diff --git a/firstleg/src/main/java/com/baiyue/firstleg/controller/PlatformLoadingListController.java b/firstleg/src/main/java/com/baiyue/firstleg/controller/PlatformLoadingListController.java
index fe72ab844..89f643dfc 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/controller/PlatformLoadingListController.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/controller/PlatformLoadingListController.java
@@ -72,7 +72,7 @@ public class PlatformLoadingListController {
         return ApiResponse.success(service.lifecycle(planId, warehouseId));
     }
 
-    @Operation(summary = "修改装柜运输字段", description = "已推送且仍为 EDITING 的预装清单可补录或修改集装箱号与航次；LOADING 阶段按稳定柜次身份规则维护，不能清空已创建 PDA 任务的柜号。")
+    @Operation(summary = "修改装柜运输字段", description = "已推送且仍为 EDITING、PDA尚未领取或产生物理作业事实时，可首次补录或纠正集装箱号并维护航次；已有柜号的纠正必须提供原因和版本，柜号不能清空。")
     @PatchMapping("/loading-plans/{planId}/transport")
     @PreAuthorize("hasAuthority('platform:firstleg:preload:edit')")
     public ApiResponse<PreloadDetail> updateTransport(
@@ -86,7 +86,7 @@ public class PlatformLoadingListController {
             planId, warehouseId, user.userId(), user.username(), idempotencyKey, request));
     }
 
-    @Operation(summary = "确认整份预装计划", description = "按 loadingPlanId 原子确认全部关联入库预装票据；要求已推送、真实集装箱号已录入、关联订舱已放舱。成功后唯一创建待领取 PDA 任务，claim 后才进入 LOADING。")
+    @Operation(summary = "确认整份预装计划", description = "按 loadingPlanId 原子确认全部关联入库预装票据；要求已推送且关联订舱已放舱，真实集装箱号可在PDA确认装柜完成前补录。成功后唯一创建待领取 PDA 任务，claim 后才进入 LOADING。")
     @PostMapping("/loading-plans/{planId}/confirm")
     @PreAuthorize("hasAuthority('platform:firstleg:preload:edit')")
     public ApiResponse<PreloadConfirmationResponse> confirmPreload(
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/dto/LoadingListDtos.java b/firstleg/src/main/java/com/baiyue/firstleg/dto/LoadingListDtos.java
index 1ba217f2b..1e7ef50eb 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/dto/LoadingListDtos.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/dto/LoadingListDtos.java
@@ -51,7 +51,7 @@ public final class LoadingListDtos {
         @Size(max = 64) String containerNo,
         @Size(max = 64) String voyageNo,
         @NotNull @Min(0) Integer expectedVersion,
-        @NotBlank @Size(max = 500) String operationReason
+        @Size(max = 500) String operationReason
     ) {
     }
 
