diff --git a/mhd_wms/src/main/java/com/mhd/wms/domain/receiptMaterialDetail/repository/persistence/ReceiptMaterialDetailImpl.java b/mhd_wms/src/main/java/com/mhd/wms/domain/receiptMaterialDetail/repository/persistence/ReceiptMaterialDetailImpl.java
index 23c00a5e3..191d43ded 100644
--- a/mhd_wms/src/main/java/com/mhd/wms/domain/receiptMaterialDetail/repository/persistence/ReceiptMaterialDetailImpl.java
+++ b/mhd_wms/src/main/java/com/mhd/wms/domain/receiptMaterialDetail/repository/persistence/ReceiptMaterialDetailImpl.java
@@ -334,13 +334,8 @@ public class ReceiptMaterialDetailImpl extends ServiceImpl<ReceiptMaterialDetail
         List<MaterialMoreDetail> materialMoreDetailList = new ArrayList<>();
         List<InMaterialDetailSerialNumber> materialDetailSerialNumberList = new ArrayList<>();
         for (ReceiptMaterialDetailDO receiptMaterialDetailDO : receiptMaterialDetailDOList){
-            extractBatchAttributesToReceiptDetail(receiptMaterialDetailDO);
-            // 自动生成批次号并校验唯一性（包括子项）
+            // 批次号：默认取 Sheet Ref NO's（sheetRefNo），不再自动生成 PC 流水号（逻辑见 generateAndValidateBatchNumber）
             generateAndValidateBatchNumber(receiptMaterialDetailDO, shipperId);
-            // 当 materialMoreDetailList 为空时（如 PDA 未传），从 receiptMaterialDetailDO 的 batch_number、material_status_code 等字段构建，确保更多属性能保存并回显
-            if (CollectionUtils.isEmpty(receiptMaterialDetailDO.getMaterialMoreDetailList())) {
-                receiptMaterialDetailDO.setMaterialMoreDetailList(buildMaterialMoreDetailFromReceiptFields(receiptMaterialDetailDO));
-            }
             //更多属性
             materialMoreDetailList.addAll(genMaterialMoreDetail(receiptMaterialDetailDO));
             //序列号
@@ -355,8 +350,7 @@ public class ReceiptMaterialDetailImpl extends ServiceImpl<ReceiptMaterialDetail
             List<ReceiptMaterialDetail> receiptMaterialDetailChildList = new ArrayList<>();
             if (!CollectionUtils.isEmpty(receiptMaterialDetailDOChildList)){
                 for (ReceiptMaterialDetailDO receiptMaterialDetailDOChild : receiptMaterialDetailDOChildList){
-                    // 子项也需从批次属性提取净重、毛重、体积、面积等字段
-                    extractBatchAttributesToReceiptDetail(receiptMaterialDetailDOChild);
+                    // 子项批次属性已在 generateAndValidateBatchNumber 递归中提取
                     ReceiptMaterialDetail receiptMaterialDetailChild = new ReceiptMaterialDetail();
                     BeanUtils.copyProperties(receiptMaterialDetailDOChild, receiptMaterialDetailChild);
                     alignPersistedReceiptQuantityToCumulative(receiptMaterialDetailDOChild, receiptMaterialDetailChild);
@@ -1128,7 +1122,7 @@ public class ReceiptMaterialDetailImpl extends ServiceImpl<ReceiptMaterialDetail
     }
 
     /**
-     * @description 自动生成批次号并校验唯一性
+     * @description 批次号默认取 Sheet Ref NO's（sheetRefNo），并校验库存唯一性；不再使用 PC 流水号自动生成
      * @author Auto
      * @date 2026/1/28
      * @param receiptMaterialDetailDO 收货明细
@@ -1139,7 +1133,12 @@ public class ReceiptMaterialDetailImpl extends ServiceImpl<ReceiptMaterialDetail
         if (receiptMaterialDetailDO == null) {
             return;
         }
-        
+        // 与原先在 batchReceiptUpdate 中顺序一致：先补全更多属性列表，再从批次属性提取到明细字段（含 sheetRefNo）
+        if (CollectionUtils.isEmpty(receiptMaterialDetailDO.getMaterialMoreDetailList())) {
+            receiptMaterialDetailDO.setMaterialMoreDetailList(buildMaterialMoreDetailFromReceiptFields(receiptMaterialDetailDO));
+        }
+        extractBatchAttributesToReceiptDetail(receiptMaterialDetailDO);
+
         // 处理当前明细
         processBatchNumberForDetail(receiptMaterialDetailDO, shipperId);
         
@@ -1153,7 +1152,7 @@ public class ReceiptMaterialDetailImpl extends ServiceImpl<ReceiptMaterialDetail
     }
     
     /**
-     * @description 为单个收货明细生成批次号并校验唯一性
+     * @description 批次号为空时默认取 Sheet Ref NO's（sheetRefNo）；原 PC 流水号自动生成已停用
      * @author Auto
      * @date 2026/1/28
      * @param receiptMaterialDetailDO 收货明细
@@ -1168,13 +1167,22 @@ public class ReceiptMaterialDetailImpl extends ServiceImpl<ReceiptMaterialDetail
         Long materialBaseInfoId = receiptMaterialDetailDO.getMaterialBaseInfoId();
         String materialStatusCode = receiptMaterialDetailDO.getMaterialStatusCode();
         String batchNumber = receiptMaterialDetailDO.getBatchNumber();
-        
-        // 如果批次号为空，自动生成
+
+        // 批次号为空时默认取 Sheet Ref NO's（与批次属性「Sheet Ref NO's」/ 明细字段 sheetRefNo 一致）
         if (batchNumber == null || batchNumber.trim().isEmpty()) {
-            batchNumber = OrderSequence.getOrderCode("PC"); // PC = 批次号前缀
-            receiptMaterialDetailDO.setBatchNumber(batchNumber);
+            String sheetRef = receiptMaterialDetailDO.getSheetRefNo();
+            if (StringUtils.isNotBlank(sheetRef)) {
+                receiptMaterialDetailDO.setBatchNumber(sheetRef.trim());
+            }
         }
-        
+        // 原自动生成批次号（已按业务要求停用）
+        // if (batchNumber == null || batchNumber.trim().isEmpty()) {
+        //     batchNumber = OrderSequence.getOrderCode("PC"); // PC = 批次号前缀
+        //     receiptMaterialDetailDO.setBatchNumber(batchNumber);
+        // }
+
+        batchNumber = receiptMaterialDetailDO.getBatchNumber();
+
         // 校验批次号唯一性：货主+商品+库存属性值相同时，批次号不能重复
         if (shipperId != null && materialBaseInfoId != null && batchNumber != null && !batchNumber.trim().isEmpty()) {
             // 使用 LambdaQueryWrapper 查询库存表中是否存在相同的货主+商品+库存属性值+批次号的记录