diff --git a/IRaCIS.Core.Application/Service/SiteSurvey/TrialSiteSurveyService.cs b/IRaCIS.Core.Application/Service/SiteSurvey/TrialSiteSurveyService.cs
index d4115f590..855e363e1 100644
--- a/IRaCIS.Core.Application/Service/SiteSurvey/TrialSiteSurveyService.cs
+++ b/IRaCIS.Core.Application/Service/SiteSurvey/TrialSiteSurveyService.cs
@@ -708,7 +708,7 @@ namespace IRaCIS.Core.Application.Contracts
                 throw new BusinessValidationFailedException(_localizer["TrialSiteSurvey_MissingAccount"]);
             }
 
-            if (currentUserList.GroupBy(t => new { t.UserTypeId, t.Email })
+            if (currentUserList.Where(t=>t.IsGenerateAccount &&  t.UserTypeId!=null).GroupBy(t => new { t.UserTypeId, t.Email })
                 .Any(g => g.Count() > 1))
             {
                 throw new BusinessValidationFailedException(_localizer["TrialSiteSurvey_DuplicateEmail"]);