diff --git a/Api/OnlineSalesAutoCrop.CoreAPI.Models/Responses/MobileApp/MobileMasterDataResponse.cs b/Api/OnlineSalesAutoCrop.CoreAPI.Models/Responses/MobileApp/MobileMasterDataResponse.cs
index b3a1eb5..e3fbf00 100644
--- a/Api/OnlineSalesAutoCrop.CoreAPI.Models/Responses/MobileApp/MobileMasterDataResponse.cs
+++ b/Api/OnlineSalesAutoCrop.CoreAPI.Models/Responses/MobileApp/MobileMasterDataResponse.cs
@@ -190,11 +190,11 @@ public class GetDiscountMaterialResponse
 
 public class GetFOCResponse
 {
-    public string SalesOrgcCode { get; set; }
+    public string? SalesOrgcCode { get; set; }
     public string FOCCode { get; set; }
     public string FOCName { get; set; }
-    public string DistributorChannelCode { get; set; }
-    public string DistributorChannelName { get; set; }
+    public string? DistributorChannelCode { get; set; }
+    public string? DistributorChannelName { get; set; }
 
 }
 
diff --git a/Api/OnlineSalesAutoCrop.CoreAPI.Services/Services/MobileApp/MobileMasterDataService.cs b/Api/OnlineSalesAutoCrop.CoreAPI.Services/Services/MobileApp/MobileMasterDataService.cs
index d5fdfbe..a7ec9be 100644
--- a/Api/OnlineSalesAutoCrop.CoreAPI.Services/Services/MobileApp/MobileMasterDataService.cs
+++ b/Api/OnlineSalesAutoCrop.CoreAPI.Services/Services/MobileApp/MobileMasterDataService.cs
@@ -842,11 +842,11 @@ public class MobileMasterDataService : IMobileMasterDataService
                     {
                         response.Items.Add(new GetFOCResponse
                         {
-                            SalesOrgcCode = dr.GetString(0),
+                            SalesOrgcCode =dr.IsDBNull(0) ? null : dr.GetString(0),
                             FOCCode = dr.GetString(1),
                             FOCName = dr.GetString(2),
-                            DistributorChannelCode = dr.GetString(3),
-                            DistributorChannelName = dr.GetString(4)
+                            DistributorChannelCode = dr.IsDBNull(3) ? null : dr.GetString(3),
+                            DistributorChannelName = dr.IsDBNull(4) ? null : dr.GetString(4)
                         });
                     }
                     dr.Close();