diff --git a/firstleg/AGENTS.md b/firstleg/AGENTS.md
index 7d925c740..d92bc8c77 100644
--- a/firstleg/AGENTS.md
+++ b/firstleg/AGENTS.md
@@ -86,7 +86,7 @@
 ## 国内货柜履约装柜与 PDA 资源结算
 
 - 智能装柜全局工作台由服务端把业务渠道分组映射为实际渠道，并分别分页查询候选与 `WAIT_LOADING/EDITING/LOADING` 柜次；候选支持按创建日期和预计到货日期闭区间筛选，状态筛选使用最多四项的 `orderStatuses`，未传表示 `PENDING_REVIEW/WAIT_MEASURE/WAIT_SPLIT/LOADING` 全部未完成状态。状态只用于搜索和展示，能否加入以响应 `canAssign` 为准，由有效柜次占用、剩余箱数、容量、组锁和版本等事实决定；人工加入允许订单国内仓及渠道与柜次不同，智能推荐允许跨国内仓但仍只选择柜次渠道。容积和重量均允许达到柜型额定值的 150%，超过即拒绝。待审核事实必须经 `PendingReviewOrderClient` 重新核验 Order 权威 `SUBMITTED` 订单，待审核或待测量可先占位，但确认预装和启动 PDA 前仍必须进入 `WAIT_SPLIT`。计划明细通过 `totalPackageCount/remainingPackageCount` 返回可调总量和余量：测量前取 Order 原始申报箱数，进入 `WAIT_SPLIT/LOADING` 后取最新已审核测量箱数；只读补充失败时保守回退当前已分配数，调整写入仍重新查询并校验权威数量。同柜不可拆组只有全部成员命中状态集合时才返回，且必须成员完整、满箱并作为单个分页与分配单元，不能跨页或拆分。一次性移除未拣明细时，普通未拣项直接移除；同柜组仅全组未拣时整组移除，任一成员已拣则整组保留，单事务只递增一次计划版本。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。
-- 客户入库费用只在登录客户范围、测量审核通过、`feeStatus=SENT` 且存在已发布明细时可见；确认必须具备 `merchant:order:edit`，携带当前 `expectedFeeVersion` 与幂等键。成功后记录确认成员和时间并将该费用版本永久锁定，平台不得再调整；旧版本、未发送或重复异参确认均返回冲突，不做兼容覆盖。
+- 客户入库费用只在登录客户范围、测量审核通过、`feeStatus=SENT` 且存在已发布明细时可见；确认必须具备 `merchant:order:edit`，携带当前 `expectedFeeVersion` 与幂等键。成功后记录确认成员和时间；客户未确认或该票尚未装柜完成时，平台仍可修改箱规规则、生成新费用版本并重新发送，新版本必须清空旧版客户确认快照。仅当“客户已确认且该票已装柜完成”同时成立时最终冻结；装柜完成不得代替客户自动确认。旧版本、未发送或重复异参确认均返回冲突，不做兼容覆盖。
 - PDA 拣货以 `fl_inbound_carton_label.box_code` 对应的稳定箱唛箱码为扫描身份；审核建单、重复打印、手工测量和墨家测量复用同一映射，版本字段只用于并发控制，不进入扫码文本。一个有效且未重复的箱码扫描表示拣出一箱，不得以 SKU、商品件数或页面展示字段替代箱码。任务下发与提交契约见 `src/main/resources/openapi/phase3-pda-convergence-v1.yaml`。
 - 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。
 - 首张称重图片确认时按 `max(已确认称重图片数, ceil(有效体积 / 默认托盘容量))` 尽力预留并确认整票库位块；有效体积先取入库单已落地的正数实测体积，否则对最新测量批次的正数 `totalVolumeCbm/originalVolumeCbm` 取较大值，再无有效值才查询 Order 最新客户申报体积，全部无效则拒绝。后续确认绑定最小空槽，所需槽数增长时通过 Warehouse `/blocks/expand` 原子追加，既有 `blockId/slotNo/reservationId/locationId/sharedOverflow` 不得变化。库位指引失败只记录警告，不阻断称重确认；测量提交后以最新已确认图片调用 `ensureForSubmission` 再次补齐和校验，失败同样不回滚已提交的测量主流程。Firstleg 必须显式保存 `weightResultId -> blockId/slotNo/reservationId/locationId/locationCode`，按 `confirmedAt + weightResultId` 稳定顺序绑定，禁止按列表下标推断；普通连续位不足的新增槽由 Warehouse 放入共享 A0，不阻断确认。
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/controller/PlatformInboundMeasurementController.java b/firstleg/src/main/java/com/baiyue/firstleg/controller/PlatformInboundMeasurementController.java
index a7196bb7b..697053bd9 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/controller/PlatformInboundMeasurementController.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/controller/PlatformInboundMeasurementController.java
@@ -93,6 +93,22 @@ public class PlatformInboundMeasurementController {
         return ApiResponse.success(service.saveDraft(tenantId, inboundId, user.userId(), request));
     }
 
+    @BusinessAudit(event = "INBOUND_MEASUREMENT_CALCULATION_STRATEGY_UPDATE", resourceType = "INBOUND",
+        resourceId = "#inboundId", description = "更新入库测量箱规计算规则")
+    @Operation(summary = "更新箱规计算规则",
+        description = "独立更新当前测量批次全部明细的箱规计算规则并重算体积；不改变测量提交或审核状态。"
+            + "仅当客户已确认费用且该票已装柜完成时冻结。")
+    @PutMapping("/measurement/calculation-strategy")
+    @PreAuthorize("hasAuthority('platform:firstleg:inbound:measure:edit')")
+    public ApiResponse<InboundMeasurementResponses.CalculationStrategyUpdated> updateCalculationStrategy(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam long tenantId,
+        @PathVariable long inboundId,
+        @Valid @RequestBody InboundMeasurementRequests.UpdateCalculationStrategyRequest request) {
+        requirePlatformTenant(user, tenantId);
+        return ApiResponse.success(service.updateCalculationStrategy(tenantId, inboundId, request));
+    }
+
     @BusinessAudit(event = "INBOUND_MEASUREMENT_SUBMIT", resourceType = "INBOUND",
         resourceId = "#inboundId", description = "确认测量并提交审核")
     @Operation(summary = "确认测量并提交审核",
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/dto/InboundMeasurementRequests.java b/firstleg/src/main/java/com/baiyue/firstleg/dto/InboundMeasurementRequests.java
index 957556113..92b66a040 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/dto/InboundMeasurementRequests.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/dto/InboundMeasurementRequests.java
@@ -87,6 +87,14 @@ public final class InboundMeasurementRequests {
     ) {
     }
 
