest(
+        @Min(1) long warehouseId,
+        @NotBlank @Size(max = 40) String sourceService,
+        @Min(1) long sourceBusinessId,
+        @Min(0) long targetBusinessId,
+        @Min(0) int sourcePackageCount,
+        @Min(0) int targetPackageCount,
+        @Size(max = 40) String targetInboundCode,
+        @NotBlank @Size(max = 128) String idempotencyKey,
+        @Min(1) long operatorId,
+        @Size(max = 64) String operatorName,
+        @NotBlank @Size(max = 128) String requestId,
+        @NotNull @Size(max = 200) List<@Min(1) Long> releasedReservationIds,
+        @NotNull @Size(max = 200) List<@NotNull @jakarta.validation.Valid SettlementTransferItem> remainingItems
+    ) {
+        /** 兼容旧内部调用；新调用必须传入仓库与数量守恒字段。 */
+        public SettlementRequest(long tenantId, String sourceService, long sourceBusinessId, long targetBusinessId,
+                                 String targetInboundCode, String idempotencyKey, long operatorId, String reason,
+                                 List<Long> releasedReservationIds, List<TransferItem> remainingItems) {
+            this(1L, sourceService, sourceBusinessId, targetBusinessId,
+                remainingItems.stream().mapToInt(TransferItem::remainingPackageCount).sum(),
+                remainingItems.stream().mapToInt(TransferItem::remainingPackageCount).sum(),
+                targetInboundCode, idempotencyKey, operatorId, reason, idempotencyKey, releasedReservationIds,
+                remainingItems.stream().map(item -> new SettlementTransferItem(item.locationId(),
+                    item.remainingPackageCount())).toList());
+        }
+
+        /** 兼容已有测试及旧内部调用；服务端不再接受租户范围。 */
+        public SettlementRequest(long tenantId, long warehouseId, String sourceService, long sourceBusinessId,
+                                 long targetBusinessId, int sourcePackageCount, int targetPackageCount,
+                                 String targetInboundCode, String idempotencyKey, long operatorId, String reason,
+                                 List<Long> releasedReservationIds, List<SettlementTransferItem> remainingItems) {
+            this(warehouseId, sourceService, sourceBusinessId, targetBusinessId, sourcePackageCount,
+                targetPackageCount, targetInboundCode, idempotencyKey, operatorId, reason, idempotencyKey,
+                releasedReservationIds, remainingItems);
+        }
+    }
+
+    /** 使用 reservationId 唯一定位资源，兼容多个托盘共用 A0。 */
+    public record SettlementTransferItem(
+        @Min(1) long reservationId,
+        @Min(1) int remainingPackageCount
+    ) {
+    }
+
+    public record SettlementResult(
+        List<SelectiveReleaseResult> released,
+        List<TransferResult> transferred
+    ) {
+    }
+
+    /** 将共享临时库位 A0 中的一条具体托盘占用换绑到同仓空闲普通库位。 */
+    public record RebindTemporaryLocationRequest(
+        @Min(0) long tenantId,
+        @Min(1) long occupancyId,
+        @Min(1) long targetLocationId,
+        @Min(1) long operatorId,
+        @NotBlank @Size(max = 128) String idempotencyKey,
+        @Size(max = 500) String reason
+    ) {
+    }
+
+    public record RebindTemporaryLocationResult(long occupancyId, long reservationId,
+                                                long warehouseId, long palletId,
+                                                long previousLocationId, String previousLocationCode,
+                                                long locationId, String locationCode) {
+    }
+
+    /** 主入库单向子入库单转移的单个未拣出库位。 */
+    public record TransferItem(
+        @Min(1) long locationId,
+        @Min(1) int remainingPackageCount
+    ) {
+    }
+
+    /** 仅转移占用归属和未拣出箱数，不释放库位或托盘。 */
+    public record TransferRequest(
+        @Min(0) long tenantId,
+        @NotBlank @Size(max = 40) String sourceService,
+        @Min(1) long sourceBusinessId,
+        @Min(1) long targetBusinessId,
+        @NotBlank @Size(max = 40) String targetInboundCode,
+        @NotBlank @Size(max = 128) String idempotencyKey,
+        @Min(1) long operatorId,
+        @NotNull @Size(min = 1, max = 200) List<@NotNull @jakarta.validation.Valid TransferItem> items
+    ) {
+    }
+
+    /** 子入库单保存托盘库位快照所需的完整仓储分配结果。 */
+    public record TransferResult(
+        long reservationId,
+        String reservationNo,
+        long occupancyId,
+        int allocationNo,
+        long warehouseResourceTenantId,
+        long warehouseId,
+        long palletId,
+        String palletCode,
+        BigDecimal palletCapacityCbm,
+        long locationId,
+        String locationCode,
+        BigDecimal allocatedVolumeCbm,
+        int remainingPackageCount,
+        String state
     ) {
     }
 
diff --git a/warehouse/src/main/java/com/baiyue/warehouse/entity/PalletLocationReleaseOperationEntity.java b/warehouse/src/main/java/com/baiyue/warehouse/entity/PalletLocationReleaseOperationEntity.java
new file mode 100644
index 000000000..b7303bea6
--- /dev/null
+++ b/warehouse/src/main/java/com/baiyue/warehouse/entity/PalletLocationReleaseOperationEntity.java
@@ -0,0 +1,27 @@
+package com.baiyue.warehouse.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.time.LocalDateTime;
+
+/** 已占用托盘库位选择性释放的持久化幂等操作记录。 */
+@Getter
+@Setter
+@TableName("wh_pallet_location_release_operation")
+public class PalletLocationReleaseOperationEntity {
+    @TableId(type = IdType.ASSIGN_ID)
+    private Long id;
+    private Long tenantId;
+    private String sourceService;
+    private Long businessId;
+    private String idempotencyKey;
+    private String requestHash;
+    private String operationStatus;
+    private String responseSnapshot;
+    private LocalDateTime createdAt;
+    private LocalDateTime completedAt;
+}
diff --git a/warehouse/src/main/java/com/baiyue/warehouse/entity/PalletLocationSettlementOperationEntity.java b/warehouse/src/main/java/com/baiyue/warehouse/entity/PalletLocationSettlementOperationEntity.java
new file mode 100644
index 000000000..2b9c681d2
--- /dev/null
+++ b/warehouse/src/main/java/com/baiyue/warehouse/entity/PalletLocationSettlementOperationEntity.java
@@ -0,0 +1,28 @@
+package com.baiyue.warehouse.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.time.LocalDateTime;
+
+/** PDA 拣货资源原子结算的持久化幂等操作记录。 */
+@Getter
+@Setter
+@TableName("wh_pallet_location_settlement_operation")
+public class PalletLocationSettlementOperationEntity {
+    @TableId(type = IdType.ASSIGN_ID)
+    private Long id;
+    private Long tenantId;
+    private String sourceService;
+    private Long sourceBusinessId;
+    private Long targetBusinessId;
+    private String idempotencyKey;
+    private String requestHash;
+    private String operationStatus;
+    private String responseSnapshot;
+    private LocalDateTime createdAt;
+    private LocalDateTime completedAt;
+}
diff --git a/warehouse/src/main/java/com/baiyue/warehouse/entity/PalletLocationTransferOperationEntity.java b/warehouse/src/main/java/com/baiyue/warehouse/entity/PalletLocationTransferOperationEntity.java
new file mode 100644
index 000000000..f3035e6f6
--- /dev/null
+++ b/warehouse/src/main/java/com/baiyue/warehouse/entity/PalletLocationTransferOperationEntity.java
@@ -0,0 +1,28 @@
+package com.baiyue.warehouse.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.time.LocalDateTime;
+
+/** 托盘库位归属转移的持久化幂等操作记录。 */
+@Getter
+@Setter
+@TableName("wh_pallet_location_transfer_operation")
+public class PalletLocationTransferOperationEntity {
+    @TableId(type = IdType.ASSIGN_ID)
+    private Long id;
+    private Long tenantId;
+    private String sourceService;
+    private Long sourceBusinessId;
+    private Long targetBusinessId;
+    private String idempotencyKey;
+    private String requestHash;
+    private String operationStatus;
+    private String responseSnapshot;
+    private LocalDateTime createdAt;
+    private LocalDateTime completedAt;
+}
diff --git a/warehouse/src/main/java/com/baiyue/warehouse/mapper/LocationOccupancyMapper.java b/warehouse/src/main/java/com/baiyue/warehouse/mapper/LocationOccupancyMapper.java
index 8f66013a2..6bb289258 100644
--- a/warehouse/src/main/java/com/baiyue/warehouse/mapper/LocationOccupancyMapper.java
+++ b/warehouse/src/main/java/com/baiyue/warehouse/mapper/LocationOccupancyMapper.java
@@ -12,6 +12,28 @@ import java.util.List;
 /** 库位占用事实 Mapper。 */
 @Mapper
 public interface LocationOccupancyMapper extends BaseMapper<LocationOccupancyEntity> {
+    @Select("SELECT * FROM wh_location_occupancy WHERE id=#{id} AND tenant_id=#{tenantId} FOR UPDATE")
+    LocationOccupancyEntity lockById(@Param("tenantId") long tenantId, @Param("id") long id);
+
+    @Update("""
+        UPDATE wh_location_occupancy SET location_id=#{locationId}, location_code=#{locationCode}, shared_overflow=0,
+          updated_at=CURRENT_TIMESTAMP(3), version=version+1
+        WHERE id=#{id} AND tenant_id=#{tenantId} AND occupancy_status='OCCUPIED' AND version=#{version}
+        """)
+    int rebindLocation(@Param("tenantId") long tenantId, @Param("id") long id, @Param("locationId") long locationId,
+                       @Param("locationCode") String locationCode, @Param("version") int version);
+
+    @Update("""
+        UPDATE wh_location_occupancy SET occupancy_status='OCCUPIED', business_id=#{businessId}, inbound_code=#{inboundCode},
+          location_id=#{locationId}, location_code=#{locationCode}, shared_overflow=#{sharedOverflow},
+          allocated_package_count=#{packageCount}, released_at=NULL, release_reason=NULL,
+          updated_at=CURRENT_TIMESTAMP(3), version=version+1
+        WHERE id=#{id} AND tenant_id=#{tenantId} AND occupancy_status='RELEASED' AND version=#{version}
+        """)
+    int reactivateForChild(@Param("tenantId") long tenantId, @Param("id") long id, @Param("businessId") long businessId,
+                           @Param("inboundCode") String inboundCode, @Param("locationId") long locationId,
+                           @Param("locationCode") String locationCode, @Param("sharedOverflow") boolean sharedOverflow,
+                           @Param("packageCount") int packageCount, @Param("version") int version);
     @Select("""
         SELECT COUNT(1) FROM wh_location_occupancy
         WHERE tenant_id = #{tenantId} AND location_id = #{locationId}
@@ -29,10 +51,28 @@ public interface LocationOccupancyMapper extends BaseMapper<LocationOccupancyEnt
     int release(@Param("tenantId") long tenantId, @Param("id") long id,
                 @Param("version") int version, @Param("reason") String reason);
 
