diff --git a/src/main/java/itn/let/mjo/msgdata/service/impl/MjonMsgDataServiceImpl.java b/src/main/java/itn/let/mjo/msgdata/service/impl/MjonMsgDataServiceImpl.java
index dfe9f178..87aa570b 100644
--- a/src/main/java/itn/let/mjo/msgdata/service/impl/MjonMsgDataServiceImpl.java
+++ b/src/main/java/itn/let/mjo/msgdata/service/impl/MjonMsgDataServiceImpl.java
@@ -2596,7 +2596,16 @@ public class MjonMsgDataServiceImpl extends EgovAbstractServiceImpl implements M
  * 신규 IDgen 값 생성해주기
  * 
  * */
-    	String subUserId = mjonMsgVO.getUserId().substring(0, 5).toUpperCase();
+    	String subUserId = "";
+    	if(mjonMsgVO.getUserId().length() < 5) {
+    		int a = 5 - mjonMsgVO.getUserId().length();
+    		subUserId = mjonMsgVO.getUserId();
+    		for(int i=0; i < a; i++) {
+    			subUserId += "0";
+    		}
+    	}else {
+    		subUserId = mjonMsgVO.getUserId().substring(0, 5).toUpperCase();
+    	}
     	mjonMsgVO.setSearchKeyword(subUserId);
     	System.out.println("+++++++++++ subUserId ::: "+subUserId);