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/mapper/LoadingListQueryMapper.java b/firstleg/src/main/java/com/baiyue/firstleg/mapper/LoadingListQueryMapper.java
index abfdaa551..1bb4f1a1c 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/mapper/LoadingListQueryMapper.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/mapper/LoadingListQueryMapper.java
@@ -250,7 +250,6 @@ public interface LoadingListQueryMapper {
                b.updated_by = #{operatorId}, b.updated_by_name = #{operatorName},
                b.updated_at = CURRENT_TIMESTAMP(3), b.version = b.version + 1
          WHERE p.id = #{planId} AND p.plan_status='EDITING' AND p.preload_pushed_at IS NOT NULL
-           AND #{containerNo} IS NOT NULL
            AND NOT EXISTS (SELECT 1 FROM fl_loading_pick_task task
              JOIN fl_loading_pick_assignment assignment ON assignment.pick_task_id=task.id
              WHERE task.loading_plan_id=p.id)
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/repository/LoadingListRepository.java b/firstleg/src/main/java/com/baiyue/firstleg/repository/LoadingListRepository.java
index 6afdf2102..27f5333d6 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/repository/LoadingListRepository.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/repository/LoadingListRepository.java
@@ -151,13 +151,12 @@ public class LoadingListRepository {
         java.util.ArrayList<String> blockers = new java.util.ArrayList<>();
         if (!pushed) blockers.add("PRELOAD_NOT_PUSHED");
         if (!editing) blockers.add("LOADING_PLAN_NOT_EDITING");
-        if (!containerReady) blockers.add("CONTAINER_NO_MISSING");
         if (linkCount == 0) blockers.add("PRELOAD_LINK_MISSING");
         if (!oceanLinked) blockers.add("OCEAN_BOOKING_NOT_LINKED");
         else if (!released) blockers.add("OCEAN_BOOKING_NOT_RELEASED");
         if (taskCreated) blockers.add("PDA_TASK_ALREADY_CREATED");
         boolean allConfirmed = linkCount > 0 && confirmedCount == linkCount;
-        boolean prerequisitesReady = pushed && editing && containerReady && linkCount > 0 && released;
+        boolean prerequisitesReady = pushed && editing && linkCount > 0 && released;
         boolean canConfirm = prerequisitesReady && !taskCreated && !allConfirmed;
         if (allConfirmed) blockers.add("PRELOAD_ALREADY_CONFIRMED");
         String confirmationStatus = allConfirmed ? "CONFIRMED"
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/service/LoadingListService.java b/firstleg/src/main/java/com/baiyue/firstleg/service/LoadingListService.java
index 86970d5fe..bf2838354 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/service/LoadingListService.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/service/LoadingListService.java
@@ -423,7 +423,6 @@ public class LoadingListService {
         AggregateRow before = requirePlan(planId);
         requireWarehouse(before, warehouseId);
         String reason = trim(request.operationReason());
-        if (!StringUtils.hasText(reason)) throw badRequest("纠错原因不能为空");
         String operationId = operationId("TRANSPORT", planId, idempotencyKey);
         HistoryRow replay = repository.history(operationId);
         if (replay != null) {
@@ -434,15 +433,21 @@ public class LoadingListService {
             return repository.preloadDetail(before);
         }
 
-        requireTransportCorrectionMutable(before);
+        requireTransportMutable(before);
         String containerNo = targetContainerNo(before, request.containerNo());
         String voyageNo = nullableTrim(request.voyageNo());
+        boolean correctingContainerNo = StringUtils.hasText(before.getContainerNo())
+            && !java.util.Objects.equals(before.getContainerNo(), containerNo);
+        if (correctingContainerNo && !StringUtils.hasText(reason)) {
+            throw badRequest("纠正已有真实集装箱号时纠错原因不能为空");
+        }
         String requestHash = transportHash(planId, request.expectedVersion(), containerNo, voyageNo, reason);
         if (java.util.Objects.equals(before.getContainerNo(), containerNo)
             && java.util.Objects.equals(before.getVoyageNo(), voyageNo)) {
             return repository.preloadDetail(before);
         }
-        if (containerRepository.containerNoExists(containerNo, before.getContainerBookingId())) {
+        if (containerNo != null
+            && containerRepository.containerNoExists(containerNo, before.getContainerBookingId())) {
             throw conflict("集装箱号已存在");
         }
         try {
@@ -464,8 +469,9 @@ public class LoadingListService {
     }
 
     private static String targetContainerNo(AggregateRow before, String requested) {
-        return requested == null ? Iso6346ContainerNumber.require(before.getContainerNo())
-            : Iso6346ContainerNumber.require(requested);
+        if (requested != null) return Iso6346ContainerNumber.require(requested);
+        return StringUtils.hasText(before.getContainerNo())
+            ? Iso6346ContainerNumber.require(before.getContainerNo()) : null;
     }
 
     private static String transportHash(long planId, int version, String containerNo,
@@ -577,14 +583,11 @@ public class LoadingListService {
         }
     }
 
-    private void requireTransportCorrectionMutable(AggregateRow row) {
+    private void requireTransportMutable(AggregateRow row) {
         if (!"EDITING".equals(row.getPlanStatus())) {
             throw conflict("仅已推送且PDA尚未开始的预装计划可纠错真实集装箱号");
         }
         if (row.getPreloadPushedAt() == null) throw conflict("仅已推送的预装清单可维护运输字段");
-        if (!StringUtils.hasText(row.getContainerNo())) {
-            throw conflict("真实集装箱号只能在关联已放舱订舱时首次写入");
-        }
         if (repository.hasPdaWorkStarted(row.getPlanId())) {
             throw conflict("PDA任务已领取、已开始作业或已有物理作业事实，不能修改真实集装箱号");
         }
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 eb203f7dd..a285dabe2 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/service/LoadingPickService.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/service/LoadingPickService.java
@@ -23,6 +23,7 @@ import com.baiyue.firstleg.dto.LoadingPickDtos.InventoryResource;
 import com.baiyue.firstleg.dto.LoadingPickDtos.InboundInventory;
 import com.baiyue.firstleg.dto.LoadingPickDtos.InventorySnapshot;
 import com.baiyue.firstleg.dto.LoadingPickDtos.PendingTask;
+import com.baiyue.firstleg.domain.Iso6346ContainerNumber;
 import com.baiyue.firstleg.entity.LoadingPickAssignmentEntity;
 import com.baiyue.firstleg.entity.LoadingPickHistoryEntity;
 import com.baiyue.firstleg.entity.LoadingPickItemEntity;
@@ -113,11 +114,11 @@ public class LoadingPickService {
     @Value("${baiyue.security.internal-service-token:test-internal-service-token}")
     private String internalToken;
 
