diff --git a/lms/nladmin-system/src/main/java/org/nl/wms/st/outbill/service/impl/CheckOutBillServiceImpl.java b/lms/nladmin-system/src/main/java/org/nl/wms/st/outbill/service/impl/CheckOutBillServiceImpl.java
index 5e762fd0f..fe16ce6ec 100644
--- a/lms/nladmin-system/src/main/java/org/nl/wms/st/outbill/service/impl/CheckOutBillServiceImpl.java
+++ b/lms/nladmin-system/src/main/java/org/nl/wms/st/outbill/service/impl/CheckOutBillServiceImpl.java
@@ -2873,7 +2873,11 @@ public class CheckOutBillServiceImpl implements CheckOutBillService {
                 String box_no = json.getString("box_no");
                 String sub_box_no = "";
                 if (ObjectUtil.isNotEmpty(box_no)) {
-                    sub_box_no = box_no.substring(box_no.lastIndexOf("@")+1, box_no.length());
+                    try {
+                        sub_box_no = box_no.substring(box_no.lastIndexOf("@")+1, box_no.length());
+                    } catch (Exception e) {
+                        sub_box_no = box_no;
+                    }
                 }
 
                 HashMap<String, Object> mapFL = new HashMap<>();