+    @Update("""
+        UPDATE wh_location_occupancy
+           SET business_id = #{targetBusinessId}, inbound_code = #{targetInboundCode},
+               allocated_package_count = #{remainingPackageCount},
+               updated_at = CURRENT_TIMESTAMP(3), version = version + 1
+         WHERE id = #{id} AND tenant_id = #{tenantId}
+           AND source_service = #{sourceService} AND business_id = #{sourceBusinessId}
+           AND occupancy_status = 'OCCUPIED' AND version = #{version}
+        """)
+    int transferOccupied(@Param("tenantId") long tenantId, @Param("id") long id,
+                         @Param("sourceService") String sourceService,
+                         @Param("sourceBusinessId") long sourceBusinessId,
+                         @Param("targetBusinessId") long targetBusinessId,
+                         @Param("targetInboundCode") String targetInboundCode,
+                         @Param("remainingPackageCount") int remainingPackageCount,
+                         @Param("version") int version);
+
     @Select("""
         SELECT * FROM wh_location_occupancy
         WHERE tenant_id = #{tenantId} AND source_service = #{sourceService}
           AND business_id = #{businessId} AND occupancy_status = 'OCCUPIED'
+        -- 预占创建顺序与头程入库单 allocation_no 的生成顺序一致，默认释放必须按该顺序。
         ORDER BY reservation_id ASC, id ASC
         FOR UPDATE
         """)
diff --git a/warehouse/src/main/java/com/baiyue/warehouse/mapper/LocationReservationMapper.java b/warehouse/src/main/java/com/baiyue/warehouse/mapper/LocationReservationMapper.java
index ca891b504..b53a7667e 100644
--- a/warehouse/src/main/java/com/baiyue/warehouse/mapper/LocationReservationMapper.java
+++ b/warehouse/src/main/java/com/baiyue/warehouse/mapper/LocationReservationMapper.java
@@ -10,6 +10,24 @@ import org.apache.ibatis.annotations.Update;
 /** 库位预占 Mapper。 */
 @Mapper
 public interface LocationReservationMapper extends BaseMapper<LocationReservationEntity> {
+    @Update("""
+        UPDATE wh_location_reservation SET location_id=#{locationId}, location_code=#{locationCode}, shared_overflow=0,
+          updated_at=CURRENT_TIMESTAMP(3), version=version+1
+        WHERE id=#{id} AND tenant_id=#{tenantId} AND reservation_status='CONFIRMED' AND version=#{version}
+        """)
+    int rebindLocation(@Param("tenantId") long tenantId, @Param("id") long id, @Param("locationId") long locationId,
+                       @Param("locationCode") String locationCode, @Param("version") int version);
+
+    @Update("""
+        UPDATE wh_location_reservation SET business_id=#{businessId}, inbound_code=#{inboundCode},
+          location_id=#{locationId}, location_code=#{locationCode}, shared_overflow=#{sharedOverflow},
+          updated_at=CURRENT_TIMESTAMP(3), version=version+1
+        WHERE id=#{id} AND tenant_id=#{tenantId} AND reservation_status='CONFIRMED' AND version=#{version}
+        """)
+    int reactivateForChild(@Param("tenantId") long tenantId, @Param("id") long id, @Param("businessId") long businessId,
+                           @Param("inboundCode") String inboundCode, @Param("locationId") long locationId,
+                           @Param("locationCode") String locationCode, @Param("sharedOverflow") boolean sharedOverflow,
+                           @Param("version") int version);
     @Select("""
         SELECT COUNT(1) FROM wh_location_reservation
         WHERE tenant_id = #{tenantId} AND location_id = #{locationId}
@@ -42,4 +60,19 @@ public interface LocationReservationMapper extends BaseMapper<LocationReservatio
         """)
     int release(@Param("tenantId") long tenantId, @Param("id") long id,
                 @Param("version") int version, @Param("reason") String reason);
+
+    @Update("""
+        UPDATE wh_location_reservation
+           SET business_id = #{targetBusinessId}, inbound_code = #{targetInboundCode},
+               updated_at = CURRENT_TIMESTAMP(3), version = version + 1
+         WHERE id = #{id} AND tenant_id = #{tenantId}
+           AND source_service = #{sourceService} AND business_id = #{sourceBusinessId}
+           AND reservation_status = 'CONFIRMED' AND version = #{version}
+        """)
+    int transferConfirmed(@Param("tenantId") long tenantId, @Param("id") long id,
+                          @Param("sourceService") String sourceService,
+                          @Param("sourceBusinessId") long sourceBusinessId,
+                          @Param("targetBusinessId") long targetBusinessId,
+                          @Param("targetInboundCode") String targetInboundCode,
+                          @Param("version") int version);
 }
diff --git a/warehouse/src/main/java/com/baiyue/warehouse/mapper/PalletLocationReleaseOperationMapper.java b/warehouse/src/main/java/com/baiyue/warehouse/mapper/PalletLocationReleaseOperationMapper.java
new file mode 100644
index 000000000..e9dda39f4
--- /dev/null
+++ b/warehouse/src/main/java/com/baiyue/warehouse/mapper/PalletLocationReleaseOperationMapper.java
@@ -0,0 +1,39 @@
+package com.baiyue.warehouse.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.warehouse.entity.PalletLocationReleaseOperationEntity;
+import org.apache.ibatis.annotations.Insert;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+import org.apache.ibatis.annotations.Update;
+
+/** 已占用托盘库位选择性释放的幂等操作 Mapper。 */
+@Mapper
+public interface PalletLocationReleaseOperationMapper extends BaseMapper<PalletLocationReleaseOperationEntity> {
+    @Insert("""
+        INSERT IGNORE INTO wh_pallet_location_release_operation
+        (id, tenant_id, source_service, business_id, idempotency_key, request_hash, operation_status)
+        VALUES (#{entity.id}, #{entity.tenantId}, #{entity.sourceService}, #{entity.businessId},
+                #{entity.idempotencyKey}, #{entity.requestHash}, 'PROCESSING')
+        """)
+    int insertIfAbsent(@Param("entity") PalletLocationReleaseOperationEntity entity);
+
+    @Select("""
+        SELECT * FROM wh_pallet_location_release_operation
+        WHERE tenant_id = #{tenantId} AND source_service = #{sourceService}
+          AND business_id = #{businessId} AND idempotency_key = #{idempotencyKey}
+        FOR UPDATE
+        """)
+    PalletLocationReleaseOperationEntity lockByKey(@Param("tenantId") long tenantId,
+        @Param("sourceService") String sourceService, @Param("businessId") long businessId,
+        @Param("idempotencyKey") String idempotencyKey);
+
+    @Update("""
+        UPDATE wh_pallet_location_release_operation
+        SET operation_status = 'COMPLETED', response_snapshot = #{responseSnapshot},
+            completed_at = CURRENT_TIMESTAMP(3)
+        WHERE id = #{id} AND operation_status = 'PROCESSING'
+        """)
+    int complete(@Param("id") long id, @Param("responseSnapshot") String responseSnapshot);
+}
diff --git a/warehouse/src/main/java/com/baiyue/warehouse/mapper/PalletLocationSettlementOperationMapper.java b/warehouse/src/main/java/com/baiyue/warehouse/mapper/PalletLocationSettlementOperationMapper.java
new file mode 100644
index 000000000..24579c4e9
--- /dev/null
+++ b/warehouse/src/main/java/com/baiyue/warehouse/mapper/PalletLocationSettlementOperationMapper.java
@@ -0,0 +1,40 @@
+package com.baiyue.warehouse.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.warehouse.entity.PalletLocationSettlementOperationEntity;
+import org.apache.ibatis.annotations.Insert;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+import org.apache.ibatis.annotations.Update;
+
+/** PDA 拣货资源原子结算幂等操作 Mapper。 */
+@Mapper
+public interface PalletLocationSettlementOperationMapper extends BaseMapper<PalletLocationSettlementOperationEntity> {
+    @Insert("""
+        INSERT IGNORE INTO wh_pallet_location_settlement_operation
+        (id, tenant_id, source_service, source_business_id, target_business_id, idempotency_key,
+         request_hash, operation_status)
+        VALUES (#{entity.id}, #{entity.tenantId}, #{entity.sourceService}, #{entity.sourceBusinessId},
+                #{entity.targetBusinessId}, #{entity.idempotencyKey}, #{entity.requestHash}, 'PROCESSING')
+        """)
+    int insertIfAbsent(@Param("entity") PalletLocationSettlementOperationEntity entity);
+
+    @Select("""
+        SELECT * FROM wh_pallet_location_settlement_operation
+        WHERE tenant_id = #{tenantId} AND source_service = #{sourceService}
+          AND source_business_id = #{sourceBusinessId} AND idempotency_key = #{idempotencyKey}
+        FOR UPDATE
+        """)
+    PalletLocationSettlementOperationEntity lockByKey(@Param("tenantId") long tenantId,
+        @Param("sourceService") String sourceService, @Param("sourceBusinessId") long sourceBusinessId,
+        @Param("idempotencyKey") String idempotencyKey);
+
+    @Update("""
+        UPDATE wh_pallet_location_settlement_operation
+        SET operation_status = 'COMPLETED', response_snapshot = #{responseSnapshot},
+            completed_at = CURRENT_TIMESTAMP(3)
+        WHERE id = #{id} AND operation_status = 'PROCESSING'
+        """)
+    int complete(@Param("id") long id, @Param("responseSnapshot") String responseSnapshot);
+}
diff --git a/warehouse/src/main/java/com/baiyue/warehouse/mapper/PalletLocationTransferOperationMapper.java b/warehouse/src/main/java/com/baiyue/warehouse/mapper/PalletLocationTransferOperationMapper.java
new file mode 100644
index 000000000..a1e9148e3
--- /dev/null
+++ b/warehouse/src/main/java/com/baiyue/warehouse/mapper/PalletLocationTransferOperationMapper.java
@@ -0,0 +1,41 @@
+package com.baiyue.warehouse.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.warehouse.entity.PalletLocationTransferOperationEntity;
+import org.apache.ibatis.annotations.Insert;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+import org.apache.ibatis.annotations.Update;
+
+/** 托盘库位转移幂等操作 Mapper。 */
+@Mapper
+public interface PalletLocationTransferOperationMapper extends BaseMapper<PalletLocationTransferOperationEntity> {
+    @Insert("""
+        INSERT IGNORE INTO wh_pallet_location_transfer_operation
+        (id, tenant_id, source_service, source_business_id, target_business_id, idempotency_key,
+         request_hash, operation_status)
+        VALUES (#{entity.id}, #{entity.tenantId}, #{entity.sourceService}, #{entity.sourceBusinessId},
+                #{entity.targetBusinessId}, #{entity.idempotencyKey}, #{entity.requestHash}, 'PROCESSING')
+        """)
+    int insertIfAbsent(@Param("entity") PalletLocationTransferOperationEntity entity);
+
+    @Select("""
+        SELECT * FROM wh_pallet_location_transfer_operation
+        WHERE tenant_id = #{tenantId} AND source_service = #{sourceService}
+          AND source_business_id = #{sourceBusinessId} AND target_business_id = #{targetBusinessId}
+          AND idempotency_key = #{idempotencyKey}
+        FOR UPDATE
+        """)
+    PalletLocationTransferOperationEntity lockByKey(@Param("tenantId") long tenantId,
+        @Param("sourceService") String sourceService, @Param("sourceBusinessId") long sourceBusinessId,
+        @Param("targetBusinessId") long targetBusinessId, @Param("idempotencyKey") String idempotencyKey);
+
+    @Update("""
+        UPDATE wh_pallet_location_transfer_operation
+        SET operation_status = 'COMPLETED', response_snapshot = #{responseSnapshot},
+            completed_at = CURRENT_TIMESTAMP(3)
+        WHERE id = #{id} AND operation_status = 'PROCESSING'
+        """)
+    int complete(@Param("id") long id, @Param("responseSnapshot") String responseSnapshot);
+}
diff --git a/warehouse/src/main/java/com/baiyue/warehouse/repository/LocationRepository.java b/warehouse/src/main/java/com/baiyue/warehouse/repository/LocationRepository.java
index 17c3e0ae6..baebd4605 100644
--- a/warehouse/src/main/java/com/baiyue/warehouse/repository/LocationRepository.java
+++ b/warehouse/src/main/java/com/baiyue/warehouse/repository/LocationRepository.java
@@ -129,6 +129,13 @@ public class LocationRepository {
         return reservations.release(entity.getTenantId(), entity.getId(), entity.getVersion(), reason);
     }
 
+    public int transferConfirmedReservation(LocationReservationEntity entity, String sourceService,
+                                            long sourceBusinessId, long targetBusinessId,
+                                            String targetInboundCode) {
+        return reservations.transferConfirmed(entity.getTenantId(), entity.getId(), sourceService,
+            sourceBusinessId, targetBusinessId, targetInboundCode, entity.getVersion());
+    }
+
     public List<LocationOccupancyEntity> findOccupanciesByBusiness(long tenantId, String sourceService,
                                                                   long businessId) {
         return occupancies.selectList(new LambdaQueryWrapper<LocationOccupancyEntity>()
@@ -143,6 +150,33 @@ public class LocationRepository {
             .eq(LocationOccupancyEntity::getReservationId, reservationId));
     }
 
+    public LocationOccupancyEntity lockOccupancy(long tenantId, long occupancyId) {
+        return occupancies.lockById(tenantId, occupancyId);
+    }
+
+    public int rebindOccupancy(LocationOccupancyEntity entity, LocationEntity target) {
+        return occupancies.rebindLocation(entity.getTenantId(), entity.getId(), target.getId(), target.getLocationCode(),
+            entity.getVersion());
+    }
+
+    public int rebindReservation(LocationReservationEntity entity, LocationEntity target) {
+        return reservations.rebindLocation(entity.getTenantId(), entity.getId(), target.getId(), target.getLocationCode(),
+            entity.getVersion());
+    }
+
+    public int reactivateOccupancy(LocationOccupancyEntity entity, long businessId, String inboundCode,
+                                   LocationEntity target, int packageCount) {
+        return occupancies.reactivateForChild(entity.getTenantId(), entity.getId(), businessId, inboundCode,
+            target.getId(), target.getLocationCode(), Boolean.TRUE.equals(target.getSharedOverflow()), packageCount,
+            entity.getVersion());
+    }
+
+    public int reactivateReservation(LocationReservationEntity entity, long businessId, String inboundCode,
+                                    LocationEntity target) {
+        return reservations.reactivateForChild(entity.getTenantId(), entity.getId(), businessId, inboundCode,
+            target.getId(), target.getLocationCode(), Boolean.TRUE.equals(target.getSharedOverflow()), entity.getVersion());
+    }
+
     public List<LocationOccupancyEntity> lockOccupiedByBusiness(long tenantId, String sourceService,
                                                                  long businessId) {
         return occupancies.lockOccupiedByBusiness(tenantId, sourceService, businessId);
@@ -155,4 +189,10 @@ public class LocationRepository {
     public int releaseOccupancy(LocationOccupancyEntity entity, String reason) {
         return occupancies.release(entity.getTenantId(), entity.getId(), entity.getVersion(), reason);
     }
+
+    public int transferOccupied(LocationOccupancyEntity entity, String sourceService, long sourceBusinessId,
+                                long targetBusinessId, String targetInboundCode, int remainingPackageCount) {
+        return occupancies.transferOccupied(entity.getTenantId(), entity.getId(), sourceService, sourceBusinessId,
+            targetBusinessId, targetInboundCode, remainingPackageCount, entity.getVersion());
+    }
 }
diff --git a/warehouse/src/main/java/com/baiyue/warehouse/repository/PalletLocationReleaseOperationRepository.java b/warehouse/src/main/java/com/baiyue/warehouse/repository/PalletLocationReleaseOperationRepository.java
new file mode 100644
index 000000000..a53b72652
--- /dev/null
+++ b/warehouse/src/main/java/com/baiyue/warehouse/repository/PalletLocationReleaseOperationRepository.java
@@ -0,0 +1,35 @@
+package com.baiyue.warehouse.repository;
+
+import com.baomidou.mybatisplus.core.toolkit.IdWorker;
+import com.baiyue.warehouse.entity.PalletLocationReleaseOperationEntity;
+import com.baiyue.warehouse.mapper.PalletLocationReleaseOperationMapper;
+import jakarta.annotation.Resource;
+import org.springframework.stereotype.Repository;
+
+/** 已占用托盘库位选择性释放的持久化幂等边界。 */
+@Repository
+public class PalletLocationReleaseOperationRepository {
+    @Resource
+    private PalletLocationReleaseOperationMapper mapper;
+
+    public boolean createIfAbsent(long tenantId, String sourceService, long businessId,
+                                  String idempotencyKey, String requestHash) {
+        PalletLocationReleaseOperationEntity entity = new PalletLocationReleaseOperationEntity();
+        entity.setId(IdWorker.getId());
+        entity.setTenantId(tenantId);
+        entity.setSourceService(sourceService);
+        entity.setBusinessId(businessId);
+        entity.setIdempotencyKey(idempotencyKey);
+        entity.setRequestHash(requestHash);
+        return mapper.insertIfAbsent(entity) == 1;
+    }
+
+    public PalletLocationReleaseOperationEntity lockByKey(long tenantId, String sourceService,
+        long businessId, String idempotencyKey) {
+        return mapper.lockByKey(tenantId, sourceService, businessId, idempotencyKey);
+    }
+
+    public void complete(long id, String responseSnapshot) {
+        mapper.complete(id, responseSnapshot);
+    }
+}
diff --git a/warehouse/src/main/java/com/baiyue/warehouse/repository/PalletLocationSettlementOperationRepository.java b/warehouse/src/main/java/com/baiyue/warehouse/repository/PalletLocationSettlementOperationRepository.java
new file mode 100644
index 000000000..02f0a5859
--- /dev/null
+++ b/warehouse/src/main/java/com/baiyue/warehouse/repository/PalletLocationSettlementOperationRepository.java
@@ -0,0 +1,37 @@
+package com.baiyue.warehouse.repository;
+
+import com.baomidou.mybatisplus.core.toolkit.IdWorker;
+import com.baiyue.warehouse.entity.PalletLocationSettlementOperationEntity;
+import com.baiyue.warehouse.mapper.PalletLocationSettlementOperationMapper;
+import jakarta.annotation.Resource;
+import org.springframework.stereotype.Repository;
+
+/** PDA 拣货资源原子结算的持久化幂等边界。 */
+@Repository
+public class PalletLocationSettlementOperationRepository {
+    private static final long PLATFORM_RESOURCE_TENANT_ID = 0L;
+    private static final String FIRSTLEG_SOURCE_SERVICE = "firstleg-service";
+    @Resource
+    private PalletLocationSettlementOperationMapper mapper;
+
+    public boolean createIfAbsent(long sourceBusinessId, long targetBusinessId, String idempotencyKey,
+                                  String requestHash) {
+        PalletLocationSettlementOperationEntity entity = new PalletLocationSettlementOperationEntity();
+        entity.setId(IdWorker.getId());
+        entity.setTenantId(PLATFORM_RESOURCE_TENANT_ID);
+        entity.setSourceService(FIRSTLEG_SOURCE_SERVICE);
+        entity.setSourceBusinessId(sourceBusinessId);
+        entity.setTargetBusinessId(targetBusinessId);
+        entity.setIdempotencyKey(idempotencyKey);
+        entity.setRequestHash(requestHash);
+        return mapper.insertIfAbsent(entity) == 1;
+    }
+
+    public PalletLocationSettlementOperationEntity lockByKey(long sourceBusinessId, String idempotencyKey) {
+        return mapper.lockByKey(PLATFORM_RESOURCE_TENANT_ID, FIRSTLEG_SOURCE_SERVICE, sourceBusinessId, idempotencyKey);
+    }
+
+    public void complete(long id, String responseSnapshot) {
+        mapper.complete(id, responseSnapshot);
+    }
+}
diff --git a/warehouse/src/main/java/com/baiyue/warehouse/repository/PalletLocationTransferOperationRepository.java b/warehouse/src/main/java/com/baiyue/warehouse/repository/PalletLocationTransferOperationRepository.java
new file mode 100644
index 000000000..61f04f2fe
--- /dev/null
+++ b/warehouse/src/main/java/com/baiyue/warehouse/repository/PalletLocationTransferOperationRepository.java
@@ -0,0 +1,36 @@
+package com.baiyue.warehouse.repository;
+
+import com.baomidou.mybatisplus.core.toolkit.IdWorker;
+import com.baiyue.warehouse.entity.PalletLocationTransferOperationEntity;
+import com.baiyue.warehouse.mapper.PalletLocationTransferOperationMapper;
+import jakarta.annotation.Resource;
+import org.springframework.stereotype.Repository;
+
+/** 托盘库位归属转移的幂等操作持久化边界。 */
+@Repository
+public class PalletLocationTransferOperationRepository {
+    @Resource
+    private PalletLocationTransferOperationMapper mapper;
+
+    public boolean createIfAbsent(long tenantId, String sourceService, long sourceBusinessId,
+                                  long targetBusinessId, String idempotencyKey, String requestHash) {
+        PalletLocationTransferOperationEntity entity = new PalletLocationTransferOperationEntity();
+        entity.setId(IdWorker.getId());
+        entity.setTenantId(tenantId);
+        entity.setSourceService(sourceService);
+        entity.setSourceBusinessId(sourceBusinessId);
+        entity.setTargetBusinessId(targetBusinessId);
+        entity.setIdempotencyKey(idempotencyKey);
+        entity.setRequestHash(requestHash);
+        return mapper.insertIfAbsent(entity) == 1;
+    }
+
+    public PalletLocationTransferOperationEntity lockByKey(long tenantId, String sourceService,
+        long sourceBusinessId, long targetBusinessId, String idempotencyKey) {
+        return mapper.lockByKey(tenantId, sourceService, sourceBusinessId, targetBusinessId, idempotencyKey);
+    }
+
+    public void complete(long id, String responseSnapshot) {
+        mapper.complete(id, responseSnapshot);
+    }
+}
diff --git a/warehouse/src/main/java/com/baiyue/warehouse/service/LocationResourceService.java b/warehouse/src/main/java/com/baiyue/warehouse/service/LocationResourceService.java
index 48bd273ad..49e3e2821 100644
--- a/warehouse/src/main/java/com/baiyue/warehouse/service/LocationResourceService.java
+++ b/warehouse/src/main/java/com/baiyue/warehouse/service/LocationResourceService.java
@@ -3,10 +3,14 @@ package com.baiyue.warehouse.service;
 import com.baomidou.mybatisplus.core.toolkit.IdWorker;
 import com.baiyue.common.core.api.ResultCode;
 import com.baiyue.common.core.exception.BizException;
+import com.baiyue.warehouse.dto.LocationDtos;
 import com.baiyue.warehouse.dto.LocationDtos.ActiveResource;
 import com.baiyue.warehouse.dto.LocationDtos.ConfirmCommand;
+import com.baiyue.warehouse.dto.LocationDtos.ExactSelectiveReleaseCommand;
+import com.baiyue.warehouse.dto.LocationDtos.ExactSelectiveReleaseResult;
 import com.baiyue.warehouse.dto.LocationDtos.OccupancyResult;
 import com.baiyue.warehouse.dto.LocationDtos.OccupancyTarget;
+import com.baiyue.warehouse.dto.LocationDtos.OccupiedResource;
 import com.baiyue.warehouse.dto.LocationDtos.ReleaseCommand;
 import com.baiyue.warehouse.dto.LocationDtos.ReservationResult;
 import com.baiyue.warehouse.dto.LocationDtos.ReservationTarget;
@@ -31,6 +35,7 @@ import jakarta.validation.constraints.NotBlank;
 
