diff --git a/AstuteSystem/src/main/java/com/astute/service/InvoiceService.java b/AstuteSystem/src/main/java/com/astute/service/InvoiceService.java
index b1255a5..01af3bc 100644
--- a/AstuteSystem/src/main/java/com/astute/service/InvoiceService.java
+++ b/AstuteSystem/src/main/java/com/astute/service/InvoiceService.java
@@ -68,4 +68,10 @@ public class InvoiceService extends Service{
     public void voidInvoice(String InvoiceNumber) throws AstuteException {
         getDao().voidInvoice(InvoiceNumber);
     }
+
+    public String dupliateInvoice(String InvoiceNumber) throws AstuteException {
+        return getDao().dupliateInvoice(InvoiceNumber);
+    }
+
+
 }