diff --git a/src/main/java/com/gaotao/modules/erp/service/impl/ErpInterfaceServiceImpl.java b/src/main/java/com/gaotao/modules/erp/service/impl/ErpInterfaceServiceImpl.java
index 0e09efc..2c2465e 100644
--- a/src/main/java/com/gaotao/modules/erp/service/impl/ErpInterfaceServiceImpl.java
+++ b/src/main/java/com/gaotao/modules/erp/service/impl/ErpInterfaceServiceImpl.java
@@ -246,7 +246,7 @@ public class ErpInterfaceServiceImpl implements ErpInterfaceService {
         Map<String, Object> requestBody = new LinkedHashMap<>();
         
         // 主表字段
-        requestBody.put("MESCCode", nullToEmpty(firstLog.getTransactionId()));
+        requestBody.put("MESCCode", firstLog.getOaOrderNo() + "-" + firstLog.getTransactionId());
         requestBody.put("KdType", getKdType(interfaceName));
         requestBody.put("DDate", formatDate(firstLog.getTransactionDate()));
         requestBody.put("CBusType", "");