 import java.time.LocalDateTime;
 import java.util.ArrayList;
+import java.util.Comparator;
 import java.util.HashSet;
 import java.util.LinkedHashMap;
 import java.util.stream.Collectors;
@@ -187,11 +192,13 @@ public class LocationResourceService {
 
     @Transactional
     public List<SelectiveReleaseResult> releaseSelected(@Valid SelectiveReleaseCommand command) {
-        List<LocationOccupancyEntity> active = repository.lockOccupiedByBusiness(
-            command.tenantId(), command.sourceService(), command.businessId());
+        List<LocationOccupancyEntity> active = new ArrayList<>(repository.lockOccupiedByBusiness(
+            command.tenantId(), command.sourceService(), command.businessId()));
         if (active.isEmpty()) {
             throw new BizException(ResultCode.CONFLICT, "No occupied locations are available for this inbound order");
         }
+        active.sort(Comparator.comparingLong(LocationOccupancyEntity::getReservationId)
+            .thenComparingLong(LocationOccupancyEntity::getId));
         requireLimit(active.size());
         List<Integer> packages = packageAllocator.allocate(command.totalPackageCount(), active.size());
         Set<Long> requestedIds = command.locationIds() == null
@@ -245,6 +252,314 @@ public class LocationResourceService {
         return List.copyOf(released);
     }
 
+    /**
+     * Releases only the occupied locations explicitly reported as fully picked by PDA.
+     * The persisted allocated package count is returned verbatim: it must never be recalculated
+     * from the current active location count.
+     */
+    @Transactional
+    public List<ExactSelectiveReleaseResult> releaseSelectedExactly(@Valid ExactSelectiveReleaseCommand command) {
+        List<LocationOccupancyEntity> active = new ArrayList<>(repository.lockOccupiedByBusiness(
+            command.tenantId(), command.sourceService(), command.businessId()));
+        if (active.isEmpty()) {
+            throw new BizException(ResultCode.CONFLICT, "No occupied locations are available for this inbound order");
+        }
+        active.sort(Comparator.comparingLong(LocationOccupancyEntity::getReservationId)
+            .thenComparingLong(LocationOccupancyEntity::getId));
+        Set<Long> requestedIds = new HashSet<>(command.locationIds());
+        if (requestedIds.size() != command.locationIds().size()) {
+            throw new BizException(ResultCode.BAD_REQUEST, "Selected location IDs must be unique");
+        }
+        Map<Long, LocationOccupancyEntity> byLocation = active.stream()
+            .collect(Collectors.toMap(LocationOccupancyEntity::getLocationId, item -> item));
+        if (!requestedIds.stream().allMatch(byLocation::containsKey)) {
+            throw new BizException(ResultCode.FORBIDDEN,
+                "A selected location does not belong to the current inbound order");
+        }
+
+        List<ExactSelectiveReleaseResult> released = new ArrayList<>(requestedIds.size());
+        for (int index = 0; index < active.size(); index++) {
+            LocationOccupancyEntity occupancy = active.get(index);
+            if (!requestedIds.contains(occupancy.getLocationId())) {
+                continue;
+            }
+            Integer allocatedPackageCount = occupancy.getAllocatedPackageCount();
+            if (allocatedPackageCount == null || allocatedPackageCount < 1) {
+                throw new BizException(ResultCode.CONFLICT,
+                    "Occupied location has no valid allocated package count and cannot be released exactly");
+            }
+            LocationEntity location = repository.findOwned(command.tenantId(), occupancy.getWarehouseId(),
+                occupancy.getLocationId());
+            if (location == null || repository.releaseOccupancy(occupancy, command.reason()) != 1
+                || (!Boolean.TRUE.equals(occupancy.getSharedOverflow())
+                    && repository.changeStatus(command.tenantId(), occupancy.getWarehouseId(), occupancy.getLocationId(),
+                        "OCCUPIED", "AVAILABLE", location.getVersion(), command.operatorId()) != 1)) {
+                throw new BizException(ResultCode.CONFLICT,
+                    "Location occupancy changed concurrently while releasing selected locations");
+            }
+            released.add(new ExactSelectiveReleaseResult(occupancy.getReservationId(), occupancy.getId(), index + 1,
+                occupancy.getWarehouseId(), occupancy.getPalletId(), occupancy.getLocationId(),
+                occupancy.getLocationCode(), allocatedPackageCount));
+        }
+        return List.copyOf(released);
+    }
+
+    /** 按 reservationId 释放，避免 A0 多托盘共享同一个 locationId 时误操作。 */
+    @Transactional
+    public List<ExactSelectiveReleaseResult> releaseSelectedReservations(
+        @Valid LocationDtos.ReservationReleaseCommand command) {
+        List<LocationOccupancyEntity> active = new ArrayList<>(repository.lockOccupiedByBusiness(
+            command.tenantId(), command.sourceService(), command.businessId()));
+        Map<Long, LocationOccupancyEntity> byReservation = active.stream()
+            .collect(Collectors.toMap(LocationOccupancyEntity::getReservationId, item -> item));
+        Set<Long> requested = new HashSet<>(command.reservationIds());
+        if (requested.size() != command.reservationIds().size() || !requested.stream().allMatch(byReservation::containsKey)) {
+            throw new BizException(ResultCode.BAD_REQUEST, "释放预占资源不存在或重复");
+        }
+        List<ExactSelectiveReleaseResult> result = new ArrayList<>();
+        for (int index = 0; index < active.size(); index++) {
+            LocationOccupancyEntity occupancy = active.get(index);
+            if (!requested.contains(occupancy.getReservationId())) continue;
+            Integer allocated = occupancy.getAllocatedPackageCount();
+            LocationEntity location = repository.findOwned(command.tenantId(), occupancy.getWarehouseId(), occupancy.getLocationId());
+            if (allocated == null || allocated < 1 || location == null || repository.releaseOccupancy(occupancy, command.reason()) != 1
+                || (!Boolean.TRUE.equals(occupancy.getSharedOverflow()) && repository.changeStatus(command.tenantId(),
+                    occupancy.getWarehouseId(), occupancy.getLocationId(), "OCCUPIED", "AVAILABLE", location.getVersion(),
+                    command.operatorId()) != 1)) {
+                throw new BizException(ResultCode.CONFLICT, "释放库位资源时发生并发变更");
+            }
+            result.add(new ExactSelectiveReleaseResult(occupancy.getReservationId(), occupancy.getId(), index + 1,
+                occupancy.getWarehouseId(), occupancy.getPalletId(), occupancy.getLocationId(), occupancy.getLocationCode(), allocated));
+        }
+        return List.copyOf(result);
+    }
+
+    /**
+     * 将未拣货的已占用库位从主入库单转给二级子入库单。
+     * 转移只改变业务归属和剩余箱数，不释放库位或托盘。
+     */
+    @Transactional
+    public List<LocationDtos.TransferResult> transferToChild(@Valid LocationDtos.TransferCommand command) {
+        if (command.sourceBusinessId() == command.targetBusinessId()) {
+            throw new BizException(ResultCode.BAD_REQUEST, "来源和目标入库单不能相同");
+        }
+        validateTransferItems(command.items());
+        List<LocationOccupancyEntity> active = new ArrayList<>(repository.lockOccupiedByBusiness(
+            command.tenantId(), command.sourceService(), command.sourceBusinessId()));
+        if (active.isEmpty()) {
+            throw new BizException(ResultCode.CONFLICT, "来源入库单没有可转移的已占用库位");
+        }
+        active.sort(Comparator.comparingLong(LocationOccupancyEntity::getReservationId)
+            .thenComparingLong(LocationOccupancyEntity::getId));
+        Map<Long, LocationDtos.TransferItem> requested = command.items().stream()
+            .collect(Collectors.toMap(LocationDtos.TransferItem::locationId, item -> item));
+        Map<Long, LocationOccupancyEntity> byLocation = active.stream()
+            .collect(Collectors.toMap(LocationOccupancyEntity::getLocationId, item -> item));
+        if (!requested.keySet().stream().allMatch(byLocation::containsKey)) {
+            throw new BizException(ResultCode.FORBIDDEN, "转移库位不属于来源入库单");
+        }
+        List<LocationDtos.TransferResult> results = new ArrayList<>(requested.size());
+        for (int index = 0; index < active.size(); index++) {
+            LocationOccupancyEntity occupancy = active.get(index);
+            LocationDtos.TransferItem item = requested.get(occupancy.getLocationId());
+            if (item == null) {
+                continue;
+            }
+            LocationReservationEntity reservation = repository.lockReservation(
+                command.tenantId(), occupancy.getReservationId());
+            if (reservation == null || !"CONFIRMED".equals(reservation.getReservationStatus())
+                || !command.sourceService().equals(reservation.getSourceService())
+                || reservation.getBusinessId() != command.sourceBusinessId()
+                || !command.sourceService().equals(occupancy.getSourceService())
+                || occupancy.getBusinessId() != command.sourceBusinessId()) {
+                throw new BizException(ResultCode.CONFLICT, "库位占用不是可转移的已确认资源");
+            }
+            Integer allocated = occupancy.getAllocatedPackageCount();
+            if (allocated == null || item.remainingPackageCount() > allocated) {
+                throw new BizException(ResultCode.BAD_REQUEST, "剩余箱数不能超过库位原分配箱数");
+            }
+            if (repository.transferConfirmedReservation(reservation, command.sourceService(),
+                command.sourceBusinessId(), command.targetBusinessId(), command.targetInboundCode()) != 1) {
+                throw new BizException(ResultCode.CONFLICT, "库位预占归属并发变更，请刷新后重试");
+            }
+            if (repository.transferOccupied(occupancy, command.sourceService(), command.sourceBusinessId(),
+                command.targetBusinessId(), command.targetInboundCode(), item.remainingPackageCount()) != 1) {
+                throw new BizException(ResultCode.CONFLICT, "库位占用归属并发变更，请刷新后重试");
+            }
+            results.add(new LocationDtos.TransferResult(reservation.getId(), reservation.getReservationNo(),
+                occupancy.getId(), index + 1, occupancy.getWarehouseId(), occupancy.getPalletId(),
+                occupancy.getPalletCode(), occupancy.getLocationId(), occupancy.getLocationCode(),
+                occupancy.getAllocatedVolumeCbm(), item.remainingPackageCount(), "OCCUPIED"));
+        }
+        return List.copyOf(results);
+    }
+
+    /** PDA 结算按预约记录转移未拣货资源，物理托盘和库位继续保持占用。 */
+    @Transactional
+    public List<LocationDtos.TransferResult> transferToChildByReservation(
+        @Valid LocationDtos.ReservationTransferCommand command) {
+        if (command.sourceBusinessId() == command.targetBusinessId()) {
+            throw new BizException(ResultCode.BAD_REQUEST, "来源和目标入库单不能相同");
+        }
+        validateReservationTransferItems(command.items());
+        List<LocationOccupancyEntity> active = occupiedResources(command.tenantId(), command.sourceService(),
+            command.sourceBusinessId());
+        Map<Long, LocationDtos.ReservationTransferItem> requested = command.items().stream()
+            .collect(Collectors.toMap(LocationDtos.ReservationTransferItem::reservationId, item -> item));
+        Map<Long, LocationOccupancyEntity> byReservation = active.stream()
+            .collect(Collectors.toMap(LocationOccupancyEntity::getReservationId, item -> item));
+        if (!requested.keySet().stream().allMatch(byReservation::containsKey)) {
+            throw new BizException(ResultCode.FORBIDDEN, "转移预约记录不属于来源入库单");
+        }
+
+        List<LocationDtos.TransferResult> results = new ArrayList<>(requested.size());
+        for (int index = 0; index < active.size(); index++) {
+            LocationOccupancyEntity occupancy = active.get(index);
+            LocationDtos.ReservationTransferItem item = requested.get(occupancy.getReservationId());
+            if (item == null) {
+                continue;
+            }
+            LocationReservationEntity reservation = repository.lockReservation(command.tenantId(),
+                occupancy.getReservationId());
+            if (reservation == null || !"CONFIRMED".equals(reservation.getReservationStatus())
+                || !command.sourceService().equals(reservation.getSourceService())
+                || reservation.getBusinessId() != command.sourceBusinessId()
+                || !command.sourceService().equals(occupancy.getSourceService())
+                || occupancy.getBusinessId() != command.sourceBusinessId()) {
+                throw new BizException(ResultCode.CONFLICT, "预约记录不是可转移的已确认资源");
+            }
+            Integer allocated = occupancy.getAllocatedPackageCount();
+            if (allocated == null || item.remainingPackageCount() > allocated) {
+                throw new BizException(ResultCode.BAD_REQUEST, "剩余箱数不能超过预约记录原分配箱数");
+            }
+            if (repository.transferConfirmedReservation(reservation, command.sourceService(),
+                command.sourceBusinessId(), command.targetBusinessId(), command.targetInboundCode()) != 1
+                || repository.transferOccupied(occupancy, command.sourceService(), command.sourceBusinessId(),
+                    command.targetBusinessId(), command.targetInboundCode(), item.remainingPackageCount()) != 1) {
+                throw new BizException(ResultCode.CONFLICT, "预约记录归属并发变更，请刷新后重试");
+            }
+            results.add(new LocationDtos.TransferResult(reservation.getId(), reservation.getReservationNo(),
+                occupancy.getId(), index + 1, occupancy.getWarehouseId(), occupancy.getPalletId(),
+                occupancy.getPalletCode(), occupancy.getLocationId(), occupancy.getLocationCode(),
+                occupancy.getAllocatedVolumeCbm(), item.remainingPackageCount(), "OCCUPIED"));
+        }
+        return List.copyOf(results);
+    }
+
+    /**
+     * 锁定读取来源入库单的全部已占用资源，供外层原子结算先校验数量守恒后再写入。
+     * 调用方必须处于同一个写事务中，锁会持续至结算完成或回滚。
+     */
+    public List<OccupiedResource> lockOccupiedResources(long tenantId, String sourceService, long businessId) {
+        return occupiedResources(tenantId, sourceService, businessId).stream()
+            .map(item -> new OccupiedResource(item.getReservationId(), item.getId(), 0,
+                item.getWarehouseId(), item.getPalletId(), item.getLocationId(), item.getLocationCode(),
+                Boolean.TRUE.equals(item.getSharedOverflow()), requireAllocatedPackageCount(item)))
+            .toList();
+    }
+
+    /** 将 A0 的一条托盘占用换绑到同仓空闲普通库位。 */
+    @Transactional
+    public LocationDtos.RebindTemporaryLocationResult rebindTemporaryLocation(
+        @Valid LocationDtos.RebindTemporaryLocationCommand command) {
+        LocationOccupancyEntity occupancy = repository.lockOccupancy(command.tenantId(), command.occupancyId());
+        if (occupancy == null || !"OCCUPIED".equals(occupancy.getOccupancyStatus())) {
+            throw new BizException(ResultCode.NOT_FOUND, "临时库位占用不存在");
+        }
+        LocationEntity target = repository.findOwned(command.tenantId(), occupancy.getWarehouseId(), command.targetLocationId());
+        if (target == null || Boolean.TRUE.equals(target.getSharedOverflow())) {
+            throw new BizException(ResultCode.BAD_REQUEST, "目标库位必须是同仓普通库位");
+        }
+        if (!Boolean.TRUE.equals(occupancy.getSharedOverflow())) {
+            if (occupancy.getLocationId().equals(target.getId())) {
+                return new LocationDtos.RebindTemporaryLocationResult(occupancy.getId(), occupancy.getReservationId(),
+                    occupancy.getWarehouseId(), occupancy.getPalletId(), occupancy.getLocationId(), occupancy.getLocationCode(),
+                    target.getId(), target.getLocationCode());
+            }
+            throw new BizException(ResultCode.CONFLICT, "只有A0临时库位允许换绑");
+        }
+        if (!"AVAILABLE".equals(target.getStatus())
+            || repository.changeStatus(command.tenantId(), occupancy.getWarehouseId(), target.getId(), "AVAILABLE", "OCCUPIED",
+                target.getVersion(), command.operatorId()) != 1) {
+            throw new BizException(ResultCode.CONFLICT, "目标库位已被占用");
+        }
+        LocationReservationEntity reservation = repository.lockReservation(command.tenantId(), occupancy.getReservationId());
+        long oldLocationId = occupancy.getLocationId();
+        String oldLocationCode = occupancy.getLocationCode();
+        if (reservation == null || repository.rebindReservation(reservation, target) != 1
+            || repository.rebindOccupancy(occupancy, target) != 1) {
+            throw new BizException(ResultCode.CONFLICT, "临时库位换绑时发生并发变更");
+        }
+        return new LocationDtos.RebindTemporaryLocationResult(occupancy.getId(), occupancy.getReservationId(),
+            occupancy.getWarehouseId(), occupancy.getPalletId(), oldLocationId, oldLocationCode,
+            target.getId(), target.getLocationCode());
+    }
+
+    /** 全部释放后为子单重新占用同仓普通库位；普通库位不足时使用共享 A0。 */
+    @Transactional
+    public LocationDtos.TransferResult reactivateReleasedForChild(
+        @Valid LocationDtos.ReactivateReleasedResourceCommand command) {
+        LocationOccupancyEntity found = repository.findOccupancyByReservation(command.tenantId(), command.reservationId());
+        LocationOccupancyEntity occupancy = found == null ? null : repository.lockOccupancy(command.tenantId(), found.getId());
+        if (occupancy == null || !"RELEASED".equals(occupancy.getOccupancyStatus())
+            || occupancy.getWarehouseId() != command.warehouseId()) {
+            throw new BizException(ResultCode.CONFLICT, "待重新分配的已释放资源不存在");
+        }
+        List<LocationEntity> available = repository.lockAvailable(command.tenantId(), command.warehouseId(), 1);
+        LocationEntity target = available.isEmpty() ? repository.lockOrCreateSharedOverflow(command.tenantId(),
+            command.warehouseId(), command.operatorId()) : available.get(0);
+        if (!Boolean.TRUE.equals(target.getSharedOverflow()) && repository.changeStatus(command.tenantId(), command.warehouseId(),
+            target.getId(), "AVAILABLE", "OCCUPIED", target.getVersion(), command.operatorId()) != 1) {
+            throw new BizException(ResultCode.CONFLICT, "重新分配的目标库位发生并发变更");
+        }
+        LocationReservationEntity reservation = repository.lockReservation(command.tenantId(), occupancy.getReservationId());
+        if (reservation == null || repository.reactivateReservation(reservation, command.targetBusinessId(),
+            command.targetInboundCode(), target) != 1 || repository.reactivateOccupancy(occupancy,
+            command.targetBusinessId(), command.targetInboundCode(), target, command.packageCount()) != 1) {
+            throw new BizException(ResultCode.CONFLICT, "重新分配子单库位时发生并发变更");
+        }
+        return new LocationDtos.TransferResult(reservation.getId(), reservation.getReservationNo(), occupancy.getId(), 1,
+            command.warehouseId(), occupancy.getPalletId(), occupancy.getPalletCode(), target.getId(), target.getLocationCode(),
+            occupancy.getAllocatedVolumeCbm(), command.packageCount(), "OCCUPIED");
+    }
+
+    private static void validateTransferItems(List<LocationDtos.TransferItem> items) {
+        Set<Long> ids = new HashSet<>();
+        for (LocationDtos.TransferItem item : items) {
+            if (!ids.add(item.locationId())) {
+                throw new BizException(ResultCode.BAD_REQUEST, "转移库位不能重复");
+            }
+        }
+    }
+
+    private static void validateReservationTransferItems(List<LocationDtos.ReservationTransferItem> items) {
+        Set<Long> ids = new HashSet<>();
+        for (LocationDtos.ReservationTransferItem item : items) {
+            if (!ids.add(item.reservationId())) {
+                throw new BizException(ResultCode.BAD_REQUEST, "转移预约记录不能重复");
+            }
+        }
+    }
+
+    private List<LocationOccupancyEntity> occupiedResources(long tenantId, String sourceService, long businessId) {
+        List<LocationOccupancyEntity> active = new ArrayList<>(repository.lockOccupiedByBusiness(tenantId,
+            sourceService, businessId));
+        if (active.isEmpty()) {
+            throw new BizException(ResultCode.CONFLICT, "来源入库单没有可用的已占用库位资源");
+        }
+        active.sort(Comparator.comparingLong(LocationOccupancyEntity::getReservationId)
+            .thenComparingLong(LocationOccupancyEntity::getId));
+        return active;
+    }
+
+    private static int requireAllocatedPackageCount(LocationOccupancyEntity occupancy) {
+        Integer allocated = occupancy.getAllocatedPackageCount();
+        if (allocated == null || allocated < 1) {
+            throw new BizException(ResultCode.CONFLICT, "已占用资源缺少有效分配箱数");
+        }
+        return allocated;
+    }
+
     @Transactional(readOnly = true)
     public List<ActiveResource> findActiveResources(@Min(1) long tenantId,
                                                     @NotBlank String sourceService,
diff --git a/warehouse/src/main/java/com/baiyue/warehouse/service/PalletLocationAllocationService.java b/warehouse/src/main/java/com/baiyue/warehouse/service/PalletLocationAllocationService.java
index 98dcac790..57123741f 100644
--- a/warehouse/src/main/java/com/baiyue/warehouse/service/PalletLocationAllocationService.java
+++ b/warehouse/src/main/java/com/baiyue/warehouse/service/PalletLocationAllocationService.java
@@ -6,7 +6,15 @@ import com.baiyue.common.core.exception.BizException;
 import com.baiyue.warehouse.dto.LocationDtos;
 import com.baiyue.warehouse.dto.PalletAllocationDtos;
 import com.baiyue.warehouse.entity.PalletEntity;
+import com.baiyue.warehouse.entity.PalletLocationTransferOperationEntity;
+import com.baiyue.warehouse.entity.PalletLocationReleaseOperationEntity;
+import com.baiyue.warehouse.entity.PalletLocationSettlementOperationEntity;
 import com.baiyue.warehouse.repository.PalletRepository;
+import com.baiyue.warehouse.repository.PalletLocationTransferOperationRepository;
+import com.baiyue.warehouse.repository.PalletLocationReleaseOperationRepository;
+import com.baiyue.warehouse.repository.PalletLocationSettlementOperationRepository;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import jakarta.annotation.Resource;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -14,6 +22,10 @@ import org.springframework.transaction.annotation.Transactional;
 import java.util.ArrayList;
 import java.util.Comparator;
 import java.util.List;
+import java.util.stream.Collectors;
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
 