+    public record UpdateCalculationStrategyRequest(
+        @NotNull @Positive Long measurementId,
+        @NotNull @PositiveOrZero Integer version,
+        @NotBlank @jakarta.validation.constraints.Pattern(regexp = "ACTUAL|ADD|MULTIPLY") String coefficientMode,
+        @Positive Long chargeRuleId
+    ) {
+    }
+
     public record ConfirmedPackageCountRequest(
         @NotNull @PositiveOrZero Integer measurementVersion,
         @NotNull @Positive @Max(1000000) Integer confirmedPackageCount
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/dto/InboundMeasurementResponses.java b/firstleg/src/main/java/com/baiyue/firstleg/dto/InboundMeasurementResponses.java
index 7934f7b4f..8dd559f63 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/dto/InboundMeasurementResponses.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/dto/InboundMeasurementResponses.java
@@ -183,6 +183,11 @@ public final class InboundMeasurementResponses {
     public record DraftSaved(Long measurementId, Integer version, String status) {
     }
 
+    public record CalculationStrategyUpdated(
+        Long measurementId, Integer version, String status, String coefficientMode, Long chargeRuleId
+    ) {
+    }
+
     public record MeasurementSubmitted(Long measurementId, Integer version, String processStatus,
                                        String measureReviewStatus,
                                        @Schema(description = "测量完成后的推荐托盘类型，仅为建议，不代表已分配托盘",
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/loading/service/LoadingDeliveryService.java b/firstleg/src/main/java/com/baiyue/firstleg/loading/service/LoadingDeliveryService.java
index 096ee9003..aa064081f 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/loading/service/LoadingDeliveryService.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/loading/service/LoadingDeliveryService.java
@@ -15,7 +15,6 @@ import com.baiyue.firstleg.loading.mapper.LoadingInboundMapper.CompletionTarget;
 import com.baiyue.firstleg.loading.bridge.service.LoadingModelBridgeService;
 import com.baiyue.firstleg.loading.repository.LoadingRepository;
 import com.baiyue.firstleg.repository.LoadingPickRepository;
-import com.baiyue.firstleg.service.FbaPricingService;
 import com.baiyue.firstleg.service.InboundHoldGuard;
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
@@ -42,7 +41,6 @@ public class LoadingDeliveryService {
     @Resource private LoadingCompletionGateService completionGate;
     @Resource private InboundStatusHistoryMapper histories;
     @Resource private CabinetLoadingEvidenceService cabinetEvidenceService;
-    @Resource private FbaPricingService pricingService;
     @Resource private ObjectMapper objectMapper;
     @Resource private InboundHoldGuard inboundHoldGuard;
 
@@ -69,7 +67,6 @@ public class LoadingDeliveryService {
         }
         if ("LOADED".equals(inbound.processStatus()) || "DELIVERED".equals(inbound.processStatus())) {
             requireLoadingPlanGate(tenantId, inboundId, acceptedPdaCompletion);
-            pricingService.autoConfirmAfterLoading(tenantId, inboundId);
             return complete(tenantId, inboundId, operatorId, COMPLETE_LOADING, key,
                 new LoadingActionResponse(inbound.processStatus()));
         }
@@ -80,7 +77,6 @@ public class LoadingDeliveryService {
         requireCabinetEvidence(tenantId, inboundId);
         if (repository.completeLoading(tenantId, inboundId, operatorId, request.expectedVersion()) != 1) throw concurrent();
         addHistory(tenantId, inboundId, "LOADING", "LOADED", COMPLETE_LOADING, request.remark(), operatorId, operatorName);
-        pricingService.autoConfirmAfterLoading(tenantId, inboundId);
         return complete(tenantId, inboundId, operatorId, COMPLETE_LOADING, key,
             new LoadingActionResponse("LOADED"));
     }
@@ -124,7 +120,6 @@ public class LoadingDeliveryService {
                                                             CompletionTarget target,
                                                             boolean acceptedPdaCompletion) {
         if ("LOADED".equals(target.loadedChildStatus())) {
-            pricingService.autoConfirmAfterLoading(tenantId, target.completionInboundId());
             return complete(tenantId, inboundId, operatorId, COMPLETE_LOADING, key,
                 new LoadingActionResponse("LOADED"));
         }
@@ -140,7 +135,6 @@ public class LoadingDeliveryService {
         repository.aggregateRootLoaded(tenantId, target.rootInboundId(), operatorId);
         addHistory(tenantId, target.completionInboundId(), "LOADING", "LOADED", COMPLETE_LOADING,
             request.remark(), operatorId, operatorName);
-        pricingService.autoConfirmAfterLoading(tenantId, target.completionInboundId());
         return complete(tenantId, inboundId, operatorId, COMPLETE_LOADING, key,
             new LoadingActionResponse("LOADED"));
     }
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/repository/FbaPricingRepository.java b/firstleg/src/main/java/com/baiyue/firstleg/repository/FbaPricingRepository.java
index 60356812d..35d8e9f2a 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/repository/FbaPricingRepository.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/repository/FbaPricingRepository.java
@@ -285,12 +285,12 @@ public class FbaPricingRepository {
             .set(InboundFeeEntity::getUpdatedAt, LocalDateTime.now()));
     }
 
-    public int markInboundAdjusted(long tenantId, long inboundId, String feeStatus,
+    public int markInboundAdjusted(long tenantId, long inboundId, String processStatus, String feeStatus,
                                    String chargeUnit, java.math.BigDecimal chargeableQuantity) {
         LambdaUpdateWrapper<InboundPricingEntity> update = new LambdaUpdateWrapper<InboundPricingEntity>()
             .eq(InboundPricingEntity::getTenantId, tenantId)
             .eq(InboundPricingEntity::getId, inboundId)
-            .eq(InboundPricingEntity::getProcessStatus, "WAIT_SPLIT")
+            .eq(InboundPricingEntity::getProcessStatus, processStatus)
             .set(InboundPricingEntity::getFeeStatus, feeStatus);
         if ("KG".equals(chargeUnit)) {
             update.set(InboundPricingEntity::getChargeableWeightKg, chargeableQuantity);
@@ -308,7 +308,8 @@ public class FbaPricingRepository {
             .eq(InboundPricingEntity::getProcessStatus, processStatus)
             .in(InboundPricingEntity::getFeeStatus, List.of("UNPRICED", "CALCULATED", "SENT"))
             .set(InboundPricingEntity::getFeeStatus, "CALCULATED");
-        if (!List.of("WAIT_PALLET", "WAIT_PALLETIZE", "WAIT_SPLIT", "LOADING").contains(processStatus)) {
+        if (!List.of("WAIT_PALLET", "WAIT_PALLETIZE", "WAIT_SPLIT", "LOADING", "LOADED", "DELIVERED")
+            .contains(processStatus)) {
             update.set(InboundPricingEntity::getProcessStatus, "FEE_CONFIRMING");
         }
         if ("KG".equals(chargeMode)) update.set(InboundPricingEntity::getChargeableWeightKg, chargeable);
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/repository/InboundMeasurementRepository.java b/firstleg/src/main/java/com/baiyue/firstleg/repository/InboundMeasurementRepository.java
index 8ae36d4cb..dc0b5298a 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/repository/InboundMeasurementRepository.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/repository/InboundMeasurementRepository.java
@@ -71,6 +71,14 @@ public class InboundMeasurementRepository {
             .eq(InboundMeasurementEntity::getId, measurementId));
     }
 
