diff --git a/mhd_oms/src/main/java/com/mhd/oms/domain/reserveStockInOrder/service/ReserveStockInOrderDomainService.java b/mhd_oms/src/main/java/com/mhd/oms/domain/reserveStockInOrder/service/ReserveStockInOrderDomainService.java
index 26a352e07..c69b34725 100644
--- a/mhd_oms/src/main/java/com/mhd/oms/domain/reserveStockInOrder/service/ReserveStockInOrderDomainService.java
+++ b/mhd_oms/src/main/java/com/mhd/oms/domain/reserveStockInOrder/service/ReserveStockInOrderDomainService.java
@@ -474,13 +474,18 @@ public class ReserveStockInOrderDomainService {
         Long shipperId = reservationStockInOrder.getShipperId();
         String jsbz = reservationStockInOrderMapper.getJsbz(shipperId);
         reservationStockInOrder.setSettlementCurrency(jsbz);
-        String inOrderNumber = reservationStockInOrder.getInOrderNumber();
-        List<ReserveInMaterialDetail> materialDetailList = materialDetailService.list(new QueryWrapper<ReserveInMaterialDetail>().lambda().eq(ReserveInMaterialDetail::getInOrderNumber, inOrderNumber));
+        String oldInOrderNumber = reservationStockInOrder.getInOrderNumber();
+        // 生成新业务单号，防止与已生成的入库业务单号重复
+        String newOrderNumber = reservationStockInOrderDomainService.generateReserveOrderNumber();
+        reservationStockInOrder.setInOrderNumber(newOrderNumber);
+        reservationStockInOrder.setBusinessOrderNo(newOrderNumber);
+        List<ReserveInMaterialDetail> materialDetailList = materialDetailService.list(new QueryWrapper<ReserveInMaterialDetail>().lambda().eq(ReserveInMaterialDetail::getInOrderNumber, oldInOrderNumber));
         List<ReservationInMaterialDetail> inMaterialDetailList  = new ArrayList<>();
         int index = 1;
         for (ReserveInMaterialDetail reserveInMaterialDetail : materialDetailList) {
             ReservationInMaterialDetail  reservationInMaterialDetail = new ReservationInMaterialDetail();
             BeanUtils.copyProperties(reserveInMaterialDetail, reservationInMaterialDetail,"materialDetailId");
+            reservationInMaterialDetail.setInOrderNumber(newOrderNumber); // 使用新单号保持与主表关联
             reservationInMaterialDetail.setQuantity(reserveInMaterialDetail.getReserveQuantity());
             String lot = generateDateSerialNumber();
             lot = lot+"-"+index;
@@ -491,10 +496,6 @@ public class ReserveStockInOrderDomainService {
         }
         BigDecimal quantity =  materialDetailList.stream().map(ReserveInMaterialDetail::getReserveQuantity).filter(Objects::nonNull).reduce(BigDecimal.ZERO, BigDecimal::add);
         reservationStockInOrder.setQuantity(quantity);
-        // 生成业务单号，防止与已生成的入库业务单号重复
-        String newOrderNumber = reservationStockInOrderDomainService.generateReserveOrderNumber();
-        reservationStockInOrder.setInOrderNumber(newOrderNumber);
-        reservationStockInOrder.setBusinessOrderNo(newOrderNumber);
         reservationStockInOrderService.save(reservationStockInOrder);
         reservationInMaterialDetailService.saveBatch(inMaterialDetailList);
         return update;
diff --git a/mhd_oms/src/main/java/com/mhd/oms/domain/reserveStockOutOrder/service/ReserveStockOutOrderDomainService.java b/mhd_oms/src/main/java/com/mhd/oms/domain/reserveStockOutOrder/service/ReserveStockOutOrderDomainService.java
index 9fe704cb1..cb75be175 100644
--- a/mhd_oms/src/main/java/com/mhd/oms/domain/reserveStockOutOrder/service/ReserveStockOutOrderDomainService.java
+++ b/mhd_oms/src/main/java/com/mhd/oms/domain/reserveStockOutOrder/service/ReserveStockOutOrderDomainService.java
@@ -306,18 +306,20 @@ public class ReserveStockOutOrderDomainService {
         Long shipperId = reservationStockOutOrder.getShipperId();
         String jsbz = reservationStockInOrderMapper.getJsbz(shipperId);
         reservationStockOutOrder.setSettlementCurrency(jsbz);
+        // 保留旧单号，用于查询源明细数据
+        String oldOutOrderNumber = reservationStockOutOrder.getOutOrderNumber();
         // 生成出库业务单号，防止与已生成的出库业务单号重复
         String newOrderNumber = reservationStockOutOrderDomainService.generateReserveOrderNumber();
         reservationStockOutOrder.setOutOrderNumber(newOrderNumber);
         reservationStockOutOrder.setBusinessOrderNo(newOrderNumber);
         reservationStockOutOrderService.save(reservationStockOutOrder);
-        String outOrderNumber = reservationStockOutOrder.getOutOrderNumber();
-        List<ReserveOutMaterialDetail> materialDetailList = outMaterialDetailService.list(new QueryWrapper<ReserveOutMaterialDetail>().lambda().eq(ReserveOutMaterialDetail::getOutOrderNumber, outOrderNumber));
+        List<ReserveOutMaterialDetail> materialDetailList = outMaterialDetailService.list(new QueryWrapper<ReserveOutMaterialDetail>().lambda().eq(ReserveOutMaterialDetail::getOutOrderNumber, oldOutOrderNumber));
         List<ReservationOutMaterialDetail> inMaterialDetailList  = new ArrayList<>();
         int index = 1;
         for (ReserveOutMaterialDetail reserveOutMaterialDetail   : materialDetailList) {
             ReservationOutMaterialDetail reservationOutMaterialDetail = new ReservationOutMaterialDetail();
             BeanUtils.copyProperties(reserveOutMaterialDetail, reservationOutMaterialDetail,"materialDetailId");
+            reservationOutMaterialDetail.setOutOrderNumber(newOrderNumber); // 使用新单号保持与主表关联
             String lot = generateDateSerialNumber();
             lot = lot+"-"+index;
             index++;