 /**
  * 托盘拆分和一托一位编排。库位资源操作全部委托给任务6的 {@link LocationResourceService}。
@@ -22,12 +34,24 @@ import java.util.List;
 public class PalletLocationAllocationService {
     /** 测量完成后默认推荐的普通托盘类型编码。 */
     public static final String DEFAULT_PALLET_TYPE = "STANDARD";
+    /** 仓库、托盘和库位属于平台公共资源域。 */
+    private static final long PLATFORM_RESOURCE_TENANT_ID = 0L;
+    /** 仅头程服务可结算头程入库单占用的仓储资源。 */
+    private static final String FIRSTLEG_SOURCE_SERVICE = "firstleg-service";
     @Resource
     private PalletRepository palletRepository;
     @Resource
     private PalletVolumeSplitter splitter;
     @Resource
     private LocationResourceService locationResourceService;
+    @Resource
+    private PalletLocationTransferOperationRepository transferOperations;
+    @Resource
+    private PalletLocationReleaseOperationRepository releaseOperations;
+    @Resource
+    private PalletLocationSettlementOperationRepository settlementOperations;
+    @Resource
+    private ObjectMapper objectMapper;
 
     @Transactional
     @BusinessAudit(event = "PALLET_LOCATION_RESERVE", resourceType = "INBOUND", resourceId = "#request.businessId", description = "预占托盘和库位", captureBefore = false)
@@ -134,23 +158,378 @@ public class PalletLocationAllocationService {
         resourceId = "#request.businessId", description = "Release selected occupied locations for picking")
     public List<PalletAllocationDtos.SelectiveReleaseResult> releaseSelected(
         PalletAllocationDtos.SelectiveReleaseRequest request) {
-        List<LocationDtos.SelectiveReleaseResult> released = locationResourceService.releaseSelected(
-            new LocationDtos.SelectiveReleaseCommand(request.tenantId(), request.sourceService(), request.businessId(),
-                request.operatorId(), request.reason(), request.totalPackageCount(), request.locationIds(),
-                request.releaseLocationCount()));
+        String key = request.idempotencyKey().trim();
+        String requestHash = selectiveReleaseRequestHash(request);
+        boolean created = releaseOperations.createIfAbsent(request.tenantId(), request.sourceService(),
+            request.businessId(), key, requestHash);
+        PalletLocationReleaseOperationEntity operation = releaseOperations.lockByKey(request.tenantId(),
+            request.sourceService(), request.businessId(), key);
+        if (operation == null) {
+            throw new BizException(ResultCode.CONFLICT, "Selected release idempotency operation is missing");
+        }
+        if (!requestHash.equals(operation.getRequestHash())) {
+            throw new BizException(ResultCode.CONFLICT, "Idempotency key has already been used for a different selected release request");
+        }
+        if (!created) {
+            if ("COMPLETED".equals(operation.getOperationStatus())) {
+                return replaySelectiveReleaseResult(operation.getResponseSnapshot());
+            }
+            throw new BizException(ResultCode.CONFLICT, "Selected release request is being processed, retry later");
+        }
+        List<LocationDtos.ExactSelectiveReleaseResult> released = locationResourceService.releaseSelectedExactly(
+            new LocationDtos.ExactSelectiveReleaseCommand(request.tenantId(), request.sourceService(), request.businessId(),
+                request.operatorId(), request.reason(), request.locationIds()));
         List<PalletAllocationDtos.SelectiveReleaseResult> result = new ArrayList<>(released.size());
-        for (LocationDtos.SelectiveReleaseResult resource : released) {
+        for (LocationDtos.ExactSelectiveReleaseResult resource : released) {
             if (palletRepository.transitionStatus(request.tenantId(), resource.warehouseId(), resource.palletId(),
                 List.of("OCCUPIED"), "AVAILABLE") != 1) {
                 throw new BizException(ResultCode.CONFLICT, "Pallet changed concurrently during selected release");
             }
             result.add(new PalletAllocationDtos.SelectiveReleaseResult(resource.reservationId(),
                 resource.occupancyId(), resource.allocationNo(), resource.palletId(), resource.locationId(),
-                resource.locationCode(), resource.releasedPackageCount()));
+                resource.locationCode(), resource.allocatedPackageCount()));
+        }
+        List<PalletAllocationDtos.SelectiveReleaseResult> immutable = List.copyOf(result);
+        releaseOperations.complete(operation.getId(), serializeSelectiveReleaseResult(immutable));
+        return immutable;
+    }
+
+    /**
+     * PDA resource settlement is deliberately one transaction. A resource cannot be released
+     * successfully while the matching remaining resources fail to transfer to the child inbound.
+     */
+    @Transactional
+    @BusinessAudit(event = "PALLET_LOCATION_SETTLEMENT", resourceType = "INBOUND",
+        resourceId = "#request.sourceBusinessId", description = "PDA拣货后原子结算托盘库位资源")
+    public PalletAllocationDtos.SettlementResult settle(PalletAllocationDtos.SettlementRequest request) {
+        validateSettlementScope(request);
+        String key = request.idempotencyKey().trim();
+        String requestHash = settlementRequestHash(request);
+        boolean created = settlementOperations.createIfAbsent(request.sourceBusinessId(), request.targetBusinessId(),
+            key, requestHash);
+        PalletLocationSettlementOperationEntity operation = settlementOperations.lockByKey(request.sourceBusinessId(), key);
+        if (operation == null) {
+            throw new BizException(ResultCode.CONFLICT, "PDA settlement idempotency operation is missing");
+        }
+        if (!requestHash.equals(operation.getRequestHash())) {
+            throw new BizException(ResultCode.CONFLICT, "Idempotency key has already been used for a different PDA settlement request");
+        }
+        if (!created) {
+            if ("COMPLETED".equals(operation.getOperationStatus())) {
+                return replaySettlementResult(operation.getResponseSnapshot());
+            }
+            throw new BizException(ResultCode.CONFLICT, "PDA settlement request is being processed, retry later");
+        }
+
+        List<LocationDtos.OccupiedResource> sourceResources = locationResourceService.lockOccupiedResources(
+            PLATFORM_RESOURCE_TENANT_ID, FIRSTLEG_SOURCE_SERVICE, request.sourceBusinessId());
+        validateSettlement(request, sourceResources);
+
+        List<PalletAllocationDtos.SelectiveReleaseResult> released = releasePickedResources(request);
+        List<PalletAllocationDtos.TransferResult> transferred = transferRemainingResources(request);
+        PalletAllocationDtos.SettlementResult result = new PalletAllocationDtos.SettlementResult(released, transferred);
+        settlementOperations.complete(operation.getId(), serializeSettlementResult(result));
+        return result;
+    }
+
+    @Transactional
+    @BusinessAudit(event = "PALLET_LOCATION_REBIND_TEMPORARY", resourceType = "LOCATION_OCCUPANCY",
+        resourceId = "#request.occupancyId", description = "A0临时库位换绑到普通库位")
+    public PalletAllocationDtos.RebindTemporaryLocationResult rebindTemporaryLocation(
+        PalletAllocationDtos.RebindTemporaryLocationRequest request) {
+        LocationDtos.RebindTemporaryLocationResult result = locationResourceService.rebindTemporaryLocation(
+            new LocationDtos.RebindTemporaryLocationCommand(request.tenantId(), request.occupancyId(),
+                request.targetLocationId(), request.operatorId()));
+        return new PalletAllocationDtos.RebindTemporaryLocationResult(result.occupancyId(), result.reservationId(),
+            result.warehouseId(), result.palletId(), result.previousLocationId(), result.previousLocationCode(),
+            result.locationId(), result.locationCode());
+    }
+
+    private List<PalletAllocationDtos.SelectiveReleaseResult> releasePickedResources(
+        PalletAllocationDtos.SettlementRequest request) {
+        if (request.releasedReservationIds().isEmpty()) {
+            return List.of();
+        }
+        List<LocationDtos.ExactSelectiveReleaseResult> released = locationResourceService.releaseSelectedReservations(
+            new LocationDtos.ReservationReleaseCommand(PLATFORM_RESOURCE_TENANT_ID, FIRSTLEG_SOURCE_SERVICE,
+                request.sourceBusinessId(), request.operatorId(), settlementReason(request), request.releasedReservationIds()));
+        List<PalletAllocationDtos.SelectiveReleaseResult> result = new ArrayList<>(released.size());
+        for (LocationDtos.ExactSelectiveReleaseResult resource : released) {
+            if (palletRepository.transitionStatus(PLATFORM_RESOURCE_TENANT_ID, resource.warehouseId(), resource.palletId(),
+                List.of("OCCUPIED"), "AVAILABLE") != 1) {
+                throw new BizException(ResultCode.CONFLICT, "Pallet changed concurrently during PDA settlement");
+            }
+            result.add(new PalletAllocationDtos.SelectiveReleaseResult(resource.reservationId(),
+                resource.occupancyId(), resource.allocationNo(), resource.palletId(), resource.locationId(),
+                resource.locationCode(), resource.allocatedPackageCount()));
         }
         return List.copyOf(result);
     }
 
