diff --git a/.vs/WMS.Web/DesignTimeBuild/.dtbcache.v2 b/.vs/WMS.Web/DesignTimeBuild/.dtbcache.v2
index b2c375e3..fa1f49aa 100644
Binary files a/.vs/WMS.Web/DesignTimeBuild/.dtbcache.v2 and b/.vs/WMS.Web/DesignTimeBuild/.dtbcache.v2 differ
diff --git a/src/WMS.Web.Repositories/SerialNumbersRepositories.cs b/src/WMS.Web.Repositories/SerialNumbersRepositories.cs
index 1b279245..bb85812f 100644
--- a/src/WMS.Web.Repositories/SerialNumbersRepositories.cs
+++ b/src/WMS.Web.Repositories/SerialNumbersRepositories.cs
@@ -317,17 +317,25 @@ namespace WMS.Web.Repositories
             if (entity.boxInventory != null)
                 response.IsBoxInventory = entity.boxInventory.Details.SelectMany(s => s.SerialNumbers).Where(w => serialNumber.Equals(w)).Count() >= 1 ? true : false;
             response.IsTwo = entity.serial.IsTwo;
-            if (entity.serial.TwoSerialNumber != null)
+            if (entity.serial.IsTwo > 1)
             {
-                response.TwoSerialNumber = entity.serial.TwoSerialNumber.Replace(entity.serial.SerialNumber, "").Replace(",", "");
-                response.IsNotCount = entity.serial.IsNotCount;
+                if (entity.serial.TwoSerialNumber != null)
+                {
+                    response.TwoSerialNumber = entity.serial.TwoSerialNumber.Replace(entity.serial.SerialNumber, "").Replace(",", "");
+                    response.IsNotCount = entity.serial.IsNotCount;
+                }
+                else
+                {
+                    response.TwoSerialNumber = "";
+                    response.IsNotCount = "0";
+                }
             }
             else
             {
                 response.TwoSerialNumber = "";
                 response.IsNotCount = "0";
             }
-            response.IsNotCount = entity.serial.IsNotCount;
+                response.IsNotCount = entity.serial.IsNotCount;
 
             return response;
         }