+    public InboundMeasurementEntity lockMeasurement(long tenantId, long inboundId, long measurementId) {
+        return measurements.selectOne(new LambdaQueryWrapper<InboundMeasurementEntity>()
+            .eq(InboundMeasurementEntity::getTenantId, tenantId)
+            .eq(InboundMeasurementEntity::getInboundId, inboundId)
+            .eq(InboundMeasurementEntity::getId, measurementId)
+            .last("FOR UPDATE"));
+    }
+
     public InboundMeasurementEntity findLatestMeasurement(long tenantId, long inboundId) {
         return measurements.selectOne(new LambdaQueryWrapper<InboundMeasurementEntity>()
             .eq(InboundMeasurementEntity::getTenantId, tenantId)
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/service/FbaPricingService.java b/firstleg/src/main/java/com/baiyue/firstleg/service/FbaPricingService.java
index ace5297cd..0120b6d46 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/service/FbaPricingService.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/service/FbaPricingService.java
@@ -44,7 +44,6 @@ public class FbaPricingService {
     private static final BigDecimal ADJUST_TOLERANCE_PERCENT = new BigDecimal("10.00");
     private static final BigDecimal ONE_HUNDRED = new BigDecimal("100");
     private static final long AUTOMATIC_CONFIRM_OPERATOR_ID = 0L;
-    private static final String AUTOMATIC_CONFIRM_OPERATOR_NAME = "装柜完成自动确认";
     private static final String CONTAINER_RECALCULATE_OPERATION = "CONTAINER_FEE_RECALCULATE";
     @Resource
     private FbaPricingRepository repository;
@@ -99,8 +98,8 @@ public class FbaPricingService {
             if (published == null || !"SENT".equals(published.getFeeStatus())) {
                 throw conflict("费用状态已变化，请刷新后重试");
             }
-            if (published.getCustomerConfirmedAt() != null) {
-                throw conflict("客户已确认该费用，不允许再修改或重新发送");
+            if (feeRevisionLocked(inbound, published)) {
+                throw conflict("客户已确认且该票已装柜完成，不允许再修改或重新发送费用");
             }
         }
         var measurement = measurementRepository.findLatestMeasurement(tenantId, inboundId);
@@ -390,8 +389,8 @@ public class FbaPricingService {
     public FeeSnapshotResponse confirm(long tenantId, long operatorId, long inboundId,
                                        String idempotencyKey) {
         InboundPricingEntity inbound = requireApprovedInbound(tenantId, inboundId);
-        if (!feeEditableBeforeLoading(inbound.getProcessStatus())) {
-            throw conflict("订单已进入装柜流程，不能再修改或发送费用");
+        if (!feeRevisionStatusSupported(inbound.getProcessStatus())) {
+            throw conflict("当前入库单状态不允许确认费用");
         }
         InboundFeeEntity current = repository.findLatestFee(tenantId, inboundId);
         if (current == null) throw conflict("入库单尚无可确认的费用试算");
@@ -412,8 +411,8 @@ public class FbaPricingService {
     public FeeSnapshotResponse send(long tenantId, long operatorId, long inboundId,
                                     String idempotencyKey) {
         InboundPricingEntity inbound = requireApprovedInbound(tenantId, inboundId);
-        if (!feeEditableBeforeLoading(inbound.getProcessStatus())) {
-            throw conflict("订单已进入装柜流程，不能再修改或发送费用");
+        if (!feeRevisionStatusSupported(inbound.getProcessStatus())) {
+            throw conflict("当前入库单状态不允许发送费用");
         }
         InboundFeeEntity current = repository.findLatestFee(tenantId, inboundId);
         if (current == null) throw conflict("入库单尚无费用快照");
@@ -445,21 +444,6 @@ public class FbaPricingService {
         return response(tenantId, fee.getId(), null);
     }
 
-    /** 客户未操作时，装柜完成以系统身份确认最新一版已发送费用。 */
-    @Transactional
-    public void autoConfirmAfterLoading(long tenantId, long inboundId) {
-        InboundFeeEntity current = repository.findLatestFeeForUpdate(tenantId, inboundId);
-        if (current == null || !"SENT".equals(current.getFeeStatus())
-            || current.getCustomerConfirmedAt() != null) {
-            return;
-        }
-        LocalDateTime now = LocalDateTime.now(clock);
-        if (repository.confirmFeeByCustomer(tenantId, current.getId(), current.getFeeVersion(),
-                AUTOMATIC_CONFIRM_OPERATOR_ID, AUTOMATIC_CONFIRM_OPERATOR_NAME, now) != 1) {
-            throw conflict("装柜完成自动确认费用失败，请重试");
-        }
-    }
-
     @Transactional
     public FeeSnapshotResponse confirmByCustomer(long tenantId, long operatorId, String operatorName,
                                                  long inboundId, int expectedFeeVersion,
@@ -498,15 +482,15 @@ public class FbaPricingService {
                                                AdjustFeeRequest request, String idempotencyKey) {
         InboundPricingEntity inbound = repository.findInbound(tenantId, inboundId);
         if (inbound == null) throw new BizException(ResultCode.NOT_FOUND, "入库单不存在");
-        if (!isCompletedInbound(inbound.getProcessStatus())) {
-            throw conflict("只能在待分柜阶段修改初算或已发布费用");
+        if (!feeRevisionStatusSupported(inbound.getProcessStatus())) {
+            throw conflict("当前入库单状态不允许修改初算或已发布费用");
         }
         InboundFeeEntity current = repository.findLatestFee(tenantId, inboundId);
         if (current == null || !List.of("CALCULATED", "CONFIRMED", "SENT").contains(current.getFeeStatus())) {
             throw conflict("入库单没有可修改的初算或已发布费用");
         }
-        if (current.getCustomerConfirmedAt() != null) {
-            throw conflict("客户已确认该费用，不允许再修改");
+        if (feeRevisionLocked(inbound, current)) {
+            throw conflict("客户已确认且该票已装柜完成，不允许再修改费用");
         }
         if (!request.expectedFeeVersion().equals(current.getFeeVersion())) {
             throw conflict("费用版本已变化，请刷新后重试");
@@ -554,6 +538,9 @@ public class FbaPricingService {
         adjusted.setConfirmedAt(published ? now : null);
         adjusted.setSentBy(published ? operatorId : null);
         adjusted.setSentAt(published ? now : null);
+        adjusted.setCustomerConfirmedBy(null);
+        adjusted.setCustomerConfirmedByName(null);
+        adjusted.setCustomerConfirmedAt(null);
         adjusted.setCreatedAt(now);
         adjusted.setUpdatedAt(now);
         if (repository.supersedeCurrent(tenantId, current.getId(), current.getFeeStatus()) != 1) {
@@ -576,7 +563,7 @@ public class FbaPricingService {
             extra.setRemark(request.reason().trim());
             repository.insertItem(extra);
         }
-        if (repository.markInboundAdjusted(tenantId, inboundId, adjusted.getFeeStatus(),
+        if (repository.markInboundAdjusted(tenantId, inboundId, inbound.getProcessStatus(), adjusted.getFeeStatus(),
                 adjusted.getChargeUnit(), quantity) != 1) {
             throw conflict("入库单状态已变化，费用调整未保存");
         }
@@ -594,7 +581,7 @@ public class FbaPricingService {
 