+    private List<PalletAllocationDtos.TransferResult> transferRemainingResources(
+        PalletAllocationDtos.SettlementRequest request) {
+        if (request.remainingItems().isEmpty()) {
+            return List.of();
+        }
+        List<LocationDtos.TransferResult> transferred = locationResourceService.transferToChildByReservation(
+            new LocationDtos.ReservationTransferCommand(PLATFORM_RESOURCE_TENANT_ID, FIRSTLEG_SOURCE_SERVICE,
+                request.sourceBusinessId(), request.targetBusinessId(), request.targetInboundCode(), request.operatorId(),
+                request.remainingItems().stream()
+                    .map(item -> new LocationDtos.ReservationTransferItem(item.reservationId(),
+                        item.remainingPackageCount()))
+                    .toList()));
+        return transferResults(PLATFORM_RESOURCE_TENANT_ID, transferred);
+    }
+
+    /** Same idempotency key must represent the same resource selection, regardless of request list ordering. */
+    private static String selectiveReleaseRequestHash(PalletAllocationDtos.SelectiveReleaseRequest request) {
+        String locationIds = request.locationIds() == null ? "" : request.locationIds().stream()
+            .sorted()
+            .map(String::valueOf)
+            .collect(Collectors.joining(","));
+        String canonical = request.tenantId() + "|" + request.sourceService().trim() + "|"
+            + request.businessId() + "|" + request.operatorId() + "|" + request.reason().trim() + "|"
+            + locationIds;
+        return sha256(canonical);
+    }
+
+    /** 将未拣货的库位和托盘分配转给二级子入库单，物理资源继续保持占用。 */
+    @Transactional
+    @BusinessAudit(event = "PALLET_LOCATION_TRANSFER", resourceType = "INBOUND",
+        resourceId = "#request.sourceBusinessId", description = "将未拣货库位转给子入库单")
+    public List<PalletAllocationDtos.TransferResult> transfer(PalletAllocationDtos.TransferRequest request) {
+        String key = request.idempotencyKey().trim();
+        String requestHash = transferRequestHash(request);
+        boolean created = transferOperations.createIfAbsent(request.tenantId(), request.sourceService(),
+            request.sourceBusinessId(), request.targetBusinessId(), key, requestHash);
+        PalletLocationTransferOperationEntity operation = transferOperations.lockByKey(request.tenantId(),
+            request.sourceService(), request.sourceBusinessId(), request.targetBusinessId(), key);
+        if (operation == null) {
+            throw new BizException(ResultCode.CONFLICT, "调拨幂等操作记录不存在");
+        }
+        if (!requestHash.equals(operation.getRequestHash())) {
+            throw new BizException(ResultCode.CONFLICT, "幂等键已用于不同的调拨请求");
+        }
+        if (!created) {
+            if ("COMPLETED".equals(operation.getOperationStatus())) {
+                return replayTransferResult(operation.getResponseSnapshot());
+            }
+            throw new BizException(ResultCode.CONFLICT, "调拨请求正在处理中，请稍后重试");
+        }
+        List<PalletAllocationDtos.TransferResult> immutable = transferResources(request.tenantId(), request.sourceService(),
+            request.sourceBusinessId(), request.targetBusinessId(), request.targetInboundCode(), request.operatorId(),
+            request.items());
+        transferOperations.complete(operation.getId(), serializeTransferResult(immutable));
+        return immutable;
+    }
+
+    private List<PalletAllocationDtos.TransferResult> transferResources(long tenantId, String sourceService,
+        long sourceBusinessId, long targetBusinessId, String targetInboundCode, long operatorId,
+        List<PalletAllocationDtos.TransferItem> items) {
+        List<LocationDtos.TransferResult> transferred = locationResourceService.transferToChild(
+            new LocationDtos.TransferCommand(tenantId, sourceService, sourceBusinessId, targetBusinessId,
+                targetInboundCode, operatorId, items.stream()
+                    .map(item -> new LocationDtos.TransferItem(item.locationId(), item.remainingPackageCount()))
+                    .toList()));
+        return transferResults(tenantId, transferred);
+    }
+
+    private List<PalletAllocationDtos.TransferResult> transferResults(long tenantId,
+                                                                       List<LocationDtos.TransferResult> transferred) {
+        List<PalletAllocationDtos.TransferResult> result = new ArrayList<>(transferred.size());
+        for (LocationDtos.TransferResult item : transferred) {
+            PalletEntity pallet = palletRepository.findOwned(tenantId, item.warehouseId(), item.palletId());
+            if (pallet == null || !"OCCUPIED".equals(pallet.getStatus())) {
+                throw new BizException(ResultCode.CONFLICT, "转移托盘不存在或未处于占用状态");
+            }
+            result.add(new PalletAllocationDtos.TransferResult(item.reservationId(), item.reservationNo(),
+                item.occupancyId(), item.allocationNo(), tenantId, item.warehouseId(), item.palletId(),
+                item.palletCode(), pallet.getCapacityCbm(), item.locationId(), item.locationCode(),
+                item.allocatedVolumeCbm(), item.remainingPackageCount(), item.state()));
+        }
+        return List.copyOf(result);
+    }
+
+    /** 同一幂等键必须携带完全一致的调拨目标和库位箱数。 */
+    private static String transferRequestHash(PalletAllocationDtos.TransferRequest request) {
+        String items = request.items().stream()
+            .sorted(Comparator.comparingLong(PalletAllocationDtos.TransferItem::locationId))
+            .map(item -> item.locationId() + ":" + item.remainingPackageCount())
+            .collect(Collectors.joining(","));
+        String canonical = request.tenantId() + "|" + request.sourceService().trim() + "|"
+            + request.sourceBusinessId() + "|" + request.targetBusinessId() + "|"
+            + request.targetInboundCode().trim() + "|" + request.operatorId() + "|" + items;
+        return sha256(canonical);
+    }
+
+    private static String settlementRequestHash(PalletAllocationDtos.SettlementRequest request) {
+        String released = request.releasedReservationIds().stream().sorted().map(String::valueOf)
+            .collect(Collectors.joining(","));
+        String remaining = request.remainingItems().stream()
+            .sorted(Comparator.comparingLong(PalletAllocationDtos.SettlementTransferItem::reservationId))
+            .map(item -> item.reservationId() + ":" + item.remainingPackageCount())
+            .collect(Collectors.joining(","));
+        return sha256(request.warehouseId() + "|" + request.sourceService().trim() + "|"
+            + request.sourceBusinessId() + "|" + request.targetBusinessId() + "|" + request.sourcePackageCount()
+            + "|" + request.targetPackageCount() + "|" + normalize(request.targetInboundCode()) + "|"
+            + request.operatorId() + "|" + normalize(request.operatorName()) + "|"
+            + request.requestId().trim() + "|" + released + "|" + remaining);
+    }
+
+    private static void validateSettlementScope(PalletAllocationDtos.SettlementRequest request) {
+        if (!FIRSTLEG_SOURCE_SERVICE.equals(request.sourceService())) {
+            throw new BizException(ResultCode.FORBIDDEN, "PDA仓储资源仅允许头程服务结算");
+        }
+    }
+
+    private static String settlementReason(PalletAllocationDtos.SettlementRequest request) {
+        String operator = normalize(request.operatorName());
+        return operator.isEmpty() ? "PDA拣货资源结算:" + request.requestId().trim()
+            : "PDA拣货资源结算:" + request.requestId().trim() + "，操作人:" + operator;
+    }
+
+    private static void validateSettlement(PalletAllocationDtos.SettlementRequest request,
+                                           List<LocationDtos.OccupiedResource> sourceResources) {
+        java.util.Set<Long> releasedIds = new java.util.HashSet<>(request.releasedReservationIds());
+        if (releasedIds.size() != request.releasedReservationIds().size()) {
+            throw new BizException(ResultCode.BAD_REQUEST, "已拣满预约记录不能重复");
+        }
+        java.util.Map<Long, PalletAllocationDtos.SettlementTransferItem> remainingByReservation =
+            request.remainingItems().stream().collect(Collectors.toMap(
+                PalletAllocationDtos.SettlementTransferItem::reservationId, item -> item,
+                (first, duplicate) -> {
+                    throw new BizException(ResultCode.BAD_REQUEST, "剩余预约记录不能重复");
+                }));
+        if (releasedIds.stream().anyMatch(remainingByReservation::containsKey)) {
+            throw new BizException(ResultCode.BAD_REQUEST, "同一预约记录不能同时释放和转移");
+        }
+        if (releasedIds.isEmpty() && remainingByReservation.isEmpty()) {
+            throw new BizException(ResultCode.BAD_REQUEST, "PDA结算必须指定已拣满或剩余的预约记录");
+        }
+
+        java.util.Map<Long, LocationDtos.OccupiedResource> sourceByReservation = sourceResources.stream()
+            .collect(Collectors.toMap(LocationDtos.OccupiedResource::reservationId, item -> item,
+                (first, duplicate) -> {
+                    throw new BizException(ResultCode.CONFLICT, "同一预约记录存在多条活动占用");
+                }));
+        java.util.Set<Long> selectedIds = new java.util.HashSet<>(releasedIds);
+        selectedIds.addAll(remainingByReservation.keySet());
+        if (!sourceByReservation.keySet().equals(selectedIds)) {
+            throw new BizException(ResultCode.FORBIDDEN, "PDA结算预约记录必须完整且属于来源入库单");
+        }
+
+        int allocatedTotal = 0;
+        int pickedTotal = 0;
+        int remainingTotal = 0;
+        for (LocationDtos.OccupiedResource resource : sourceResources) {
+            if (resource.warehouseId() != request.warehouseId()) {
+                throw new BizException(ResultCode.FORBIDDEN, "PDA结算预约记录不属于指定仓库");
+            }
+            allocatedTotal = addPackages(allocatedTotal, resource.allocatedPackageCount());
+            PalletAllocationDtos.SettlementTransferItem remaining = remainingByReservation.get(resource.reservationId());
+            if (releasedIds.contains(resource.reservationId())) {
+                pickedTotal = addPackages(pickedTotal, resource.allocatedPackageCount());
+                continue;
+            }
+            if (remaining.remainingPackageCount() > resource.allocatedPackageCount()) {
+                throw new BizException(ResultCode.BAD_REQUEST, "剩余箱数不能超过预约记录原分配箱数");
+            }
+            remainingTotal = addPackages(remainingTotal, remaining.remainingPackageCount());
+            pickedTotal = addPackages(pickedTotal, resource.allocatedPackageCount() - remaining.remainingPackageCount());
+        }
+        if (request.sourcePackageCount() != allocatedTotal) {
+            throw new BizException(ResultCode.CONFLICT, "来源入库单箱数与当前库位分配箱数不一致");
+        }
+        if (request.targetPackageCount() != remainingTotal) {
+            throw new BizException(ResultCode.BAD_REQUEST, "目标入库单箱数必须等于剩余预约记录箱数合计");
+        }
+        if (request.sourcePackageCount() != addPackages(pickedTotal, request.targetPackageCount())) {
+            throw new BizException(ResultCode.BAD_REQUEST, "来源箱数必须等于已拣箱数与目标箱数之和");
+        }
+        if (request.targetPackageCount() > 0
+            && (request.targetBusinessId() < 1 || request.sourceBusinessId() == request.targetBusinessId())) {
+            throw new BizException(ResultCode.BAD_REQUEST, "存在剩余箱数时必须指定不同的子入库单");
+        }
+        if (request.targetPackageCount() > 0 && !org.springframework.util.StringUtils.hasText(request.targetInboundCode())) {
+            throw new BizException(ResultCode.BAD_REQUEST, "存在剩余箱数时必须指定子入库单号");
+        }
+    }
+
+    private static int addPackages(int current, int increment) {
+        try {
+            return Math.addExact(current, increment);
+        } catch (ArithmeticException exception) {
+            throw new BizException(ResultCode.BAD_REQUEST, "箱数合计超出允许范围");
+        }
+    }
+
+    private static String normalize(String value) {
+        return value == null ? "" : value.trim();
+    }
+
+    private static String sha256(String canonical) {
+        try {
+            byte[] digest = MessageDigest.getInstance("SHA-256").digest(canonical.getBytes(StandardCharsets.UTF_8));
+            StringBuilder value = new StringBuilder(64);
+            for (byte item : digest) {
+                value.append(String.format("%02x", item));
+            }
+            return value.toString();
+        } catch (NoSuchAlgorithmException exception) {
+            throw new IllegalStateException("SHA-256 算法不可用", exception);
+        }
+    }
+
+    private String serializeSelectiveReleaseResult(List<PalletAllocationDtos.SelectiveReleaseResult> result) {
+        try {
+            return objectMapper.writeValueAsString(result);
+        } catch (Exception exception) {
+            throw new BizException(ResultCode.CONFLICT, "Selected release result snapshot could not be saved");
+        }
+    }
+
+    private List<PalletAllocationDtos.SelectiveReleaseResult> replaySelectiveReleaseResult(String snapshot) {
+        try {
+            return List.copyOf(objectMapper.readValue(snapshot,
+                new TypeReference<List<PalletAllocationDtos.SelectiveReleaseResult>>() { }));
+        } catch (Exception exception) {
+            throw new BizException(ResultCode.CONFLICT, "Selected release idempotency result snapshot is invalid");
+        }
+    }
+
+    private String serializeSettlementResult(PalletAllocationDtos.SettlementResult result) {
+        try {
+            return objectMapper.writeValueAsString(result);
+        } catch (Exception exception) {
+            throw new BizException(ResultCode.CONFLICT, "PDA settlement result snapshot could not be saved");
+        }
+    }
+
+    private PalletAllocationDtos.SettlementResult replaySettlementResult(String snapshot) {
+        try {
+            return objectMapper.readValue(snapshot, PalletAllocationDtos.SettlementResult.class);
+        } catch (Exception exception) {
+            throw new BizException(ResultCode.CONFLICT, "PDA settlement idempotency result snapshot is invalid");
+        }
+    }
+
+    private String serializeTransferResult(List<PalletAllocationDtos.TransferResult> result) {
+        try {
+            return objectMapper.writeValueAsString(result);
+        } catch (Exception exception) {
+            throw new BizException(ResultCode.CONFLICT, "调拨结果快照保存失败");
+        }
+    }
+