-    /** Opens the field task only after planning, transport identity and ocean release have converged. */
+    /** Opens the field task after planning and ocean release; the real container number may be filled later. */
     @Transactional
     public void beginIfReady(long containerBookingId, long operatorId, String operatorName) {
         var booking = smartLoadingRepository.booking(containerBookingId);
-        if (booking == null || !StringUtils.hasText(booking.getContainerNo())) return;
+        if (booking == null) return;
         var plan = smartLoadingRepository.planByBooking(containerBookingId);
         if (plan == null || plan.getPreloadPushedAt() == null || !"EDITING".equals(plan.getPlanStatus())) return;
         var links = loadingModelBridge.byLoadingPlan(plan.getId());
@@ -137,10 +138,6 @@ public class LoadingPickService {
             if (!Set.of("PENDING", "CONFIRMING").contains(link.preloadStatus())) {
                 throw conflict("预装清单已确认或当前状态不允许确认");
             }
-            var booking = smartLoadingRepository.booking(link.containerBookingId());
-            if (booking == null || !StringUtils.hasText(booking.getContainerNo())) {
-                throw conflict("确认预装前必须录入真实集装箱号");
-            }
             var allocation = oceanBookingRepository.allocationByContainer(link.containerBookingId());
             if (allocation == null) throw conflict("确认预装前必须关联真实订舱柜");
             var oceanBooking = oceanBookingRepository.find(allocation.getOceanBookingId());
@@ -462,6 +459,7 @@ public class LoadingPickService {
             requireSameCompletionCommand(replay, taskId, requestHash, operatorId);
             if ("FAILED".equals(replay.getCommandStatus())) {
                 LoadingPickTaskEntity failed = requiredTaskForUpdate(taskId);
+                requireCompletionContainerNumber(taskId);
                 if (!"COMPLETION_FAILED".equals(failed.getTaskStatus())
                     || !completionCommands.resume(replay.getId()) || repository.resumeCompletion(taskId) != 1) {
                     throw conflict("装柜完成命令状态已变化，请刷新后重试");
@@ -485,6 +483,7 @@ public class LoadingPickService {
         if (!request.expectedTaskVersion().equals(task.getVersion())) {
             throw conflict("PDA任务版本已变化，请刷新后复核");
         }
+        requireCompletionContainerNumber(taskId);
         if (!repository.allTaskItemsResolved(taskId)) {
             throw conflict("存在尚未处理的PDA拣货明细，不能确认装柜完成");
         }
@@ -514,6 +513,18 @@ public class LoadingPickService {
         return view(requiredTask(taskId), null);
     }
 