     private InboundPricingEntity requireEligibleInbound(long tenantId, long inboundId) {
         InboundPricingEntity inbound = requireApprovedInbound(tenantId, inboundId);
-        if (!feeEditableBeforeLoading(inbound.getProcessStatus())
+        if (!feeRevisionStatusSupported(inbound.getProcessStatus())
             || !List.of("UNPRICED", "CALCULATED", "SENT").contains(inbound.getFeeStatus())) {
             throw conflict("当前入库单状态不允许费用试算");
         }
@@ -613,20 +600,23 @@ public class FbaPricingService {
         return inbound;
     }
 
-    private static boolean isCompletedInbound(String processStatus) {
-        return "WAIT_SPLIT".equals(processStatus);
-    }
-
     private static boolean preserveProcessStatusDuringPricing(String processStatus) {
-        return List.of("WAIT_PALLET", "WAIT_PALLETIZE", "WAIT_SPLIT", "LOADING").contains(processStatus);
+        return List.of("WAIT_PALLET", "WAIT_PALLETIZE", "WAIT_SPLIT", "LOADING", "LOADED", "DELIVERED")
+            .contains(processStatus);
     }
 
-    private static boolean feeEditableBeforeLoading(String processStatus) {
+    private static boolean feeRevisionStatusSupported(String processStatus) {
         return List.of("WAIT_MEASURE", "MEASURING", "MEASURE_PENDING", "MEASURE_REJECTED",
-            "WAIT_PRICING", "FEE_CONFIRMING", "WAIT_PALLET", "WAIT_PALLETIZE", "WAIT_SPLIT", "LOADING")
+            "WAIT_PRICING", "FEE_CONFIRMING", "WAIT_PALLET", "WAIT_PALLETIZE", "WAIT_SPLIT", "LOADING",
+            "LOADED", "DELIVERED")
             .contains(processStatus);
     }
 
+    private static boolean feeRevisionLocked(InboundPricingEntity inbound, InboundFeeEntity fee) {
+        return fee != null && fee.getCustomerConfirmedAt() != null
+            && List.of("LOADED", "DELIVERED").contains(inbound.getProcessStatus());
+    }
+
     private static PricingDestinationType destinationType(InboundPricingEntity inbound) {
         try {
             return PricingDestinationType.valueOf(inbound.getDestinationType());
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/service/InboundMeasurementService.java b/firstleg/src/main/java/com/baiyue/firstleg/service/InboundMeasurementService.java
index 6e15a20d8..d08402195 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/service/InboundMeasurementService.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/service/InboundMeasurementService.java
@@ -20,6 +20,7 @@ import com.baiyue.firstleg.entity.InboundWeightRevisionEntity;
 import com.baiyue.firstleg.entity.MeasureReviewRecordEntity;
 import com.baiyue.firstleg.repository.InboundMeasurementRepository;
 import com.baiyue.firstleg.repository.InboundPalletAllocationRepository;
+import com.baiyue.firstleg.repository.FbaPricingRepository;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.util.StringUtils;
@@ -61,6 +62,8 @@ public class InboundMeasurementService {
     @Resource
     private MeasurementBatchService batchService;
     @Resource
+    private FbaPricingRepository pricingRepository;
+    @Resource
     private FbaMasterDataService fbaMasterDataService;
     @Resource
     private OrderCargoClient orderCargoClient;
@@ -162,6 +165,40 @@ public class InboundMeasurementService {
         return new InboundMeasurementResponses.DraftSaved(saved.getId(), saved.getVersion(), saved.getStatus());
     }
 
+    @Transactional
+    public InboundMeasurementResponses.CalculationStrategyUpdated updateCalculationStrategy(
+        long tenantId, long inboundId,
+        InboundMeasurementRequests.UpdateCalculationStrategyRequest request) {
+        InboundOrderEntity inbound = repository.lockInbound(tenantId, inboundId);
+        if (inbound == null) throw new BizException(ResultCode.NOT_FOUND, "入库单不存在");
+        var currentFee = pricingRepository.findLatestFeeForUpdate(tenantId, inboundId);
+        boolean customerConfirmed = currentFee != null && currentFee.getCustomerConfirmedAt() != null;
+        boolean loadingCompleted = Set.of("LOADED", "DELIVERED").contains(inbound.getProcessStatus());
+        if (customerConfirmed && loadingCompleted) {
+            throw new BizException(ResultCode.CONFLICT,
+                "客户已确认且该票已装柜完成，不能修改箱规计算规则");
+        }
+        if ("MULTIPLY".equals(request.coefficientMode()) && request.chargeRuleId() == null) {
+            throw new BizException(ResultCode.VALIDATION_FAILED, "箱规系数模式必须选择计费规则");
+        }
+        InboundMeasurementEntity measurement = repository.lockMeasurement(
+            tenantId, inboundId, request.measurementId());
+        if (measurement == null) throw new BizException(ResultCode.NOT_FOUND, "测量批次不存在");
+        requireVersion(request.version(), measurement.getVersion());
+        List<InboundMeasurementItemEntity> items = repository.listItems(tenantId, measurement.getId());
+        batchService.recalculateStrategy(tenantId, measurement, items,
+            request.coefficientMode(), request.chargeRuleId());
+        measurement.setUpdatedAt(LocalDateTime.now());
+        if (!repository.updateMeasurement(measurement)) throw concurrentModification();
+        inbound.setActualVolumeCbm(measurement.getTotalVolumeCbm());
+        inbound.setVolumeWeightKg(measurement.getVolumeWeightKg());
+        if (!repository.updateInbound(inbound)) throw concurrentModification();
+        Long appliedRuleId = "MULTIPLY".equals(request.coefficientMode()) ? request.chargeRuleId() : null;
+        return new InboundMeasurementResponses.CalculationStrategyUpdated(
+            measurement.getId(), measurement.getVersion(), measurement.getStatus(),
+            request.coefficientMode(), appliedRuleId);
+    }
+
     @Transactional
     public InboundMeasurementResponses.MeasurementSubmitted submit(
         long tenantId, long inboundId, long operatorId,
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/service/MeasurementBatchService.java b/firstleg/src/main/java/com/baiyue/firstleg/service/MeasurementBatchService.java
index b2345e2b5..2dd2ef2b5 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/service/MeasurementBatchService.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/service/MeasurementBatchService.java
@@ -93,6 +93,49 @@ public class MeasurementBatchService {
         return measurement;
     }
 