+    private List<PalletAllocationDtos.TransferResult> replayTransferResult(String snapshot) {
+        try {
+            return List.copyOf(objectMapper.readValue(snapshot,
+                new TypeReference<List<PalletAllocationDtos.TransferResult>>() { }));
+        } catch (Exception exception) {
+            throw new BizException(ResultCode.CONFLICT, "调拨幂等结果快照无效");
+        }
+    }
+
     private List<LocationDtos.ActiveResource> active(long tenantId, String sourceService, long businessId) {
         return new ArrayList<>(locationResourceService.findActiveResources(tenantId, sourceService, businessId));
     }
diff --git a/warehouse/src/main/resources/db/phase3-pallet-location-release-idempotency.sql b/warehouse/src/main/resources/db/phase3-pallet-location-release-idempotency.sql
new file mode 100644
index 000000000..82d6b7c89
--- /dev/null
+++ b/warehouse/src/main/resources/db/phase3-pallet-location-release-idempotency.sql
@@ -0,0 +1,19 @@
+-- PDA 已拣满库位/托盘精确释放的持久化幂等契约；可在二期库位表建表后重复执行。
+SET NAMES utf8mb4;
+
+CREATE TABLE IF NOT EXISTS wh_pallet_location_release_operation (
+  id BIGINT UNSIGNED NOT NULL COMMENT '精确释放幂等操作ID',
+  tenant_id BIGINT UNSIGNED NOT NULL COMMENT '仓储公共资源作用域，固定为0',
+  source_service VARCHAR(40) NOT NULL COMMENT '来源服务',
+  business_id BIGINT UNSIGNED NOT NULL COMMENT '入库单ID',
+  idempotency_key VARCHAR(128) NOT NULL COMMENT '调用方幂等键',
+  request_hash CHAR(64) NOT NULL COMMENT '规范化请求SHA-256摘要',
+  operation_status VARCHAR(20) NOT NULL DEFAULT 'PROCESSING' COMMENT 'PROCESSING处理中，COMPLETED已完成',
+  response_snapshot JSON NULL COMMENT '完成后的精确释放结果快照，用于重复请求重放',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '创建时间',
+  completed_at DATETIME(3) NULL COMMENT '完成时间',
+  PRIMARY KEY (id),
+  UNIQUE KEY uk_pallet_location_release_idempotency
+    (tenant_id, source_service, business_id, idempotency_key),
+  KEY idx_pallet_location_release_business (tenant_id, source_service, business_id, operation_status)
+) ENGINE=InnoDB COMMENT='PDA已拣满托盘库位精确释放的持久化幂等操作记录';
diff --git a/warehouse/src/main/resources/db/phase3-pallet-location-settlement-idempotency.sql b/warehouse/src/main/resources/db/phase3-pallet-location-settlement-idempotency.sql
new file mode 100644
index 000000000..92514c28c
--- /dev/null
+++ b/warehouse/src/main/resources/db/phase3-pallet-location-settlement-idempotency.sql
@@ -0,0 +1,27 @@
+-- PDA 拣货资源原子结算幂等契约；同一数据库事务内完成精确释放和剩余资源转移。
+SET NAMES utf8mb4;
+
+CREATE TABLE IF NOT EXISTS wh_pallet_location_settlement_operation (
+  id BIGINT UNSIGNED NOT NULL COMMENT 'PDA资源结算幂等操作ID',
+  tenant_id BIGINT UNSIGNED NOT NULL COMMENT '仓储公共资源作用域，固定为0',
+  source_service VARCHAR(40) NOT NULL COMMENT '来源服务',
+  source_business_id BIGINT UNSIGNED NOT NULL COMMENT '主入库单ID',
+  target_business_id BIGINT UNSIGNED NOT NULL COMMENT '二级子入库单ID；全拣完成时为0，仅作审计快照',
+  idempotency_key VARCHAR(128) NOT NULL COMMENT 'PDA结算幂等键',
+  request_hash CHAR(64) NOT NULL COMMENT '规范化请求SHA-256摘要',
+  operation_status VARCHAR(20) NOT NULL DEFAULT 'PROCESSING' COMMENT 'PROCESSING处理中，COMPLETED已完成',
+  response_snapshot JSON NULL COMMENT '完成后的释放和转移组合结果快照，用于重复请求重放',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '创建时间',
+  completed_at DATETIME(3) NULL COMMENT '完成时间',
+  PRIMARY KEY (id),
+  UNIQUE KEY uk_pallet_location_settlement_idempotency
+    (tenant_id, source_service, source_business_id, idempotency_key),
+  KEY idx_pallet_location_settlement_source
+    (tenant_id, source_service, source_business_id, operation_status)
+) ENGINE=InnoDB COMMENT='PDA拣货资源原子结算的持久化幂等操作记录';
+
+-- 兼容已执行过旧脚本的测试库：目标子单不属于幂等键，同一来源单据和幂等键只能对应一条请求。
+ALTER TABLE wh_pallet_location_settlement_operation
+  DROP INDEX uk_pallet_location_settlement_idempotency,
+  ADD UNIQUE KEY uk_pallet_location_settlement_idempotency
+    (tenant_id, source_service, source_business_id, idempotency_key);
diff --git a/warehouse/src/main/resources/db/phase3-pallet-location-transfer-idempotency.sql b/warehouse/src/main/resources/db/phase3-pallet-location-transfer-idempotency.sql
new file mode 100644
index 000000000..1dcf759f6
--- /dev/null
+++ b/warehouse/src/main/resources/db/phase3-pallet-location-transfer-idempotency.sql
@@ -0,0 +1,20 @@
+-- 托盘库位转移的持久化幂等契约；可在二期托盘库位表建表后重复执行。
+SET NAMES utf8mb4;
+
+CREATE TABLE IF NOT EXISTS wh_pallet_location_transfer_operation (
+  id BIGINT UNSIGNED NOT NULL COMMENT '调拨幂等操作ID',
+  tenant_id BIGINT UNSIGNED NOT NULL COMMENT '仓储公共资源域，固定为0',
+  source_service VARCHAR(40) NOT NULL COMMENT '来源服务',
+  source_business_id BIGINT UNSIGNED NOT NULL COMMENT '来源入仓单ID',
+  target_business_id BIGINT UNSIGNED NOT NULL COMMENT '目标子入仓单ID',
+  idempotency_key VARCHAR(128) NOT NULL COMMENT '调用方幂等键',
+  request_hash CHAR(64) NOT NULL COMMENT '规范化请求SHA-256摘要',
+  operation_status VARCHAR(20) NOT NULL DEFAULT 'PROCESSING' COMMENT 'PROCESSING处理中、COMPLETED已完成',
+  response_snapshot JSON NULL COMMENT '完成后的调拨结果快照，用于重复请求重放',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '创建时间',
+  completed_at DATETIME(3) NULL COMMENT '完成时间',
+  PRIMARY KEY (id),
+  UNIQUE KEY uk_pallet_location_transfer_idempotency
+    (tenant_id, source_service, source_business_id, target_business_id, idempotency_key),
+  KEY idx_pallet_location_transfer_source (tenant_id, source_service, source_business_id, operation_status)
+) ENGINE=InnoDB COMMENT='托盘库位归属转移的持久化幂等操作记录';
diff --git a/warehouse/src/test/java/com/baiyue/warehouse/controller/InternalPalletLocationControllerTest.java b/warehouse/src/test/java/com/baiyue/warehouse/controller/InternalPalletLocationControllerTest.java
new file mode 100644
index 000000000..e95f09009
--- /dev/null
+++ b/warehouse/src/test/java/com/baiyue/warehouse/controller/InternalPalletLocationControllerTest.java
@@ -0,0 +1,78 @@
+package com.baiyue.warehouse.controller;
+
+import com.baiyue.common.core.api.ResultCode;
+import com.baiyue.common.core.exception.BizException;
+import com.baiyue.warehouse.dto.PalletAllocationDtos;
+import com.baiyue.warehouse.service.PalletLocationAllocationService;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.test.util.ReflectionTestUtils;
+
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyNoInteractions;
+import static org.mockito.Mockito.when;
+
+class InternalPalletLocationControllerTest {
+    private static final String INTERNAL_TOKEN = "test-internal-service-token";
+
+    private final PalletLocationAllocationService service = mock(PalletLocationAllocationService.class);
+    private final InternalPalletLocationController controller = new InternalPalletLocationController();
+
+    @BeforeEach
+    void setUp() {
+        ReflectionTestUtils.setField(controller, "service", service);
+        ReflectionTestUtils.setField(controller, "internalToken", INTERNAL_TOKEN);
+        controller.initializeToken();
+    }
+
+    @Test
+    void transfersOnlyForInternalCaller() {
+        PalletAllocationDtos.TransferRequest request = request();
+        List<PalletAllocationDtos.TransferResult> expected = List.of(new PalletAllocationDtos.TransferResult(
+            101L, "LR101", 201L, 1, 10001L, 20L, 30L, "TP-001", null,
+            40L, "A-01", null, 5, "OCCUPIED"));
+        when(service.transfer(request)).thenReturn(expected);
+
+        var response = controller.transfer(INTERNAL_TOKEN, request);
+
+        assertThat(response.data()).isEqualTo(expected);
+        verify(service).transfer(request);
+    }
+
+    @Test
+    void rejectsInvalidInternalTokenBeforeTransfer() {
+        assertThatThrownBy(() -> controller.transfer("invalid", request()))
+            .isInstanceOf(BizException.class)
+            .extracting(exception -> ((BizException) exception).getResultCode())
+            .isEqualTo(ResultCode.FORBIDDEN);
+        verifyNoInteractions(service);
+    }
+
+    @Test
+    void settlesPdaResourcesOnlyForInternalCaller() {
+        PalletAllocationDtos.SettlementRequest request = settlementRequest();
+        PalletAllocationDtos.SettlementResult expected = new PalletAllocationDtos.SettlementResult(List.of(), List.of());
+        when(service.settle(request)).thenReturn(expected);
+
+        var response = controller.settle(INTERNAL_TOKEN, request);
+
+        assertThat(response.data()).isEqualTo(expected);
+        verify(service).settle(request);
+    }
+
+    private static PalletAllocationDtos.TransferRequest request() {
+        return new PalletAllocationDtos.TransferRequest(10001L, "FIRSTLEG", 88L, 89L,
+            "RK-001-S1", "transfer-88-89", 9001L, List.of(new PalletAllocationDtos.TransferItem(40L, 5)));
+    }
+
+    private static PalletAllocationDtos.SettlementRequest settlementRequest() {
+        return new PalletAllocationDtos.SettlementRequest(0L, 20L, "firstleg-service", 88L, 89L,
+            20, 12, "RK-001-S1", "PDA-SETTLEMENT-88-1", 9001L, "PDA settlement", List.of(101L),
+            List.of(new PalletAllocationDtos.SettlementTransferItem(102L, 12)));
+    }
+}
diff --git a/warehouse/src/test/java/com/baiyue/warehouse/dto/PalletAllocationDtosValidationTest.java b/warehouse/src/test/java/com/baiyue/warehouse/dto/PalletAllocationDtosValidationTest.java
new file mode 100644
index 000000000..8f4edcc50
--- /dev/null
+++ b/warehouse/src/test/java/com/baiyue/warehouse/dto/PalletAllocationDtosValidationTest.java
@@ -0,0 +1,29 @@
+package com.baiyue.warehouse.dto;
+
+import jakarta.validation.Validation;
+import jakarta.validation.Validator;
+import org.junit.jupiter.api.Test;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class PalletAllocationDtosValidationTest {
+    private final Validator validator = Validation.buildDefaultValidatorFactory().getValidator();
+
+    @Test
+    void acceptsPublicResourceScope() {
+        LocalDateTime expiresAt = LocalDateTime.now().plusMinutes(30);
+
+        assertThat(validator.validate(new PalletAllocationDtos.ReserveRequest(0L, 20L, "FIRSTLEG", 88L,
+            "RK-001", "measure-88", 9L, BigDecimal.ONE, BigDecimal.ONE, "STANDARD", expiresAt, true))).isEmpty();
+        assertThat(validator.validate(new PalletAllocationDtos.ConfirmRequest(0L, 20L, "FIRSTLEG", 88L,
+            9L, BigDecimal.ONE, BigDecimal.ONE))).isEmpty();
+        assertThat(validator.validate(new PalletAllocationDtos.ReleaseRequest(0L, "FIRSTLEG", 88L, 9L,
+            "入库补偿"))).isEmpty();
+        assertThat(validator.validate(new PalletAllocationDtos.SelectiveReleaseRequest(0L, "FIRSTLEG", 88L,
+            "pda-release-88-1", 9L, "PDA 部分拣货", List.of(40L)))).isEmpty();
+    }
+}
diff --git a/warehouse/src/test/java/com/baiyue/warehouse/repository/PalletLocationReleaseIdempotencySqlContractTest.java b/warehouse/src/test/java/com/baiyue/warehouse/repository/PalletLocationReleaseIdempotencySqlContractTest.java
new file mode 100644
index 000000000..26110ab4d
--- /dev/null
+++ b/warehouse/src/test/java/com/baiyue/warehouse/repository/PalletLocationReleaseIdempotencySqlContractTest.java
@@ -0,0 +1,48 @@
+package com.baiyue.warehouse.repository;
+
+import org.junit.jupiter.api.Test;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class PalletLocationReleaseIdempotencySqlContractTest {
+    @Test
+    void containsPersistentSelectedReleaseIdempotencySchema() throws IOException {
+        String moduleSql = Files.readString(Path.of("src", "main", "resources", "db",
+            "phase3-pallet-location-release-idempotency.sql"));
+        String unifiedSql = Files.readString(Path.of("..", "deploy", "sql",
+            "头程数据库统一增量-MySQL8.sql"));
+
+        for (String sql : new String[] {moduleSql, unifiedSql}) {
+            assertThat(sql)
+                .contains("CREATE TABLE IF NOT EXISTS wh_pallet_location_release_operation")
+                .contains("idempotency_key VARCHAR(128) NOT NULL")
+                .contains("request_hash CHAR(64) NOT NULL")
+                .contains("response_snapshot JSON NULL")
+                .contains("uk_pallet_location_release_idempotency")
+                .contains("tenant_id, source_service, business_id, idempotency_key");
+        }
+    }
+
+    @Test
+    void containsAtomicPdaSettlementSchema() throws IOException {
+        String moduleSql = Files.readString(Path.of("src", "main", "resources", "db",
+            "phase3-pallet-location-settlement-idempotency.sql"));
+        String unifiedSql = Files.readString(Path.of("..", "deploy", "sql",
+            "头程数据库统一增量-MySQL8.sql"));
+
+        for (String sql : new String[] {moduleSql, unifiedSql}) {
+            assertThat(sql)
+                .contains("CREATE TABLE IF NOT EXISTS wh_pallet_location_settlement_operation")
+                .contains("source_business_id BIGINT UNSIGNED NOT NULL")
+                .contains("target_business_id BIGINT UNSIGNED NOT NULL")
+                .contains("response_snapshot JSON NULL")
+                .contains("uk_pallet_location_settlement_idempotency")
+                .contains("tenant_id, source_service, source_business_id, idempotency_key")
+                .contains("DROP INDEX uk_pallet_location_settlement_idempotency");
+        }
+    }
+}
diff --git a/warehouse/src/test/java/com/baiyue/warehouse/service/LocationResourceServiceTest.java b/warehouse/src/test/java/com/baiyue/warehouse/service/LocationResourceServiceTest.java
index 3ddf7690a..dd2a17d6c 100644
--- a/warehouse/src/test/java/com/baiyue/warehouse/service/LocationResourceServiceTest.java
+++ b/warehouse/src/test/java/com/baiyue/warehouse/service/LocationResourceServiceTest.java
@@ -146,12 +146,17 @@ class LocationResourceServiceTest {
             occupancy(201L, 101L, 9L, "A1", 501L),
             occupancy(202L, 102L, 10L, "A2", 502L),
             occupancy(203L, 103L, 11L, "A3", 503L));
-        when(repository.lockOccupiedByBusiness(10001L, "FIRSTLEG", 301L)).thenReturn(active);
-        when(repository.findOwned(10001L, 88L, 10L)).thenReturn(occupiedLocation(10L, "A2"));
+        active.forEach(item -> {
+            item.setTenantId(0L);
+            item.setSourceService("firstleg-service");
+            item.setBusinessId(901L);
+        });
+        when(repository.lockOccupiedByBusiness(0L, "firstleg-service", 901L)).thenReturn(active);
+        when(repository.findOwned(0L, 88L, 10L)).thenReturn(occupiedLocation(10L, "A2"));
         when(repository.releaseOccupancy(active.get(1), "PDA partial pick")).thenReturn(1);
-        when(repository.changeStatus(10001L, 88L, 10L, "OCCUPIED", "AVAILABLE", 0, 7L)).thenReturn(1);
+        when(repository.changeStatus(0L, 88L, 10L, "OCCUPIED", "AVAILABLE", 0, 7L)).thenReturn(1);
 