+    private void requireCompletionContainerNumber(long taskId) {
+        ContainerBookingEntity booking = repository.activeBookingByTask(taskId);
+        if (booking == null || !StringUtils.hasText(booking.getContainerNo())) {
+            throw conflict("PDA确认装柜完成前必须录入真实集装箱号");
+        }
+        try {
+            Iso6346ContainerNumber.require(booking.getContainerNo());
+        } catch (BizException exception) {
+            throw conflict("PDA确认装柜完成前必须录入符合ISO 6346的真实集装箱号");
+        }
+    }
+
     /** Called only by the completion worker, after its durable lease has committed. */
     public void processCompletion(LoadingCompletionCommandEntity command, String worker) {
         long taskId = command.getPickTaskId();
diff --git a/firstleg/src/main/resources/openapi/loading-lists-v1.yaml b/firstleg/src/main/resources/openapi/loading-lists-v1.yaml
index 92937c0b0..139bfb523 100644
--- a/firstleg/src/main/resources/openapi/loading-lists-v1.yaml
+++ b/firstleg/src/main/resources/openapi/loading-lists-v1.yaml
@@ -49,8 +49,8 @@ paths:
     patch:
       summary: 修改预装运输信息
       description: >-
-        唯一纠错入口。仅已推送且仍为 EDITING、真实柜号已由 ocean-booking-link 首次写入、PDA任务尚未领取且无任何物理作业事实时允许；
-        containerNo 为空表示保持当前值，非空时服务端移除格式空白、转大写并校验ISO 6346结构、设备类别和校验位。禁止清空，LOADING/COMPLETED全部拒绝。
+        仅已推送且仍为 EDITING、PDA任务尚未领取且无任何物理作业事实时允许。可首次补录真实集装箱号；已有柜号的纠正必须提供原因和当前版本；
+        containerNo 为 null 表示保持当前值，非空时服务端移除格式空白、转大写并校验ISO 6346结构、设备类别和校验位，空白字符串非法且禁止清空。
       x-permission: platform:firstleg:preload:edit
       parameters:
         - {$ref: '#/components/parameters/PlanId'}
@@ -66,7 +66,7 @@ paths:
   /api/platform/v1/first-leg/loading-plans/{planId}/confirm:
     post:
       summary: 原子确认整份预装计划
-      description: 以 loadingPlanId 为唯一范围，原子确认全部已分配入库预装票据。要求计划已 push 且仍为 EDITING、真实集装箱号已录入、稳定 bridge 完整、真实订舱已关联并为 RELEASED；任一票不满足均不写入。成功后唯一创建待领取 PDA task，claim 后才推进 LOADING。同一 Idempotency-Key 与相同请求精确重放原响应，不同 Key 重复确认返回业务冲突。
+      description: 以 loadingPlanId 为唯一范围，原子确认全部已分配入库预装票据。要求计划已 push 且仍为 EDITING、稳定 bridge 完整、真实订舱已关联并为 RELEASED；真实集装箱号可在PDA确认装柜完成前补录。任一票不满足均不写入。成功后唯一创建待领取 PDA task，claim 后才推进 LOADING。同一 Idempotency-Key 与相同请求精确重放原响应，不同 Key 重复确认返回业务冲突。
       x-permission: platform:firstleg:preload:edit
       parameters: [{$ref: '#/components/parameters/PlanId'}, {$ref: '#/components/parameters/IdempotencyKey'}]
       requestBody:
@@ -313,11 +313,11 @@ components:
         pdaTaskStatus: {type: string, nullable: true, description: PDA task 当前状态}
         confirmationStatus: {type: string, enum: [PENDING, PARTIALLY_CONFIRMED, CONFIRMED], description: 整份计划的预装确认状态}
         canConfirm: {type: boolean, description: 当前是否可调用计划级确认接口}
-        readyForPda: {type: boolean, description: PDA 创建前置条件是否全部满足；task 已创建后仍为 true}
+        readyForPda: {type: boolean, description: PDA 创建前置条件是否全部满足；不依赖真实集装箱号，task 已创建后仍为 true}
         blockingReasons:
           type: array
           description: 阻止计划确认的稳定原因码
-          items: {type: string, enum: [PRELOAD_NOT_PUSHED, LOADING_PLAN_NOT_EDITING, CONTAINER_NO_MISSING, PRELOAD_LINK_MISSING, OCEAN_BOOKING_NOT_LINKED, OCEAN_BOOKING_NOT_RELEASED, PDA_TASK_ALREADY_CREATED, PRELOAD_ALREADY_CONFIRMED]}
+          items: {type: string, enum: [PRELOAD_NOT_PUSHED, LOADING_PLAN_NOT_EDITING, PRELOAD_LINK_MISSING, OCEAN_BOOKING_NOT_LINKED, OCEAN_BOOKING_NOT_RELEASED, PDA_TASK_ALREADY_CREATED, PRELOAD_ALREADY_CONFIRMED]}
     ConfirmPreloadRequest:
       type: object
       required: [expectedVersion, operationReason]
@@ -428,4 +428,4 @@ components:
         containerNo: {type: string, maxLength: 64, nullable: true, description: 新真实集装箱号；null表示保持当前值，空白字符串非法，禁止清空}
         voyageNo: {type: string, maxLength: 64, nullable: true, description: 航次}
         expectedVersion: {type: integer, format: int32, minimum: 0, description: 当前乐观锁版本}
-        operationReason: {type: string, minLength: 1, maxLength: 500, description: 必填纠错原因}
+        operationReason: {type: string, minLength: 1, maxLength: 500, nullable: true, description: 纠正已有真实集装箱号时必填；首次补录或保持当前柜号时可省略}
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/controller/LoadingListControllerContractTest.java b/firstleg/src/test/java/com/baiyue/firstleg/controller/LoadingListControllerContractTest.java
index 3260d4bc5..c0461e7f5 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/controller/LoadingListControllerContractTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/controller/LoadingListControllerContractTest.java
@@ -100,10 +100,10 @@ class LoadingListControllerContractTest {
     }
 