+    void recalculateStrategy(long tenantId, InboundMeasurementEntity measurement,
+                             List<InboundMeasurementItemEntity> existingItems,
+                             String coefficientMode, Long chargeRuleId) {
+        if (existingItems.isEmpty()) {
+            throw new BizException(ResultCode.CONFLICT, "当前测量批次没有可重算的明细");
+        }
+        MeasurementBatchCommand command = new MeasurementBatchCommand(
+            tenantId, measurement.getInboundId(), measurement.getId(), measurement.getVersion(),
+            measurement.getSourceType(), measurement.getSourceCode(), measurement.getExternalEventNo(),
+            measurement.getDeviceCode(), measurement.getWarehouseCode(), measurement.getMeasuredAt(),
+            measurement.getRawPayloadJson(), measurement.getOriginalDocumentNo(),
+            measurement.getOriginalGrossWeightKg(), measurement.getOriginalVolumeCbm(),
+            measurement.getActualGoodsName(), measurement.getCreatedBy(),
+            existingItems.stream().map(item -> new MeasurementBatchCommand.Item(
+                item.getInboundDetailId(), item.getItemNo(), item.getBoxSpecification(), item.getPackageCount(),
+                item.getLengthCm(), item.getWidthCm(), item.getHeightCm(), null, item.getSourceImageFileId(),
+                item.getOverLimitWarning(), item.getManualOuterLengthCm(), item.getManualOuterWidthCm(),
+                item.getManualOuterHeightCm(), chargeRuleId, coefficientMode, item.getRemark())).toList());
+        List<InboundMeasurementItemEntity> recalculated = calculateItems(
+            command, dimensionWeighting.load(tenantId));
+        for (int index = 0; index < existingItems.size(); index++) {
+            InboundMeasurementItemEntity target = existingItems.get(index);
+            InboundMeasurementItemEntity source = recalculated.get(index);
+            target.setGirthCm(source.getGirthCm());
+            target.setUnitVolumeCbm(source.getUnitVolumeCbm());
+            target.setVolumeRawCbm(source.getVolumeRawCbm());
+            target.setVolumeCbm(source.getVolumeCbm());
+            target.setTotalVolumeCbm(source.getTotalVolumeCbm());
+            target.setVolumeWeightKg(source.getVolumeWeightKg());
+            target.setChargeRuleId(source.getChargeRuleId());
+            target.setCoefficientMode(source.getCoefficientMode());
+            target.setCalculationRuleVersion(source.getCalculationRuleVersion());
+            target.setOuterLengthCm(source.getOuterLengthCm());
+            target.setOuterWidthCm(source.getOuterWidthCm());
+            target.setOuterHeightCm(source.getOuterHeightCm());
+            target.setUpdatedAt(LocalDateTime.now());
+            if (!repository.updateItem(target)) {
+                throw concurrentModification();
+            }
+        }
+        applyTotals(measurement, existingItems);
+    }
+
     /**
      * 人工补录会整批替换可编辑测量项，但不能抹掉同一项已冻结的扫码身份与设备取证。
      * 只按入库货物明细和明细号精确匹配，避免把一个箱码猜测性地复制给其他测量项。
diff --git a/firstleg/src/main/resources/openapi/firstleg-v1.yaml b/firstleg/src/main/resources/openapi/firstleg-v1.yaml
index fcf2441e8..39b21b216 100644
--- a/firstleg/src/main/resources/openapi/firstleg-v1.yaml
+++ b/firstleg/src/main/resources/openapi/firstleg-v1.yaml
@@ -964,6 +964,24 @@ paths:
       responses:
         '200': {description: 成功或业务失败，按响应体 code 判断}
         '403': {description: 无测量编辑权限}
+  /api/platform/v1/first-leg/inbounds/{inboundId}/measurement/calculation-strategy:
+    put:
+      summary: 更新箱规计算规则
+      description: >-
+        独立更新当前测量批次全部明细的箱规计算规则并重算体积，不覆盖整批测量数据，
+        不改变测量提交或审核状态。客户未确认或该票尚未装柜完成时均可修改；
+        仅当客户已确认费用且该票已装柜完成时冻结。
+      parameters:
+        - {name: tenantId, in: query, required: true, schema: {type: string, pattern: '^[1-9][0-9]*$'}}
+        - {name: inboundId, in: path, required: true, schema: {type: string, pattern: '^[1-9][0-9]*$'}}
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema: {$ref: '#/components/schemas/InboundMeasurementCalculationStrategyRequest'}
+      responses:
+        '200': {description: 成功或业务失败，按响应体 code 判断}
+        '403': {description: 无测量编辑权限}
   /api/platform/v1/first-leg/inbounds/{inboundId}/measurement/carton-scans:
     post:
       summary: 平台模拟单箱设备扫描
@@ -1932,6 +1950,15 @@ components:
           minItems: 1
           maxItems: 500
           items: {$ref: '#/components/schemas/InboundMeasurementItemRequest'}
+    InboundMeasurementCalculationStrategyRequest:
+      type: object
+      required: [measurementId, version, coefficientMode]
+      additionalProperties: false
+      properties:
+        measurementId: {type: string, pattern: '^[1-9][0-9]*$'}
+        version: {type: integer, minimum: 0}
+        coefficientMode: {type: string, enum: [ACTUAL, ADD, MULTIPLY]}
+        chargeRuleId: {type: string, pattern: '^[1-9][0-9]*$', nullable: true, description: MULTIPLY 模式必填}
     InboundMeasurementItemRequest:
       type: object
       required: [inboundDetailId, itemNo, boxSpecification, packageCount, lengthCm, widthCm, heightCm]
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/controller/InboundMeasurementEvidenceOpenApiContractTest.java b/firstleg/src/test/java/com/baiyue/firstleg/controller/InboundMeasurementEvidenceOpenApiContractTest.java
index b033f0119..b1a2b50db 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/controller/InboundMeasurementEvidenceOpenApiContractTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/controller/InboundMeasurementEvidenceOpenApiContractTest.java
@@ -61,6 +61,13 @@ class InboundMeasurementEvidenceOpenApiContractTest {
         assertThat(properties(schemas, "InboundMeasurementItemRequest")).containsKeys(
             "inboundDetailId", "itemNo", "boxSpecification", "packageCount", "lengthCm",
             "widthCm", "heightCm", "intelligentImageFileId", "remark");
+        String strategyPath = "/api/platform/v1/first-leg/inbounds/{inboundId}/measurement/calculation-strategy";
+        assertThat(paths).containsKey(strategyPath);
+        Map<String, Object> strategyOperation = stringMap(stringMap(paths.get(strategyPath)).get("put"));
+        assertThat(strategyOperation.get("description").toString())
+            .contains("不覆盖整批测量数据", "不改变测量提交或审核状态", "客户已确认费用且该票已装柜完成");
+        assertThat(properties(schemas, "InboundMeasurementCalculationStrategyRequest"))
+            .containsKeys("measurementId", "version", "coefficientMode", "chargeRuleId");
 
