diff --git a/src/modules/loading-lists/api/platformLoadingLists.ts b/src/modules/loading-lists/api/platformLoadingLists.ts
index 4c409c78..6248fe26 100644
--- a/src/modules/loading-lists/api/platformLoadingLists.ts
+++ b/src/modules/loading-lists/api/platformLoadingLists.ts
@@ -11,6 +11,7 @@ export type PreloadConfirmationStatus = 'PENDING' | 'PARTIALLY_CONFIRMED' | 'CON
 export type PreloadBlockingReason =
   | 'LOADING_PLAN_NOT_EDITING'
   | 'PRELOAD_LINK_MISSING'
+  | 'CONTAINER_NO_MISSING'
   | 'OCEAN_BOOKING_NOT_LINKED'
   | 'OCEAN_BOOKING_NOT_RELEASED'
   | 'PDA_TASK_ALREADY_CREATED'
diff --git a/src/modules/loading-lists/components/LoadingListDetailDrawer.vue b/src/modules/loading-lists/components/LoadingListDetailDrawer.vue
index 387551fe..00c9f868 100644
--- a/src/modules/loading-lists/components/LoadingListDetailDrawer.vue
+++ b/src/modules/loading-lists/components/LoadingListDetailDrawer.vue
@@ -104,6 +104,7 @@ const visibleHistories = computed(() => {
 const blockingReasonLabels: Record<string, string> = {
   LOADING_PLAN_NOT_EDITING: '装柜计划已不在可确认的编辑状态',
   PRELOAD_LINK_MISSING: '装柜明细尚未完整关联入库预装票据',
+  CONTAINER_NO_MISSING: '尚未录入真实集装箱号，请先补录后再确认预装',
   OCEAN_BOOKING_NOT_LINKED: '尚未关联真实订舱',
   OCEAN_BOOKING_NOT_RELEASED: '关联订舱尚未放舱',
   PDA_TASK_ALREADY_CREATED: 'PDA 任务已创建，无需重复确认',
diff --git a/src/modules/loading-lists/pages/PreloadPlanDetailView.test.ts b/src/modules/loading-lists/pages/PreloadPlanDetailView.test.ts
index 9904e3c2..dcf1e06d 100644
--- a/src/modules/loading-lists/pages/PreloadPlanDetailView.test.ts
+++ b/src/modules/loading-lists/pages/PreloadPlanDetailView.test.ts
@@ -63,22 +63,21 @@ describe('PreloadPlanDetailView prototype contract', () => {
     expect(source).toContain(':confirm-loading="remarkSaving"')
   })
 
-  it('supports first entry and reasoned correction before PDA claim without blocking earlier flow', () => {
+  it('requires first entry before confirmation and still repairs historical tasks that were created without it', () => {
     expect(source).toContain("{ required: true, message: '请输入集装箱号'")
-    expect(source).toContain("summary?.status === 'EDITING'")
-    expect(source).toContain("(!pdaStatus || pdaStatus === 'PENDING')")
+    expect(source).toContain("['EDITING', 'LOADING'].includes(summary.status)")
+    expect(source).toContain('if (!summary.containerNo) return true')
     expect(source).not.toContain('summary?.containerNo && summary.status')
     expect(source).toContain('PDA 已领取或作业已开始，真实集装箱号只读。')
+    expect(source).toContain('该历史 PDA 任务缺少真实集装箱号；补录保存后即可进入任务。')
+    expect(source).toContain('确认预装前必须补录真实集装箱号。')
     expect(source).toContain("isContainerCorrection.value ? '纠正集装箱号 / 航次' : '补录集装箱号 / 航次'")
     expect(source).toContain("isContainerCorrection.value && !String(value || '').trim() ? new Error('纠错时请输入操作原因')")
     expect(source).toContain("String(value || '').trim().toUpperCase()")
     expect(source).toContain('operationReason: editForm.operationReason.trim() || null')
     expect(detailSource).toContain('v-if="canEditTransport"')
     expect(detailSource).toContain("summary.containerNo || '待补录'")
-    expect(source).toContain('由服务端按真实条件创建唯一 PDA 任务')
-    expect(source).toContain('缺号不阻断此前流程')
-    expect(source).toContain('PDA 确认装柜完成前由服务端执行最终门禁')
-    expect(source).not.toContain('真实集装箱号未录入时不能确认')
+    expect(detailSource).toContain("CONTAINER_NO_MISSING: '尚未录入真实集装箱号，请先补录后再确认预装'")
   })
 
   it('uses a flat blocking note instead of repeated colored page alerts', () => {
@@ -97,8 +96,7 @@ describe('PreloadPlanDetailView prototype contract', () => {
     expect(source).toContain('confirmSaving.value')
     expect(source).toContain('await loadDetail()')
     expect(source).toContain('本操作将确认整份预装计划')
-    expect(source).toContain('全部入库预装票据')
-    expect(source).toContain('当前页面不会伪造 PDA 成功')
+    expect(source).toContain(':confirm-disabled="!detail?.summary.readiness.canConfirm"')
     expect(source).not.toContain('/inbounds/')
   })
 
diff --git a/src/modules/loading-lists/pages/PreloadPlanDetailView.vue b/src/modules/loading-lists/pages/PreloadPlanDetailView.vue
index cf3cf835..2b1da4fa 100644
--- a/src/modules/loading-lists/pages/PreloadPlanDetailView.vue
+++ b/src/modules/loading-lists/pages/PreloadPlanDetailView.vue
@@ -52,16 +52,18 @@ const canEdit = computed(() => access.can('platform:firstleg:preload:edit'))
 const canCorrectTransport = computed(() => {
   const summary = detail.value?.summary
   const pdaStatus = summary?.readiness.pdaTaskStatus
-  return Boolean(canEdit.value && summary?.status === 'EDITING'
-    && (!pdaStatus || pdaStatus === 'PENDING'))
+  if (!canEdit.value || !summary || !['EDITING', 'LOADING'].includes(summary.status)) return false
+  if (!summary.containerNo) return true
+  return !pdaStatus || pdaStatus === 'PENDING'
 })
 const isContainerCorrection = computed(() => Boolean(detail.value?.summary.containerNo))
 const transportCorrectionNote = computed(() => {
   const summary = detail.value?.summary
   if (!summary) return ''
+  if (!summary.containerNo && summary.readiness.pdaTaskId) return '该历史 PDA 任务缺少真实集装箱号；补录保存后即可进入任务。'
   if (summary.readiness.pdaTaskStatus && summary.readiness.pdaTaskStatus !== 'PENDING') return 'PDA 已领取或作业已开始，真实集装箱号只读。'
   if (!canCorrectTransport.value) return '当前服务端阶段不允许纠正真实集装箱号。'
-  if (!summary.containerNo) return '真实集装箱号待补录；可在预装详情首次录入，PDA 领取或作业开始后只读。'
+  if (!summary.containerNo) return '确认预装前必须补录真实集装箱号。'
   return '真实集装箱号仅可在 PDA 领取前纠错，纠错保存时必须填写操作原因。'
 })
 const editDialogTitle = computed(() => isContainerCorrection.value ? '纠正集装箱号 / 航次' : '补录集装箱号 / 航次')