-        var result = service.releaseSelected(new SelectiveReleaseCommand(10001L, "FIRSTLEG", 301L, 7L,
+        var result = service.releaseSelected(new SelectiveReleaseCommand(0L, "firstleg-service", 901L, 7L,
             "PDA partial pick", 10, List.of(10L), null));
 
         assertThat(result).singleElement().satisfies(item -> {
@@ -163,6 +168,56 @@ class LocationResourceServiceTest {
         verify(repository, never()).releaseOccupancy(active.get(2), "PDA partial pick");
     }
 
+    @Test
+    void shouldReleaseSelectedLocationsWithPersistedAllocatedPackageCount() {
+        LocationOccupancyEntity first = occupancy(201L, 101L, 9L, "A1", 501L);
+        first.setAllocatedPackageCount(3);
+        LocationOccupancyEntity second = occupancy(202L, 102L, 10L, "A2", 502L);
+        second.setAllocatedPackageCount(7);
+        when(repository.lockOccupiedByBusiness(10001L, "FIRSTLEG", 301L)).thenReturn(List.of(first, second));
+        when(repository.findOwned(10001L, 88L, 10L)).thenReturn(occupiedLocation(10L, "A2"));
+        when(repository.releaseOccupancy(second, "PDA full pick")).thenReturn(1);
+        when(repository.changeStatus(10001L, 88L, 10L, "OCCUPIED", "AVAILABLE", 0, 7L)).thenReturn(1);
+
+        var result = service.releaseSelectedExactly(new com.baiyue.warehouse.dto.LocationDtos.ExactSelectiveReleaseCommand(
+            10001L, "FIRSTLEG", 301L, 7L, "PDA full pick", List.of(10L)));
+
+        assertThat(result).singleElement().satisfies(item -> {
+            assertThat(item.locationId()).isEqualTo(10L);
+            assertThat(item.allocatedPackageCount()).isEqualTo(7);
+        });
+        verify(repository, never()).releaseOccupancy(first, "PDA full pick");
+    }
+
+    @Test
+    void shouldReleasePublicResourcesInAllocationOrderWhenLocationsAreNotSpecified() {
+        LocationOccupancyEntity allocationThree = occupancy(203L, 103L, 11L, "A3", 503L);
+        LocationOccupancyEntity allocationOne = occupancy(201L, 101L, 9L, "A1", 501L);
+        LocationOccupancyEntity allocationTwo = occupancy(202L, 102L, 10L, "A2", 502L);
+        List<LocationOccupancyEntity> active = List.of(allocationThree, allocationOne, allocationTwo);
+        active.forEach(item -> {
+            item.setTenantId(0L);
+            item.setSourceService("firstleg-service");
+            item.setBusinessId(901L);
+        });
+        when(repository.lockOccupiedByBusiness(0L, "firstleg-service", 901L)).thenReturn(active);
+        for (LocationOccupancyEntity item : List.of(allocationOne, allocationTwo)) {
+            when(repository.findOwned(0L, 88L, item.getLocationId()))
+                .thenReturn(occupiedLocation(item.getLocationId(), item.getLocationCode()));
+            when(repository.releaseOccupancy(item, "PDA default pick")).thenReturn(1);
+            when(repository.changeStatus(0L, 88L, item.getLocationId(), "OCCUPIED", "AVAILABLE", 0, 7L))
+                .thenReturn(1);
+        }
+
+        var result = service.releaseSelected(new SelectiveReleaseCommand(0L, "firstleg-service", 901L, 7L,
+            "PDA default pick", 8, List.of(), 2));
+
+        assertThat(result).extracting(item -> item.allocationNo()).containsExactly(1, 2);
+        assertThat(result).extracting(item -> item.locationCode()).containsExactly("A1", "A2");
+        assertThat(result).extracting(item -> item.releasedPackageCount()).containsExactly(3, 3);
+        verify(repository, never()).releaseOccupancy(allocationThree, "PDA default pick");
+    }
+
     @Test
     void shouldReleaseFirstNAllocationsWhenLocationsAreNotSpecified() {
         List<LocationOccupancyEntity> active = List.of(
@@ -213,6 +268,52 @@ class LocationResourceServiceTest {
             any(String.class), any(String.class), anyInt(), anyLong());
     }
 
+    @Test
+    void shouldTransferConfirmedOccupiedResourcesToChildInbound() {
+        LocationOccupancyEntity occupancy = occupancy(201L, 101L, 9L, "A1", 501L);
+        occupancy.setAllocatedPackageCount(8);
+        occupancy.setAllocatedVolumeCbm(new BigDecimal("1.200000"));
+        LocationReservationEntity reservation = reservation("CONFIRMED");
+        reservation.setReservationNo("LR101");
+        when(repository.lockOccupiedByBusiness(10001L, "FIRSTLEG", 301L)).thenReturn(List.of(occupancy));
+        when(repository.lockReservation(10001L, 101L)).thenReturn(reservation);
+        when(repository.transferConfirmedReservation(reservation, "FIRSTLEG", 301L, 302L, "RK001-S1"))
+            .thenReturn(1);
+        when(repository.transferOccupied(occupancy, "FIRSTLEG", 301L, 302L, "RK001-S1", 5))
+            .thenReturn(1);
+
+        var result = service.transferToChild(new com.baiyue.warehouse.dto.LocationDtos.TransferCommand(
+            10001L, "FIRSTLEG", 301L, 302L, "RK001-S1", 7L,
+            List.of(new com.baiyue.warehouse.dto.LocationDtos.TransferItem(9L, 5))));
+
+        assertThat(result).singleElement().satisfies(item -> {
+            assertThat(item.reservationNo()).isEqualTo("LR101");
+            assertThat(item.occupancyId()).isEqualTo(201L);
+            assertThat(item.remainingPackageCount()).isEqualTo(5);
+            assertThat(item.state()).isEqualTo("OCCUPIED");
+        });
+        verify(repository).transferConfirmedReservation(reservation, "FIRSTLEG", 301L, 302L, "RK001-S1");
+        verify(repository).transferOccupied(occupancy, "FIRSTLEG", 301L, 302L, "RK001-S1", 5);
+        verify(repository, never()).releaseOccupancy(any(), any(String.class));
+        verify(repository, never()).releaseReservation(any(), any(String.class));
+    }
+
+    @Test
+    void shouldRejectTransferWhenRemainingPackagesExceedAllocation() {
+        LocationOccupancyEntity occupancy = occupancy(201L, 101L, 9L, "A1", 501L);
+        occupancy.setAllocatedPackageCount(4);
+        LocationReservationEntity reservation = reservation("CONFIRMED");
+        when(repository.lockOccupiedByBusiness(10001L, "FIRSTLEG", 301L)).thenReturn(List.of(occupancy));
+        when(repository.lockReservation(10001L, 101L)).thenReturn(reservation);
+
+        assertThatThrownBy(() -> service.transferToChild(new com.baiyue.warehouse.dto.LocationDtos.TransferCommand(
+            10001L, "FIRSTLEG", 301L, 302L, "RK001-S1", 7L,
+            List.of(new com.baiyue.warehouse.dto.LocationDtos.TransferItem(9L, 5)))))
+            .isInstanceOf(com.baiyue.common.core.exception.BizException.class);
+        verify(repository, never()).transferConfirmedReservation(any(), any(String.class), anyLong(), anyLong(), any());
+        verify(repository, never()).transferOccupied(any(), any(String.class), anyLong(), anyLong(), any(), anyInt());
+    }
+
     private static ReserveCommand reserveCommand() {
         return new ReserveCommand(10001L, 88L, "FIRSTLEG", 301L, "RK001", 7L,
             LocalDateTime.now().plusMinutes(30), List.of(
diff --git a/warehouse/src/test/java/com/baiyue/warehouse/service/PalletLocationAllocationServiceTest.java b/warehouse/src/test/java/com/baiyue/warehouse/service/PalletLocationAllocationServiceTest.java
index 88503f0cb..7cb7530fa 100644
--- a/warehouse/src/test/java/com/baiyue/warehouse/service/PalletLocationAllocationServiceTest.java
+++ b/warehouse/src/test/java/com/baiyue/warehouse/service/PalletLocationAllocationServiceTest.java
@@ -4,7 +4,14 @@ import com.baiyue.common.core.exception.BizException;
 import com.baiyue.warehouse.dto.LocationDtos;
 import com.baiyue.warehouse.dto.PalletAllocationDtos;
 import com.baiyue.warehouse.entity.PalletEntity;
+import com.baiyue.warehouse.entity.PalletLocationTransferOperationEntity;
+import com.baiyue.warehouse.entity.PalletLocationReleaseOperationEntity;
+import com.baiyue.warehouse.entity.PalletLocationSettlementOperationEntity;
 import com.baiyue.warehouse.repository.PalletRepository;
+import com.baiyue.warehouse.repository.PalletLocationTransferOperationRepository;
+import com.baiyue.warehouse.repository.PalletLocationReleaseOperationRepository;
+import com.baiyue.warehouse.repository.PalletLocationSettlementOperationRepository;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import org.junit.jupiter.api.Test;
 import jakarta.annotation.Resource;
 import org.springframework.boot.test.mock.mockito.MockBean;
@@ -19,20 +26,28 @@ import java.util.List;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyLong;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyNoInteractions;
 import static org.mockito.Mockito.when;
 
 @SpringJUnitConfig(classes = {PalletLocationAllocationService.class, PalletLocationAllocationServiceTest.TestConfig.class})
 class PalletLocationAllocationServiceTest {
     @MockBean private PalletRepository pallets;
     @MockBean private LocationResourceService locations;
+    @MockBean private PalletLocationTransferOperationRepository transferOperations;
+    @MockBean private PalletLocationReleaseOperationRepository releaseOperations;
+    @MockBean private PalletLocationSettlementOperationRepository settlementOperations;
     @Resource private PalletLocationAllocationService service;
 
     @Configuration(proxyBeanMethods = false)
     static class TestConfig {
         @Bean PalletVolumeSplitter splitter() { return new PalletVolumeSplitter(); }
+        @Bean ObjectMapper objectMapper() { return new ObjectMapper(); }
     }
 
     @Test
@@ -106,21 +121,304 @@ class PalletLocationAllocationServiceTest {
 
     @Test
     void shouldReleaseOnlyPalletsReturnedBySelectedLocationRelease() {
-        var resource = new LocationDtos.SelectiveReleaseResult(
+        var resource = new LocationDtos.ExactSelectiveReleaseResult(
             102L, 202L, 2, 20L, 30L, 40L, "A-02", 4);
-        when(locations.releaseSelected(any())).thenReturn(List.of(resource));
+        PalletLocationReleaseOperationEntity operation = new PalletLocationReleaseOperationEntity();
+        operation.setId(701L);
+        operation.setOperationStatus("PROCESSING");
+        when(releaseOperations.createIfAbsent(anyLong(), anyString(), anyLong(), anyString(), anyString()))
+            .thenAnswer(invocation -> {
+                operation.setRequestHash(invocation.getArgument(4));
+                return true;
+            });
+        when(releaseOperations.lockByKey(anyLong(), anyString(), anyLong(), anyString())).thenReturn(operation);
+        when(locations.releaseSelectedExactly(any())).thenReturn(List.of(resource));
         when(pallets.transitionStatus(10001L, 20L, 30L, List.of("OCCUPIED"), "AVAILABLE"))
             .thenReturn(1);
 
         var result = service.releaseSelected(new PalletAllocationDtos.SelectiveReleaseRequest(
-            10001L, "FIRSTLEG", 88L, 9001L, "PDA partial pick", 10, List.of(40L), null));
+            10001L, "FIRSTLEG", 88L, "pda-release-88-202", 9001L, "PDA partial pick", List.of(40L)));
 