         Map<String, Object> itemProperties = properties(schemas, "InboundMeasurementItem");
         assertThat(itemProperties).containsKeys(
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/loading/service/LoadingDeliveryServiceTest.java b/firstleg/src/test/java/com/baiyue/firstleg/loading/service/LoadingDeliveryServiceTest.java
index 2118e71a4..49977142c 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/loading/service/LoadingDeliveryServiceTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/loading/service/LoadingDeliveryServiceTest.java
@@ -6,7 +6,6 @@ import com.baiyue.firstleg.loading.repository.LoadingRepository;
 import com.baiyue.firstleg.mapper.InboundStatusHistoryMapper;
 import com.baiyue.firstleg.mapper.LoadingPickItemMapper.InboundProgress;
 import com.baiyue.firstleg.repository.LoadingPickRepository;
-import com.baiyue.firstleg.service.FbaPricingService;
 import com.baiyue.firstleg.service.InboundHoldGuard;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import jakarta.annotation.Resource;
@@ -29,7 +28,6 @@ class LoadingDeliveryServiceTest {
     @MockBean LoadingCompletionGateService completionGate;
     @MockBean InboundStatusHistoryMapper histories;
     @MockBean CabinetLoadingEvidenceService cabinetEvidence;
-    @MockBean FbaPricingService pricingService;
     @MockBean ObjectMapper objectMapper;
     @MockBean InboundHoldGuard inboundHoldGuard;
     @Resource LoadingDeliveryService service;
@@ -50,7 +48,6 @@ class LoadingDeliveryServiceTest {
             new com.baiyue.firstleg.loading.dto.LoadingRequests.CompleteLoadingRequest(3, "done"));
 
         verify(cabinetEvidence).requireComplete(99L);
-        verify(pricingService).autoConfirmAfterLoading(10L, 20L);
     }
 
     @Test
@@ -91,7 +88,6 @@ class LoadingDeliveryServiceTest {
 
         verify(repository).findInboundForUpdate(10L, 21L);
         verify(repository).completeLoadedChild(10L, 20L, 9L, 9);
-        verify(pricingService).autoConfirmAfterLoading(10L, 21L);
     }
 
     @Test
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/service/FbaPricingServiceTest.java b/firstleg/src/test/java/com/baiyue/firstleg/service/FbaPricingServiceTest.java
index 407eded52..d1f8e72cd 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/service/FbaPricingServiceTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/service/FbaPricingServiceTest.java
@@ -77,48 +77,6 @@ class FbaPricingServiceTest {
         verify(repository, never()).findLatestFee(TENANT, INBOUND);
     }
 
-    @Test
-    @DisplayName("装柜完成后系统自动确认客户未确认的已发送费用")
-    void automaticallyConfirmsSentFeeAfterLoading() {
-        InboundFeeEntity sent = savedFee("SENT");
-        when(repository.findLatestFeeForUpdate(TENANT, INBOUND)).thenReturn(sent);
-        when(repository.confirmFeeByCustomer(TENANT, 501L, 1, 0L,
-            "装柜完成自动确认", NOW)).thenReturn(1);
-
-        service.autoConfirmAfterLoading(TENANT, INBOUND);
-
-        verify(repository).confirmFeeByCustomer(TENANT, 501L, 1, 0L,
-            "装柜完成自动确认", NOW);
-    }
-
-    @Test
-    @DisplayName("客户已经确认时装柜完成不覆盖原确认信息")
-    void keepsExistingCustomerConfirmationAfterLoading() {
-        InboundFeeEntity sent = savedFee("SENT");
-        sent.setCustomerConfirmedBy(88L);
-        sent.setCustomerConfirmedByName("客户成员");
-        sent.setCustomerConfirmedAt(NOW.minusHours(1));
-        when(repository.findLatestFeeForUpdate(TENANT, INBOUND)).thenReturn(sent);
-
-        service.autoConfirmAfterLoading(TENANT, INBOUND);
-
-        verify(repository, never()).confirmFeeByCustomer(anyLong(), anyLong(), anyInt(),
-            anyLong(), anyString(), any());
-    }
-
-    @Test
-    @DisplayName("没有已发送费用时装柜完成不受影响")
-    void ignoresMissingOrUnsentFeeAfterLoading() {
-        when(repository.findLatestFeeForUpdate(TENANT, INBOUND))
-            .thenReturn(null, savedFee("CONFIRMED"));
-
-        service.autoConfirmAfterLoading(TENANT, INBOUND);
-        service.autoConfirmAfterLoading(TENANT, INBOUND);
-
-        verify(repository, never()).confirmFeeByCustomer(anyLong(), anyLong(), anyInt(),
-            anyLong(), anyString(), any());
-    }
-
     @Test
     @DisplayName("包税KG按生效价格表计费且不依赖客户规则或承运商")
     void calculatesTaxIncludedKgWithoutCustomerRuleOrCarrier() {
@@ -289,17 +247,27 @@ class FbaPricingServiceTest {
     }
 
     @Test
-    @DisplayName("装柜完成后禁止确认费用")
-    void rejectsConfirmAfterLoadingCompleted() {
+    @DisplayName("装柜完成但客户未确认时仍允许确认新费用版本")
+    void confirmsNewFeeVersionAfterLoadingCompleted() {
         InboundPricingEntity inbound = inbound("10.000", "1.0000");
         inbound.setProcessStatus("LOADED");
         inbound.setFeeStatus("CALCULATED");
+        InboundFeeEntity fee = savedFee("CALCULATED");
         when(repository.findInbound(TENANT, INBOUND)).thenReturn(inbound);
+        when(repository.findLatestFee(TENANT, INBOUND)).thenReturn(fee);
+        when(repository.findIdempotency(TENANT, OPERATOR, "FEE_CONFIRM", "confirm-loaded"))
+            .thenReturn(null);
+        doAnswer(invocation -> { ((InboundPricingIdempotencyEntity) invocation.getArgument(0)).setId(899L); return null; })
+            .when(repository).insertIdempotency(any());
+        when(repository.confirmFee(TENANT, 501L, OPERATOR, NOW)).thenReturn(1);
+        when(repository.markInboundConfirmed(TENANT, INBOUND)).thenReturn(1);
+        when(repository.completeIdempotency(any(), eq(501L), eq(NOW))).thenReturn(1);
+        when(repository.findFee(TENANT, 501L)).thenReturn(fee);
 
