diff --git a/so/src/private/nccloud/api/impl/so/m30/APISaleOrderMaitainImpl.java b/so/src/private/nccloud/api/impl/so/m30/APISaleOrderMaitainImpl.java
index 30a7086..ff19762 100644
--- a/so/src/private/nccloud/api/impl/so/m30/APISaleOrderMaitainImpl.java
+++ b/so/src/private/nccloud/api/impl/so/m30/APISaleOrderMaitainImpl.java
@@ -722,6 +722,7 @@ public class APISaleOrderMaitainImpl implements IAPISaleOrderMaitain {
                     targetBVO.setVbdef19(sourceBVO.getVbdef19());  // 计划开工日期
                     targetBVO.setVbdef20(sourceBVO.getVbdef20());  // 计划完工日期
                     targetBVO.setVbdef14(sourceBVO.getVbdef14());  // 合同销售订单变更明细id
+                    targetBVO.setCrowno(sourceBVO.getCrowno());  // 行号
 
                 }