     @Test
-    void transportCorrectionRequiresReasonAndKeepsNullContainerAsUnchanged() {
+    void transportCorrectionReasonIsRuntimeConditionalAndNullContainerKeepsCurrentValue() {
         assertThat(component(TransportUpdateRequest.class, "operationReason").getAccessor()
             .getAnnotation(NotBlank.class))
-            .isNotNull();
+            .isNull();
         assertThat(component(TransportUpdateRequest.class, "containerNo").getAccessor()
             .getAnnotation(NotBlank.class))
             .isNull();
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/repository/LoadingListQueryMapperContractTest.java b/firstleg/src/test/java/com/baiyue/firstleg/repository/LoadingListQueryMapperContractTest.java
index d8a657a27..ba1f02508 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/repository/LoadingListQueryMapperContractTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/repository/LoadingListQueryMapperContractTest.java
@@ -94,7 +94,7 @@ class LoadingListQueryMapperContractTest {
             .contains("SET b.container_no = #{containerNo}, b.voyage_no = #{voyageNo}")
             .contains("p.plan_status='EDITING'")
             .contains("preload_pushed_at IS NOT NULL")
-            .contains("#{containerNo} IS NOT NULL")
+            .doesNotContain("#{containerNo} IS NOT NULL")
             .contains("fl_loading_pick_task", "fl_loading_pick_assignment")
             .doesNotContain("DELETE")
             .doesNotContain("fl_loading_plan_item");
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/repository/LoadingListRepositoryTest.java b/firstleg/src/test/java/com/baiyue/firstleg/repository/LoadingListRepositoryTest.java
index c2d7bc9db..aa7a047c6 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/repository/LoadingListRepositoryTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/repository/LoadingListRepositoryTest.java
@@ -72,4 +72,30 @@ class LoadingListRepositoryTest {
         assertThat(confirmed.planId()).isEqualTo(41L);
         assertThat(confirmed.containerBookingId()).isEqualTo(61L);
     }
+
+    @Test
+    void missingContainerNumberDoesNotBlockPreloadConfirmationOrPdaReadiness() {
+        AggregateRow row = new AggregateRow();
+        row.setPlanId(41L);
+        row.setContainerBookingId(61L);
+        row.setPlanNo("LP-41");
+        row.setPlanStatus("EDITING");
+        row.setVersion(1);
+        row.setPreloadPushedAt(java.time.LocalDateTime.now());
+        row.setPreloadLinkCount(2L);
+        row.setConfirmedPreloadCount(0L);
+        row.setOceanBookingId(81L);
+        row.setOceanBookingStatus("RELEASED");
+        when(mapper.selectItems(41L)).thenReturn(List.of());
+        when(mapper.selectHistories(41L)).thenReturn(List.of());
+
+        var pending = repository.preloadDetail(row).summary().readiness();
+        assertThat(pending.containerNoReady()).isFalse();
+        assertThat(pending.canConfirm()).isTrue();
+        assertThat(pending.blockingReasons()).doesNotContain("CONTAINER_NO_MISSING");
+
+        row.setConfirmedPreloadCount(2L);
+        var confirmed = repository.preloadDetail(row).summary().readiness();
+        assertThat(confirmed.readyForPda()).isTrue();
+    }
 }
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/service/LoadingListServiceTest.java b/firstleg/src/test/java/com/baiyue/firstleg/service/LoadingListServiceTest.java
index db2e06853..31bf5cfcb 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/service/LoadingListServiceTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/service/LoadingListServiceTest.java
@@ -208,20 +208,43 @@ class LoadingListServiceTest {
     }
 