-        assertThatThrownBy(() -> service.confirm(TENANT, OPERATOR, INBOUND, "confirm-loaded"))
-            .isInstanceOf(BizException.class)
-            .hasMessageContaining("装柜流程");
-        verify(repository, never()).markInboundConfirmed(TENANT, INBOUND);
+        FeeSnapshotResponse response = service.confirm(TENANT, OPERATOR, INBOUND, "confirm-loaded");
+
+        assertThat(response.nextProcessStatus()).isEqualTo("LOADED");
+        verify(repository).markInboundConfirmed(TENANT, INBOUND);
     }
 
     @Test
@@ -335,11 +303,11 @@ class FbaPricingServiceTest {
     }
 
     @Test
-    @DisplayName("客户未确认时待装柜订单可重新计算并替换已发送费用")
+    @DisplayName("客户未确认时装柜完成订单仍可重新计算并替换已发送费用")
     void recalculatesSentFeeBeforeCustomerConfirmation() {
         readyRepository();
         InboundPricingEntity inbound = inbound("10", "1");
-        inbound.setProcessStatus("WAIT_PALLET");
+        inbound.setProcessStatus("LOADED");
         inbound.setFeeStatus("SENT");
         InboundFeeEntity sent = savedFee("SENT");
         when(repository.findInbound(TENANT, INBOUND)).thenReturn(inbound);
@@ -354,18 +322,18 @@ class FbaPricingServiceTest {
 
         assertThat(response.feeVersion()).isEqualTo(2);
         assertThat(response.feeStatus()).isEqualTo("CALCULATED");
-        assertThat(response.nextProcessStatus()).isEqualTo("WAIT_PALLET");
+        assertThat(response.nextProcessStatus()).isEqualTo("LOADED");
         verify(repository).supersedeCurrent(TENANT, 501L, "SENT");
-        verify(repository).markInboundCalculated(TENANT, INBOUND, "WAIT_PALLET", "CBM",
+        verify(repository).markInboundCalculated(TENANT, INBOUND, "LOADED", "CBM",
             new BigDecimal("1.0000"));
     }
 
     @Test
-    @DisplayName("客户已确认时拒绝重新计算已发送费用")
+    @DisplayName("客户已确认且装柜完成时拒绝重新计算已发送费用")
     void rejectsRecalculationAfterCustomerConfirmation() {
         readyRepository();
         InboundPricingEntity inbound = inbound("10", "1");
-        inbound.setProcessStatus("WAIT_PALLET");
+        inbound.setProcessStatus("LOADED");
         inbound.setFeeStatus("SENT");
         InboundFeeEntity sent = savedFee("SENT");
         sent.setCustomerConfirmedAt(NOW);
@@ -493,6 +461,7 @@ class FbaPricingServiceTest {
         inbound.setProcessStatus("WAIT_SPLIT");
         inbound.setFeeStatus("SENT");
         InboundFeeEntity current = savedFee("SENT");
+        current.setCustomerConfirmedAt(NOW.minusHours(1));
         AtomicReference<InboundFeeEntity> inserted = new AtomicReference<>();
         when(repository.findInbound(TENANT, INBOUND)).thenReturn(inbound);
         when(repository.findLatestFee(TENANT, INBOUND)).thenReturn(current);
@@ -501,7 +470,7 @@ class FbaPricingServiceTest {
             .when(repository).insertIdempotency(any());
         when(repository.nextFeeVersion(TENANT, INBOUND)).thenReturn(2);
         when(repository.supersedeCurrent(TENANT, 501L, "SENT")).thenReturn(1);
-        when(repository.markInboundAdjusted(eq(TENANT), eq(INBOUND), eq("SENT"), eq("KG"), any()))
+        when(repository.markInboundAdjusted(eq(TENANT), eq(INBOUND), eq("WAIT_SPLIT"), eq("SENT"), eq("KG"), any()))
             .thenReturn(1);
         doAnswer(invocation -> {
             InboundFeeEntity fee = invocation.getArgument(0);
@@ -561,10 +530,10 @@ class FbaPricingServiceTest {
     }
 
     @Test
-    @DisplayName("客户已确认费用时拒绝平台再次修改")
+    @DisplayName("客户已确认且装柜完成时拒绝平台再次修改")
     void rejectsAdjustmentAfterCustomerConfirmation() {
         InboundPricingEntity inbound = inbound("10", "1");
-        inbound.setProcessStatus("WAIT_SPLIT");
+        inbound.setProcessStatus("LOADED");
         InboundFeeEntity current = savedFee("SENT");
         current.setCustomerConfirmedAt(NOW);
         when(repository.findInbound(TENANT, INBOUND)).thenReturn(inbound);
@@ -596,7 +565,7 @@ class FbaPricingServiceTest {
             .when(repository).insertIdempotency(any());
         when(repository.nextFeeVersion(TENANT, INBOUND)).thenReturn(2);
         when(repository.supersedeCurrent(TENANT, 501L, "CALCULATED")).thenReturn(1);
-        when(repository.markInboundAdjusted(eq(TENANT), eq(INBOUND), eq("CALCULATED"), eq("KG"), any()))
+        when(repository.markInboundAdjusted(eq(TENANT), eq(INBOUND), eq("WAIT_SPLIT"), eq("CALCULATED"), eq("KG"), any()))
             .thenReturn(1);
         doAnswer(invocation -> {
             InboundFeeEntity fee = invocation.getArgument(0);
@@ -655,7 +624,7 @@ class FbaPricingServiceTest {
             .when(repository).insertIdempotency(any());
         when(repository.nextFeeVersion(TENANT, INBOUND)).thenReturn(2);
         when(repository.supersedeCurrent(TENANT, 501L, "CALCULATED")).thenReturn(1);
-        when(repository.markInboundAdjusted(eq(TENANT), eq(INBOUND), eq("CALCULATED"), eq("KG"), any()))
+        when(repository.markInboundAdjusted(eq(TENANT), eq(INBOUND), eq("WAIT_SPLIT"), eq("CALCULATED"), eq("KG"), any()))
             .thenReturn(1);
         doAnswer(invocation -> { ((InboundFeeEntity) invocation.getArgument(0)).setId(504L); return null; })
             .when(repository).insertFee(any());
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/service/InboundMeasurementServiceTest.java b/firstleg/src/test/java/com/baiyue/firstleg/service/InboundMeasurementServiceTest.java
index 65b4a70dd..0036f2af1 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/service/InboundMeasurementServiceTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/service/InboundMeasurementServiceTest.java
@@ -11,12 +11,14 @@ import com.baiyue.firstleg.dto.MeasurementBatchCommand;
 import com.baiyue.firstleg.dto.InboundMeasurementResponses;
 import com.baiyue.firstleg.entity.InboundMeasurementEntity;
 import com.baiyue.firstleg.entity.InboundMeasurementItemEntity;
+import com.baiyue.firstleg.entity.InboundFeeEntity;
 import com.baiyue.firstleg.entity.InboundOrderEntity;
 import com.baiyue.firstleg.entity.InboundPalletAllocationEntity;
 import com.baiyue.firstleg.entity.InboundWeightResultEntity;
 import com.baiyue.firstleg.entity.InboundWeightRevisionEntity;
 import com.baiyue.firstleg.repository.InboundMeasurementRepository;
 import com.baiyue.firstleg.repository.InboundPalletAllocationRepository;
+import com.baiyue.firstleg.repository.FbaPricingRepository;
 import jakarta.annotation.Resource;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
@@ -57,6 +59,7 @@ import static org.mockito.Mockito.when;
 class InboundMeasurementServiceTest {
     @MockBean private InboundMeasurementRepository repository;
     @MockBean private MeasurementBatchService batchService;
+    @MockBean private FbaPricingRepository pricingRepository;
     @MockBean private FbaMasterDataService fbaMasterDataService;
     @MockBean private OrderCargoClient orderCargoClient;
     @MockBean private MeasurementImageClient imageClient;
@@ -90,6 +93,52 @@ class InboundMeasurementServiceTest {
         verify(repository, never()).listWeights(anyLong(), anyLong());
     }
 
