diff --git a/src/main/java/com/glxp/api/res/basic/UdiRelevanceResponse.java b/src/main/java/com/glxp/api/res/basic/UdiRelevanceResponse.java
index 4d588f774..e192f98a9 100644
--- a/src/main/java/com/glxp/api/res/basic/UdiRelevanceResponse.java
+++ b/src/main/java/com/glxp/api/res/basic/UdiRelevanceResponse.java
@@ -155,6 +155,12 @@ public class UdiRelevanceResponse {
         return allowNoProduct;
     }
 
+    public Boolean getAllowNoSerial() {
+
+        if (allowNoSerial == null)
+            return true;
+        return allowNoSerial;
+    }
 
     public Boolean getUseDy() {
         if (isUseDy == null)