diff --git a/src/pages/operation/operation.vue b/src/pages/operation/operation.vue
index dc44de1..a9b0f42 100644
--- a/src/pages/operation/operation.vue
+++ b/src/pages/operation/operation.vue
@@ -181,7 +181,23 @@
 			drainScanQueue() { if (!this._pageActive || this.loading || this.busy || this.activeTarget === 'quantity' || !this.scanQueue.length || this.phase !== 'receive') return; const next = this.scanQueue.shift(); this.dispatchHardwareScan(next) },
 			suspendReceiving() { this._pageActive = false; this._scanEpoch = (this._scanEpoch || 0) + 1; this._resumeReceiving = true; clearTimeout(this._drainTimer); clearTimeout(this._toastTimer); this.scanQueue = []; this.stopScanner() },
 			scheduleScanDrain() { clearTimeout(this._drainTimer); if (!this._pageActive) return; const epoch = this._scanEpoch || 0; this._drainTimer = setTimeout(() => { if (this._pageActive && epoch === (this._scanEpoch || 0)) this.drainScanQueue() }, 0) },
-			async run(action, work) { if (this.busy || !this._pageActive) throw new Error('当前页面未就绪，请返回作业页重试'); this.busy = true; this.error = null; try { const result = await work(); this.showToast(`${action}成功`, 'success'); return result } catch (error) { const mappedError = toReceivingError(error, `${action}失败`); this.error = mappedError; playErrorSound(); this.showToast(mappedError.message, 'error'); throw mappedError } finally { this.busy = false; if (this._pageActive && this._resumeReceiving) { this._resumeReceiving = false; this.bootstrap() } else this.scheduleScanDrain() } },
+			async run(action, work, isCurrent = () => true) {
+				if (this.busy || !this._pageActive) throw new Error('当前页面未就绪，请返回作业页重试')
+				this.busy = true; this.error = null
+				try {
+					const result = await work()
+					// 只读校验失效后不再回写结果，也不提示旧请求成功或失败。
+					if (!isCurrent()) return null
+					this.showToast(`${action}成功`, 'success'); return result
+				} catch (error) {
+					if (!isCurrent()) return null
+					const mappedError = toReceivingError(error, `${action}失败`)
+					this.error = mappedError; playErrorSound(); this.showToast(mappedError.message, 'error'); throw mappedError
+				} finally {
+					this.busy = false
+					if (this._pageActive && this._resumeReceiving) { this._resumeReceiving = false; this.bootstrap() } else this.scheduleScanDrain()
+				}
+			},
 			setScanTargetForCurrent(value) { receiving.activeScanTarget = value?.status === 'WAIT_SIGN' ? 'container' : 'carton' },
 			async restorePhotoPreviews() { await Promise.all(receiving.photoSlots.filter((photo) => photo?.downloadPath && !photo.localPath).map(async (photo) => { try { await restoreReceivingPhoto(photo, downloadCurrentUnloadPhoto) } catch (error) { this.error = error } })) },
 			async restoreDomesticPhotoPreviews() { if (this.phase !== 'sign' && !this.domesticPhotosExpanded) return; await Promise.all(this.domesticLoadingPhotos.filter((photo) => photo.downloadPath && !photo.localPath).map((photo) => this.loadDomesticPhoto(photo))) },
@@ -205,13 +221,21 @@
 			async resolvePallet(raw) {
 				const palletCode = String(raw?.detail?.value ?? raw ?? this.palletInput).trim()
 				if (!palletCode || !this.activeInbound || this.busy) return
+				const inbound = this.activeInbound, current = this.current, inboundCode = inbound.inboundCode
+				const scanEpoch = this._scanEpoch || 0, operatorId = session.currentUser?.id, warehouseId = session.currentUser?.warehouseId, tenantId = session.tenantId
+				// 响应只属于发起时的输入、入仓单、柜会话和作业身份；离开再返回也必须重验。
+				const isCurrent = () => this._pageActive && scanEpoch === (this._scanEpoch || 0)
+					&& this.current === current && this.activeInbound === inbound && this.activeInbound.inboundCode === inboundCode
+					&& session.currentUser?.id === operatorId && session.currentUser?.warehouseId === warehouseId && session.tenantId === tenantId
+					&& this.palletInput.trim() === palletCode
 				receiving.resolvedPallet = null; this.palletInput = palletCode; this.packageCount = ''; receiving.activeScanTarget = 'pallet'
 				try {
 					const value = await this.run('校验托盘', async () => {
-						const result = await resolveCurrentPallet(palletCode, this.activeInbound.inboundCode)
+						const result = await resolveCurrentPallet(palletCode, inboundCode)
 						if (!result.compatible) throw Object.assign(new Error('托盘不匹配，请重扫'), { code: 'PALLET_INCOMPATIBLE' })
 						return result
-					})
+					}, isCurrent)
+					if (!value || !isCurrent()) return
 					receiving.resolvedPallet = value; this.palletInput = value.palletCode; this.packageCount = Number(value.currentReceivedPackages || 0) || ''
 					receiving.activeScanTarget = this.activeInbound.destinationType === 'FBA' ? 'quantity' : 'carton'; playSuccessSound()
 				} catch (error) { if (!this.error) this.error = error }
diff --git a/tests/receiving-lifecycle.test.mjs b/tests/receiving-lifecycle.test.mjs
index 5f3b27f..c17812c 100644
--- a/tests/receiving-lifecycle.test.mjs
+++ b/tests/receiving-lifecycle.test.mjs
@@ -91,6 +91,79 @@ test('an incompatible pallet never reports success and a corrected scan can be v