+    @Test
+    void updatesSubmittedCalculationStrategyWithoutReplacingMeasurementBatch() {
+        InboundOrderEntity inbound = inbound("MEASURE_PENDING");
+        InboundMeasurementEntity measurement = new InboundMeasurementEntity();
+        measurement.setId(30L);
+        measurement.setTenantId(1L);
+        measurement.setInboundId(10L);
+        measurement.setStatus("SUBMITTED");
+        measurement.setVersion(5);
+        measurement.setTotalVolumeCbm(new BigDecimal("2.5000"));
+        measurement.setVolumeWeightKg(new BigDecimal("417.500"));
+        InboundMeasurementItemEntity item = new InboundMeasurementItemEntity();
+        item.setId(31L);
+        item.setTenantId(1L);
+        item.setMeasurementId(30L);
+        when(repository.lockInbound(1L, 10L)).thenReturn(inbound);
+        when(repository.lockMeasurement(1L, 10L, 30L)).thenReturn(measurement);
+        when(repository.listItems(1L, 30L)).thenReturn(List.of(item));
+        when(repository.updateMeasurement(measurement)).thenReturn(true);
+        when(repository.updateInbound(inbound)).thenReturn(true);
+
+        var response = service.updateCalculationStrategy(1L, 10L,
+            new InboundMeasurementRequests.UpdateCalculationStrategyRequest(30L, 5, "ADD", null));
+
+        assertThat(response.status()).isEqualTo("SUBMITTED");
+        verify(batchService).recalculateStrategy(1L, measurement, List.of(item), "ADD", null);
+        verify(repository, never()).replaceItems(anyLong(), anyLong(), any());
+        assertThat(inbound.getActualVolumeCbm()).isEqualByComparingTo("2.5000");
+    }
+
+    @Test
+    void locksCalculationStrategyOnlyAfterCustomerConfirmationAndLoadingCompletion() {
+        InboundOrderEntity inbound = inbound("LOADED");
+        InboundFeeEntity fee = new InboundFeeEntity();
+        fee.setCustomerConfirmedAt(LocalDateTime.now());
+        when(repository.lockInbound(1L, 10L)).thenReturn(inbound);
+        when(pricingRepository.findLatestFeeForUpdate(1L, 10L)).thenReturn(fee);
+
+        assertThatThrownBy(() -> service.updateCalculationStrategy(1L, 10L,
+            new InboundMeasurementRequests.UpdateCalculationStrategyRequest(30L, 5, "ACTUAL", null)))
+            .isInstanceOf(BizException.class)
+            .hasMessageContaining("客户已确认且该票已装柜完成");
+
+        verify(repository, never()).lockMeasurement(anyLong(), anyLong(), anyLong());
+    }
+
     @Test
     void correctingWeightKeepsOcrOriginalAndWritesImmutableRevision() {
         InboundOrderEntity inbound = inbound("MEASURING");
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/service/MeasurementBatchServiceTest.java b/firstleg/src/test/java/com/baiyue/firstleg/service/MeasurementBatchServiceTest.java
index 4ba98e21f..6fd4e1f37 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/service/MeasurementBatchServiceTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/service/MeasurementBatchServiceTest.java
@@ -26,6 +26,7 @@ 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.Mockito.mock;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
@@ -97,6 +98,41 @@ class MeasurementBatchServiceTest {
         assertThat(items.getValue().get(0).getInboundDetailId()).isEqualTo(80001L);
     }
 
+    @Test
+    void recalculatesSubmittedItemsInPlaceWithoutChangingTheirIdentityOrStatus() {
+        InboundMeasurementEntity measurement = new InboundMeasurementEntity();
+        measurement.setId(100L);
+        measurement.setTenantId(1L);
+        measurement.setInboundId(10L);
+        measurement.setSourceType("MANUAL");
+        measurement.setStatus("SUBMITTED");
+        measurement.setVersion(4);
+        measurement.setCreatedBy(9L);
+        InboundMeasurementItemEntity existing = new InboundMeasurementItemEntity();
+        existing.setId(200L);
+        existing.setTenantId(1L);
+        existing.setMeasurementId(100L);
+        existing.setInboundDetailId(80001L);
+        existing.setBoxCode("RK-001#1");
+        existing.setItemNo("001");
+        existing.setBoxSpecification("40x30x20cm");
+        existing.setPackageCount(2);
+        existing.setLengthCm(new BigDecimal("40"));
+        existing.setWidthCm(new BigDecimal("30"));
+        existing.setHeightCm(new BigDecimal("20"));
+        when(repository.updateItem(existing)).thenReturn(true);
+
+        service.recalculateStrategy(1L, measurement, List.of(existing), "ACTUAL", null);
+
+        assertThat(existing.getId()).isEqualTo(200L);
+        assertThat(existing.getBoxCode()).isEqualTo("RK-001#1");
+        assertThat(existing.getOuterLengthCm()).isEqualByComparingTo("40.000");
+        assertThat(measurement.getStatus()).isEqualTo("SUBMITTED");
+        assertThat(measurement.getTotalVolumeCbm()).isEqualByComparingTo("0.0480");
+        verify(repository).updateItem(existing);
+        verify(repository, never()).replaceItems(anyLong(), anyLong(), any());
+    }
+
     @Test
     void automaticallyAppliesCustomerDefaultRuleToActualMeasurement() {
         CustomerChargeRuleEntity rule = new CustomerChargeRuleEntity();