         assertThat(result).singleElement().satisfies(item -> {
             assertThat(item.allocationNo()).isEqualTo(2);
             assertThat(item.locationId()).isEqualTo(40L);
-            assertThat(item.releasedPackageCount()).isEqualTo(4);
+            assertThat(item.allocatedPackageCount()).isEqualTo(4);
         });
         verify(pallets).transitionStatus(10001L, 20L, 30L, List.of("OCCUPIED"), "AVAILABLE");
+        verify(releaseOperations).complete(org.mockito.ArgumentMatchers.eq(701L), anyString());
+    }
+
+    @Test
+    void shouldReplayCompletedSelectedReleaseForSameIdempotencyKey() throws Exception {
+        var expected = List.of(new PalletAllocationDtos.SelectiveReleaseResult(101L, 201L, 1,
+            30L, 40L, "A-01", 6));
+        PalletLocationReleaseOperationEntity operation = new PalletLocationReleaseOperationEntity();
+        operation.setOperationStatus("COMPLETED");
+        operation.setResponseSnapshot(new ObjectMapper().writeValueAsString(expected));
+        String[] requestHash = new String[1];
+        when(releaseOperations.createIfAbsent(anyLong(), anyString(), anyLong(), anyString(), anyString()))
+            .thenAnswer(invocation -> {
+                requestHash[0] = invocation.getArgument(4);
+                return false;
+            });
+        when(releaseOperations.lockByKey(anyLong(), anyString(), anyLong(), anyString()))
+            .thenAnswer(invocation -> {
+                operation.setRequestHash(requestHash[0]);
+                return operation;
+            });
+
+        assertThat(service.releaseSelected(selectiveReleaseRequest())).isEqualTo(expected);
+        verify(locations, never()).releaseSelectedExactly(any());
+        verify(releaseOperations, never()).complete(anyLong(), anyString());
+    }
+
+    @Test
+    void shouldRejectSelectedReleaseWhenIdempotencyKeyHasDifferentRequest() {
+        PalletLocationReleaseOperationEntity operation = new PalletLocationReleaseOperationEntity();
+        operation.setOperationStatus("COMPLETED");
+        operation.setRequestHash("different-request-hash");
+        when(releaseOperations.createIfAbsent(anyLong(), anyString(), anyLong(), anyString(), anyString()))
+            .thenReturn(false);
+        when(releaseOperations.lockByKey(anyLong(), anyString(), anyLong(), anyString())).thenReturn(operation);
+
+        assertThatThrownBy(() -> service.releaseSelected(selectiveReleaseRequest())).isInstanceOf(BizException.class);
+        verify(locations, never()).releaseSelectedExactly(any());
+    }
+
+    @Test
+    void shouldSettlePdaResourcesAtomicallyAndPersistCombinedSnapshot() {
+        PalletLocationSettlementOperationEntity operation = new PalletLocationSettlementOperationEntity();
+        operation.setId(801L);
+        operation.setOperationStatus("PROCESSING");
+        when(locations.lockOccupiedResources(0L, "firstleg-service", 88L)).thenReturn(sourceResources());
+        when(settlementOperations.createIfAbsent(anyLong(), anyLong(), anyString(), anyString()))
+            .thenAnswer(invocation -> {
+                operation.setRequestHash(invocation.getArgument(3));
+                return true;
+            });
+        when(settlementOperations.lockByKey(anyLong(), anyString()))
+            .thenReturn(operation);
+        when(locations.releaseSelectedReservations(any())).thenReturn(List.of(new LocationDtos.ExactSelectiveReleaseResult(
+            101L, 201L, 1, 20L, 30L, 40L, "A-01", 8)));
+        when(pallets.transitionStatus(0L, 20L, 30L, List.of("OCCUPIED"), "AVAILABLE")).thenReturn(1);
+        when(locations.transferToChildByReservation(any())).thenReturn(List.of(new LocationDtos.TransferResult(
+            102L, "LR102", 202L, 2, 20L, 31L, "TP-002", 41L, "A-02",
+            new BigDecimal("1.200000"), 12, "OCCUPIED")));
+        PalletEntity pallet = pallet(31L, "TP-002");
+        pallet.setStatus("OCCUPIED");
+        pallet.setCapacityCbm(new BigDecimal("1.500000"));
+        when(pallets.findOwned(0L, 20L, 31L)).thenReturn(pallet);
+
+        var result = service.settle(settlementRequest());
+
+        assertThat(result.released()).singleElement().satisfies(item ->
+            assertThat(item.allocatedPackageCount()).isEqualTo(8));
+        assertThat(result.transferred()).singleElement().satisfies(item ->
+            assertThat(item.remainingPackageCount()).isEqualTo(12));
+        verify(settlementOperations).complete(org.mockito.ArgumentMatchers.eq(801L), anyString());
+        org.mockito.ArgumentCaptor<LocationDtos.ReservationReleaseCommand> releaseCommand =
+            org.mockito.ArgumentCaptor.forClass(LocationDtos.ReservationReleaseCommand.class);
+        verify(locations).releaseSelectedReservations(releaseCommand.capture());
+        assertThat(releaseCommand.getValue().tenantId()).isZero();
+        assertThat(releaseCommand.getValue().sourceService()).isEqualTo("firstleg-service");
+        assertThat(releaseCommand.getValue().reservationIds()).containsExactly(101L);
+        org.mockito.ArgumentCaptor<LocationDtos.ReservationTransferCommand> transferCommand =
+            org.mockito.ArgumentCaptor.forClass(LocationDtos.ReservationTransferCommand.class);
+        verify(locations).transferToChildByReservation(transferCommand.capture());
+        assertThat(transferCommand.getValue().items()).extracting(LocationDtos.ReservationTransferItem::reservationId)
+            .containsExactly(102L);
+    }
+
+    @Test
+    void shouldReplayCompletedPdaSettlementForSameIdempotencyKey() throws Exception {
+        var expected = new PalletAllocationDtos.SettlementResult(
+            List.of(new PalletAllocationDtos.SelectiveReleaseResult(101L, 201L, 1, 30L, 40L, "A-01", 8)),
+            List.of(new PalletAllocationDtos.TransferResult(102L, "LR102", 202L, 2,
+                0L, 20L, 31L, "TP-002", new BigDecimal("1.5"), 41L, "A-02",
+                new BigDecimal("1.2"), 12, "OCCUPIED")));
+        PalletLocationSettlementOperationEntity operation = new PalletLocationSettlementOperationEntity();
+        operation.setOperationStatus("COMPLETED");
+        operation.setResponseSnapshot(new ObjectMapper().writeValueAsString(expected));
+        String[] requestHash = new String[1];
+        when(locations.lockOccupiedResources(0L, "firstleg-service", 88L)).thenReturn(sourceResources());
+        when(settlementOperations.createIfAbsent(anyLong(), anyLong(), anyString(), anyString()))
+            .thenAnswer(invocation -> {
+                requestHash[0] = invocation.getArgument(3);
+                return false;
+            });
+        when(settlementOperations.lockByKey(anyLong(), anyString()))
+            .thenAnswer(invocation -> {
+                operation.setRequestHash(requestHash[0]);
+                return operation;
+            });
+
+        assertThat(service.settle(settlementRequest())).isEqualTo(expected);
+        verify(locations, never()).releaseSelectedReservations(any());
+        verify(locations, never()).transferToChildByReservation(any());
+    }
+
+    @Test
+    void shouldRejectPdaSettlementWhenIdempotencyKeyHasDifferentRequest() {
+        PalletLocationSettlementOperationEntity operation = new PalletLocationSettlementOperationEntity();
+        operation.setOperationStatus("COMPLETED");
+        operation.setRequestHash("different-request-hash");
+        when(locations.lockOccupiedResources(0L, "firstleg-service", 88L)).thenReturn(sourceResources());
+        when(settlementOperations.createIfAbsent(anyLong(), anyLong(), anyString(), anyString()))
+            .thenReturn(false);
+        when(settlementOperations.lockByKey(anyLong(), anyString()))
+            .thenReturn(operation);
+
+        assertThatThrownBy(() -> service.settle(settlementRequest())).isInstanceOf(BizException.class);
+        verify(locations, never()).releaseSelectedReservations(any());
+        verify(locations, never()).transferToChildByReservation(any());
+    }
+
+    @Test
+    void shouldRejectPdaSettlementFromNonFirstlegService() {
+        PalletAllocationDtos.SettlementRequest invalid = new PalletAllocationDtos.SettlementRequest(
+            0L, 20L, "other-service", 88L, 89L, 20, 12, "RK-001-S1",
+            "PDA-SETTLEMENT-88-1", 9001L, "PDA settlement", List.of(101L),
+            List.of(new PalletAllocationDtos.SettlementTransferItem(102L, 12)));
+
+        assertThatThrownBy(() -> service.settle(invalid)).isInstanceOf(BizException.class);
+        verifyNoInteractions(settlementOperations);
+        verify(locations, never()).lockOccupiedResources(anyLong(), anyString(), anyLong());
+    }
+
+    @Test
+    void shouldRejectPdaSettlementWhenPackageCountsDoNotBalance() {
+        PalletAllocationDtos.SettlementRequest invalid = new PalletAllocationDtos.SettlementRequest(
+            0L, 20L, "firstleg-service", 88L, 89L, 20, 11, "RK-001-S1",
+            "PDA-SETTLEMENT-88-1", 9001L, "PDA settlement", List.of(101L),
+            List.of(new PalletAllocationDtos.SettlementTransferItem(102L, 12)));
+        PalletLocationSettlementOperationEntity operation = new PalletLocationSettlementOperationEntity();
+        operation.setOperationStatus("PROCESSING");
+        when(locations.lockOccupiedResources(0L, "firstleg-service", 88L)).thenReturn(sourceResources());
+        when(settlementOperations.createIfAbsent(anyLong(), anyLong(), anyString(), anyString()))
+            .thenAnswer(invocation -> {
+                operation.setRequestHash(invocation.getArgument(3));
+                return true;
+            });
+        when(settlementOperations.lockByKey(88L, "PDA-SETTLEMENT-88-1")).thenReturn(operation);
+
+        assertThatThrownBy(() -> service.settle(invalid)).isInstanceOf(BizException.class);
+        verify(locations, never()).releaseSelectedReservations(any());
+        verify(locations, never()).transferToChildByReservation(any());
+    }
+
+    @Test
+    void shouldRejectChangedChildForSamePdaSettlementKey() {
+        PalletLocationSettlementOperationEntity operation = new PalletLocationSettlementOperationEntity();
+        operation.setOperationStatus("COMPLETED");
+        operation.setRequestHash("request-for-another-child");
+        PalletAllocationDtos.SettlementRequest changedChild = new PalletAllocationDtos.SettlementRequest(
+            0L, 20L, "firstleg-service", 88L, 90L, 20, 12, "RK-001-S2",
+            "PDA-SETTLEMENT-88-1", 9001L, "PDA settlement", List.of(101L),
+            List.of(new PalletAllocationDtos.SettlementTransferItem(102L, 12)));
+        when(locations.lockOccupiedResources(0L, "firstleg-service", 88L)).thenReturn(sourceResources());
+        when(settlementOperations.createIfAbsent(eq(88L), eq(90L), eq("PDA-SETTLEMENT-88-1"), anyString()))
+            .thenReturn(false);
+        when(settlementOperations.lockByKey(88L, "PDA-SETTLEMENT-88-1")).thenReturn(operation);
+
+        assertThatThrownBy(() -> service.settle(changedChild)).isInstanceOf(BizException.class);
+        verify(settlementOperations).lockByKey(88L, "PDA-SETTLEMENT-88-1");
+        verify(locations, never()).releaseSelectedReservations(any());
+        verify(locations, never()).transferToChildByReservation(any());
+    }
+
+    @Test
+    void shouldTransferOccupiedResourceWithoutReleasingPallet() {
+        PalletLocationTransferOperationEntity operation = new PalletLocationTransferOperationEntity();
+        operation.setId(501L);
+        operation.setOperationStatus("PROCESSING");
+        when(transferOperations.createIfAbsent(anyLong(), anyString(), anyLong(), anyLong(), anyString(), anyString()))
+            .thenAnswer(invocation -> {
+                operation.setRequestHash(invocation.getArgument(5));
+                return true;
+            });
+        when(transferOperations.lockByKey(anyLong(), anyString(), anyLong(), anyLong(), anyString()))
+            .thenReturn(operation);
+        when(locations.transferToChild(any())).thenReturn(List.of(new LocationDtos.TransferResult(
+            101L, "LR101", 201L, 1, 20L, 30L, "TP-001", 40L, "A-01",
+            new BigDecimal("1.200000"), 5, "OCCUPIED")));
+        PalletEntity pallet = pallet(30L, "TP-001");
+        pallet.setStatus("OCCUPIED");
+        pallet.setCapacityCbm(new BigDecimal("1.500000"));
+        when(pallets.findOwned(10001L, 20L, 30L)).thenReturn(pallet);
+
+        var result = service.transfer(new PalletAllocationDtos.TransferRequest(
+            10001L, "FIRSTLEG", 88L, 89L, "RK-001-S1", "transfer-88-89", 9001L,
+            List.of(new PalletAllocationDtos.TransferItem(40L, 5))));
+
+        assertThat(result).singleElement().satisfies(item -> {
+            assertThat(item.occupancyId()).isEqualTo(201L);
+            assertThat(item.palletCapacityCbm()).isEqualByComparingTo("1.500000");
+            assertThat(item.remainingPackageCount()).isEqualTo(5);
+            assertThat(item.state()).isEqualTo("OCCUPIED");
+        });
+        verify(pallets, never()).transitionStatus(10001L, 20L, 30L, List.of("OCCUPIED"), "AVAILABLE");
+        verify(transferOperations).complete(org.mockito.ArgumentMatchers.eq(501L), anyString());
+    }
+
+    @Test
+    void shouldReplayCompletedTransferForSameIdempotencyKey() throws Exception {
+        var expected = List.of(new PalletAllocationDtos.TransferResult(101L, "LR101", 201L, 1,
+            0L, 20L, 30L, "TP-001", new BigDecimal("1.5"), 40L, "A-01",
+            new BigDecimal("1.2"), 5, "OCCUPIED"));
+        PalletLocationTransferOperationEntity operation = new PalletLocationTransferOperationEntity();
+        operation.setOperationStatus("COMPLETED");
+        operation.setResponseSnapshot(new ObjectMapper().writeValueAsString(expected));
+        String[] requestHash = new String[1];
+        when(transferOperations.createIfAbsent(anyLong(), anyString(), anyLong(), anyLong(), anyString(), anyString()))
+            .thenAnswer(invocation -> {
+                requestHash[0] = invocation.getArgument(5);
+                return false;
+            });
+        when(transferOperations.lockByKey(anyLong(), anyString(), anyLong(), anyLong(), anyString()))
+            .thenAnswer(invocation -> {
+                operation.setRequestHash(requestHash[0]);
+                return operation;
+            });
+
+        assertThat(service.transfer(transferRequest())).isEqualTo(expected);
+        verify(locations, never()).transferToChild(any());
+        verify(transferOperations, never()).complete(anyLong(), anyString());
+    }
+
+    @Test
+    void shouldRejectSameIdempotencyKeyWithDifferentRequestHash() {
+        PalletLocationTransferOperationEntity operation = new PalletLocationTransferOperationEntity();
+        operation.setOperationStatus("COMPLETED");
+        operation.setRequestHash("different-request-hash");
+        when(transferOperations.createIfAbsent(anyLong(), anyString(), anyLong(), anyLong(), anyString(), anyString()))
+            .thenReturn(false);
+        when(transferOperations.lockByKey(anyLong(), anyString(), anyLong(), anyLong(), anyString()))
+            .thenReturn(operation);
+
+        assertThatThrownBy(() -> service.transfer(transferRequest())).isInstanceOf(BizException.class);
+        verify(locations, never()).transferToChild(any());
+    }
+
+    private static PalletAllocationDtos.TransferRequest transferRequest() {
+        return new PalletAllocationDtos.TransferRequest(10001L, "FIRSTLEG", 88L, 89L, "RK-001-S1",
+            "transfer-88-89", 9001L, List.of(new PalletAllocationDtos.TransferItem(40L, 5)));
+    }
+
+    private static PalletAllocationDtos.SelectiveReleaseRequest selectiveReleaseRequest() {
+        return new PalletAllocationDtos.SelectiveReleaseRequest(10001L, "FIRSTLEG", 88L,
+            "pda-release-88-201", 9001L, "PDA full pick", List.of(40L));
+    }
+
+    private static PalletAllocationDtos.SettlementRequest settlementRequest() {
+        return new PalletAllocationDtos.SettlementRequest(0L, 20L, "firstleg-service", 88L, 89L, 20, 12,
+            "RK-001-S1", "PDA-SETTLEMENT-88-1", 9001L, "PDA settlement", List.of(101L),
+            List.of(new PalletAllocationDtos.SettlementTransferItem(102L, 12)));
+    }
+
+    private static List<LocationDtos.OccupiedResource> sourceResources() {
+        return List.of(
+            new LocationDtos.OccupiedResource(101L, 201L, 1, 20L, 30L, 40L, "A-01", false, 8),
+            new LocationDtos.OccupiedResource(102L, 202L, 2, 20L, 31L, 41L, "A-02", false, 12));
     }
 
     private static PalletAllocationDtos.ReserveRequest reserve(long businessId) {