     @Test
-    void loadingPlanAndMissingInitialOceanBookingNumberBothRejectCorrection() {
+    void loadingPlanRejectsTransportUpdateButPushedEditingPlanAllowsFirstContainerFill() {
         AggregateRow loading = row("LOADING", 3);
         loading.setPreloadPushedAt(java.time.LocalDateTime.now());
         loading.setContainerNo("MSCU6639870");
         AggregateRow missing = row("EDITING", 3);
         missing.setPreloadPushedAt(java.time.LocalDateTime.now());
-        when(repository.aggregate(10L)).thenReturn(loading, missing);
+        AggregateRow afterFill = row("EDITING", 4);
+        afterFill.setPreloadPushedAt(missing.getPreloadPushedAt());
+        afterFill.setContainerNo("CSQU3054383");
+        when(repository.aggregate(10L)).thenReturn(loading, missing, afterFill);
+        when(repository.updateTransport(10L, 3, "CSQU3054383", null, 9L, "operator"))
+            .thenReturn(1);
+        when(repository.preloadDetail(afterFill)).thenReturn(
+            new com.baiyue.firstleg.dto.LoadingListDtos.PreloadDetail(null, List.of(), List.of()));
 
         assertThatThrownBy(() -> service.updateTransport(10L, 100L, 9L, "operator", "loading-key",
             new TransportUpdateRequest("CSQU3054383", null, 3, "作业后纠错")))
             .isInstanceOf(BizException.class).hasMessageContaining("PDA尚未开始");
-        assertThatThrownBy(() -> service.updateTransport(10L, 100L, 9L, "operator", "missing-key",
-            new TransportUpdateRequest("CSQU3054383", null, 3, "首次补录")))
-            .isInstanceOf(BizException.class).hasMessageContaining("首次写入");
+        service.updateTransport(10L, 100L, 9L, "operator", "missing-key",
+            new TransportUpdateRequest("CSQU3054383", null, 3, null));
+
+        verify(repository).updateTransport(10L, 3, "CSQU3054383", null, 9L, "operator");
+        verify(loadingPickService).beginIfReady(30L, 9L, "operator");
+    }
+
+    @Test
+    void correctingExistingContainerNumberStillRequiresReason() {
+        AggregateRow before = row("EDITING", 3);
+        before.setPreloadPushedAt(java.time.LocalDateTime.now());
+        before.setContainerNo("MSCU6639870");
+        when(repository.aggregate(10L)).thenReturn(before);
+
+        assertThatThrownBy(() -> service.updateTransport(10L, 100L, 9L, "operator", "reason-key",
+            new TransportUpdateRequest("CSQU3054383", null, 3, null)))
+            .isInstanceOf(BizException.class).hasMessageContaining("纠错原因");
+
+        verify(repository, never()).updateTransport(anyLong(), anyInt(), any(), any(), anyLong(), any());
     }
 
     @Test
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 86557fd2e..38c953f01 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/service/LoadingPickServiceTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/service/LoadingPickServiceTest.java
@@ -113,7 +113,7 @@ class LoadingPickServiceTest {
         }).when(completionTransaction).executeWithoutResult(any());
         ContainerBookingEntity booking = new ContainerBookingEntity();
         booking.setId(99L);
-        booking.setContainerNo("CSLU1234567");
+        booking.setContainerNo("MSCU6639870");
         booking.setWarehouseId(101L);
         booking.setSourceType("SIMULATION");
         booking.setRecordStatus("ACTIVE");
@@ -124,9 +124,9 @@ class LoadingPickServiceTest {
     }
 