   assert.equal(successes, 1)
 })
 
+test('late pallet validation cannot replace edited input and only the corrected pallet can be received', async t => {
+  store.resetReceivingSession(); store.setCurrentReceiving(sessionValue())
+  store.receiving.resolvedCarton = { inboundCode: 'IN-A', cartonMark: 'IN-A#22-1', destinationType: 'FBA' }
+  const pending = defer(), receipts = [], calls = [], toasts = []; let successes = 0
+  const { vm } = page({ toReceivingError, playSuccessSound: () => successes++,
+    resolveCurrentPallet: (palletCode, inboundCode) => {
+      calls.push({ palletCode, inboundCode })
+      return palletCode === 'PALLET-A' ? pending.promise : Promise.resolve({ palletCode, compatible: true, version: 2, currentReceivedPackages: 3 })
+    },
+    receiveCurrentBulk: async payload => { receipts.push(payload); return {} },
+    getCurrentReceiving: async () => sessionValue(),
+  })
+  t.after(() => vm.suspendReceiving())
+  vm.showToast = (message, type) => toasts.push({ message, type }); vm.applyCurrentReceiving = async () => {}
+  const validation = vm.resolvePallet('PALLET-A')
+  vm.palletInput = 'PALLET-B'
+  pending.resolve({ palletCode: 'PALLET-A', compatible: true, version: 1, currentReceivedPackages: 3 })
+  await validation
+  assert.equal(vm.palletInput, 'PALLET-B')
+  assert.equal(vm.resolvedPallet, null)
+  assert.equal(vm.packageCount, '')
+  assert.equal(vm.canSubmitReceipt, false)
+  assert.equal(vm.busy, false)
+  assert.equal(successes, 0)
+  assert.deepEqual(toasts, [])
+  await vm.submitReceipt(); assert.equal(receipts.length, 0)
+  await vm.resolvePallet('PALLET-B')
+  assert.equal(vm.canSubmitReceipt, true)
+  assert.equal(successes, 1)
+  await vm.submitReceipt()
+  assert.deepEqual(calls, [{ palletCode: 'PALLET-A', inboundCode: 'IN-A' }, { palletCode: 'PALLET-B', inboundCode: 'IN-A' }])
+  assert.deepEqual(receipts.map(({ palletCode }) => palletCode), ['PALLET-B'])
+})
+
+test('obsolete pallet failures cannot replace current input or feedback', async t => {
+  store.resetReceivingSession(); store.setCurrentReceiving(sessionValue())
+  store.receiving.resolvedCarton = { inboundCode: 'IN-A', cartonMark: 'IN-A#22-1', destinationType: 'FBA' }
+  const pending = defer(), toasts = []; let failures = 0
+  const { vm } = page({ toReceivingError, resolveCurrentPallet: () => pending.promise, playErrorSound: () => failures++ })
+  t.after(() => vm.suspendReceiving()); vm.showToast = (message, type) => toasts.push({ message, type })
+  const validation = vm.resolvePallet('PALLET-A')
+  vm.palletInput = 'PALLET-B'
+  pending.reject(Object.assign(new Error('Pallet code is not part of the current FBA destination group'), { code: 'A0404' }))
+  await validation
+  assert.equal(vm.palletInput, 'PALLET-B'); assert.equal(vm.error, null)
+  assert.equal(vm.resolvedPallet, null); assert.equal(vm.canSubmitReceipt, false)
+  assert.equal(vm.busy, false); assert.equal(failures, 0); assert.deepEqual(toasts, [])
+})
+
+test('late pallet validation cannot cross a receiving context or page lifetime', async t => {
+  for (const [name, change] of [
+    ['carton', () => { store.receiving.resolvedCarton = { inboundCode: 'IN-B', cartonMark: 'IN-B#1', destinationType: 'FBA' } }],
+    ['container', () => store.setCurrentReceiving(sessionValue({ containerNo: 'CAB-B' }))],
+    ['operator', ({ deps }) => { deps.session.currentUser = { id: 'another-operator', warehouseId: '900' } }],
+    ['warehouse', ({ deps }) => { deps.session.currentUser.warehouseId = '901' }],
+    ['hide and return', ({ vm, definition }) => { definition.onHide.call(vm); definition.onShow.call(vm) }],
+  ]) await t.test(name, async t => {
+    store.resetReceivingSession(); store.setCurrentReceiving(sessionValue())
+    store.receiving.resolvedCarton = { inboundCode: 'IN-A', cartonMark: 'IN-A#22-1', destinationType: 'FBA' }
+    const pending = defer(), toasts = []; let successes = 0
+    const context = page({ toReceivingError, resolveCurrentPallet: () => pending.promise, playSuccessSound: () => successes++ })
+    const { vm } = context
+    t.after(() => vm.suspendReceiving()); vm.bootstrap = async () => {}; vm.showToast = (message, type) => toasts.push({ message, type })
+    const validation = vm.resolvePallet('PALLET-A')
+    change(context)
+    pending.resolve({ palletCode: 'PALLET-A', compatible: true, version: 1, currentReceivedPackages: 3 })
+    await validation
+    assert.equal(vm.resolvedPallet, null); assert.equal(vm.packageCount, '')
+    assert.equal(vm.canSubmitReceipt, false); assert.equal(vm.busy, false)
+    assert.equal(successes, 0); assert.deepEqual(toasts, [])
+  })
+})
+
 test('signed photo changes, account/customer/cabinet changes and image failure cannot inherit stale previews', async () => {
   store.resetReceivingSession(); let calls = 0
   const { vm, deps } = page({ downloadCurrentUnloadPhoto: async () => `local:${++calls}`, downloadCurrentDomesticLoadingPhoto: async () => '' })