diff --git a/bms-back/bms-system/src/main/java/com/bms/price/service/impl/PrcOrderBillServiceImpl.java b/bms-back/bms-system/src/main/java/com/bms/price/service/impl/PrcOrderBillServiceImpl.java
index b534786e..1de8a0c0 100644
--- a/bms-back/bms-system/src/main/java/com/bms/price/service/impl/PrcOrderBillServiceImpl.java
+++ b/bms-back/bms-system/src/main/java/com/bms/price/service/impl/PrcOrderBillServiceImpl.java
@@ -1014,11 +1014,18 @@ public class PrcOrderBillServiceImpl implements IPrcOrderBillService
     private void saveCreditEsLog(PrcOrderBill bill, CreditUsageCommand cmd, String action, boolean success,
         String errorMessage)
     {
-        if (billSearchStore == null || bill == null || StringUtils.isEmpty(bill.getOrderNo()))
+        if (billSearchStore == null || bill == null)
         {
             return;
         }
+        if (StringUtils.isEmpty(bill.getTransferNo()) && StringUtils.isEmpty(bill.getOrderNo()))
+        {
+            return;
+        }
+        // bizId: prefer transferNo, fallback orderNo (same as BILL)
+        String bizId = EsBizLogSupport.billBizId(bill.getTransferNo(), bill.getOrderNo());
         JSONObject req = new JSONObject();
+        req.put("transferNo", bill.getTransferNo());
         req.put("orderNo", bill.getOrderNo());
         req.put("billId", bill.getBillId());
         req.put("customerId", bill.getCustomerId());
@@ -1048,7 +1055,7 @@ public class PrcOrderBillServiceImpl implements IPrcOrderBillService
         }
         String status = success ? EsBizLogSupport.STATUS_SUCCESS : EsBizLogSupport.STATUS_FAIL;
         String err = success ? null : EsBizLogSupport.cut(errorMessage);
-        billSearchStore.save(EsLogType.CREDIT, bill.getOrderNo(), req.toJSONString(), resp.toJSONString(), status, err);
+        billSearchStore.save(EsLogType.CREDIT, bizId, req.toJSONString(), resp.toJSONString(), status, err);
     }
 
     /**