     @Test
-    void opensTaskOnlyAfterReleasedBookingAndRealContainerNumber() {
+    void opensTaskAfterReleasedBookingWithoutWaitingForRealContainerNumber() {
         var booking = new com.baiyue.firstleg.entity.ContainerBookingEntity();
-        booking.setId(40L); booking.setContainerNo("MSCU-001");
+        booking.setId(40L);
         var plan = new com.baiyue.firstleg.entity.LoadingPlanEntity();
         plan.setId(10L); plan.setContainerBookingId(40L); plan.setPlanStatus("EDITING");
         plan.setPreloadPushedAt(java.time.LocalDateTime.now());
@@ -136,7 +136,7 @@ class LoadingPickServiceTest {
         when(smartLoadingRepository.planByBooking(40L)).thenReturn(plan);
         when(smartLoadingRepository.plan(10L)).thenReturn(plan);
         when(loadingModelBridge.byLoadingPlan(10L)).thenReturn(List.of(
-            new Link(1L, 1L, 50L, 2L, "CONFIRMED", 1, 10L, 40L, "MSCU-001", "EDITING", 1, 1, null)));
+            new Link(1L, 1L, 50L, 2L, "CONFIRMED", 1, 10L, 40L, null, "EDITING", 1, 1, null)));
         when(oceanBookingRepository.allocationByContainer(40L)).thenReturn(allocation);
         when(oceanBookingRepository.find(90L)).thenReturn(ocean);
         when(repository.taskByPlan(10L)).thenReturn(null);
@@ -191,11 +191,11 @@ class LoadingPickServiceTest {
     }
 
     @Test
-    void planConfirmationGateRequiresRealContainerAndReleasedBooking() {
+    void planConfirmationGateRequiresReleasedBookingButNotRealContainerNumber() {
         Link link = new Link(1L, 1L, 50L, 2L, "PENDING", 1,
             10L, 40L, "MSCU-001", "EDITING", 3, 2, null);
         var booking = new com.baiyue.firstleg.entity.ContainerBookingEntity();
-        booking.setId(40L); booking.setContainerNo("MSCU-001");
+        booking.setId(40L);
         var allocation = new OceanBookingContainerAllocationEntity();
         allocation.setOceanBookingId(90L);
         var ocean = new OceanBookingEntity();
@@ -209,17 +209,21 @@ class LoadingPickServiceTest {
     }
 
     @Test
-    void planConfirmationGateRejectsMissingRealContainerNumber() {
+    void planConfirmationGateAllowsMissingRealContainerNumber() {
         Link link = new Link(1L, 1L, 50L, 2L, "PENDING", 1,
             10L, 40L, null, "EDITING", 3, 2, null);
         var booking = new com.baiyue.firstleg.entity.ContainerBookingEntity();
         booking.setId(40L);
+        var allocation = new OceanBookingContainerAllocationEntity();
+        allocation.setOceanBookingId(90L);
+        var ocean = new OceanBookingEntity();
+        ocean.setId(90L); ocean.setStatus("RELEASED");
         when(loadingModelBridge.requireAllocatedLinksForConfirmation(10L)).thenReturn(List.of(link));
         when(smartLoadingRepository.booking(40L)).thenReturn(booking);
+        when(oceanBookingRepository.allocationByContainer(40L)).thenReturn(allocation);
+        when(oceanBookingRepository.find(90L)).thenReturn(ocean);
 
-        assertThatThrownBy(() -> service.requirePreloadConfirmationReady(10L))
-            .isInstanceOf(BizException.class).hasMessageContaining("真实集装箱号");
-        verify(oceanBookingRepository, never()).allocationByContainer(anyLong());
+        assertThat(service.requirePreloadConfirmationReady(10L)).containsExactly(link);
     }
 
     @Test
@@ -775,6 +779,25 @@ class LoadingPickServiceTest {
         verify(loadingListService, never()).finishFromPda(anyLong(), anyLong(), anyLong(), anyString());
     }
 
+    @Test
+    void completionRejectsMissingRealContainerNumberBeforeCreatingCommand() {
+        LoadingPickTaskEntity loading = task();
+        ContainerBookingEntity booking = new ContainerBookingEntity();
+        booking.setId(99L);
+        booking.setWarehouseId(101L);
+        booking.setRecordStatus("ACTIVE");
+        when(repository.taskForUpdate(20L)).thenReturn(loading);
+        when(repository.activeBookingByTask(20L)).thenReturn(booking);
+
+        assertThatThrownBy(() -> service.complete(20L,
+            new CompleteLoadingRequest(0, "complete-missing-container", "checked"), 9L, "operator"))
+            .isInstanceOf(BizException.class).hasMessageContaining("确认装柜完成前");
+
+        verify(repository, never()).allTaskItemsResolved(20L);
+        verify(completionCommands, never()).insert(any());
+        verify(repository, never()).acceptCompletion(anyLong(), anyInt());
+    }
+
     @Test
     void differentOperationIdIsRejectedImmediatelyWithConflict() {
         // different operationId is a canonical A0409 CONFLICT while the durable command is active.