diff --git a/IRaCIS.Core.Application/Service/Document/DTO/TrialEmailNoticeConfigViewModel.cs b/IRaCIS.Core.Application/Service/Document/DTO/TrialEmailNoticeConfigViewModel.cs
index 0f1c89010..bcc92e000 100644
--- a/IRaCIS.Core.Application/Service/Document/DTO/TrialEmailNoticeConfigViewModel.cs
+++ b/IRaCIS.Core.Application/Service/Document/DTO/TrialEmailNoticeConfigViewModel.cs
@@ -136,7 +136,7 @@ namespace IRaCIS.Core.Application.ViewModel
         public Guid TrialId { get; set; }
 
      
-        public CriterionType CriterionTypeEnum { get; set; }
+        public CriterionType? CriterionTypeEnum { get; set; }
 
 
         public List<UserTypeEnum> ToUserTypeList { get; set; }
@@ -179,8 +179,8 @@ namespace IRaCIS.Core.Application.ViewModel
         public string Description { get; set; } = string.Empty;
 
 
-        public string AttachName { get; set; }
-        public string AttachNameCN { get; set; }
+        public string AttachName { get; set; } = string.Empty;
+        public string AttachNameCN { get; set; } = string.Empty;
 
 
         public string EmailHtmlContent { get; set; } = string.Empty;
diff --git a/IRaCIS.Core.Domain/Document/TrialEmailNoticeConfig.cs b/IRaCIS.Core.Domain/Document/TrialEmailNoticeConfig.cs
index e75d90472..620bfb710 100644
--- a/IRaCIS.Core.Domain/Document/TrialEmailNoticeConfig.cs
+++ b/IRaCIS.Core.Domain/Document/TrialEmailNoticeConfig.cs
@@ -18,6 +18,9 @@ namespace IRaCIS.Core.Domain.Models
 	 [Table("TrialEmailNoticeConfig")]	
 	 public class TrialEmailNoticeConfig : Entity, IAuditUpdate, IAuditAdd
 	 {
+		[JsonIgnore]
+
+		public Trial Trial { get; set; }
 
 		[Required]
 		public Guid TrialId { get; set; }
diff --git a/IRaCIS.Core.Domain/_Config/_AppSettings.cs b/IRaCIS.Core.Domain/_Config/_AppSettings.cs
index d67ca0634..1e18fa787 100644
--- a/IRaCIS.Core.Domain/_Config/_AppSettings.cs
+++ b/IRaCIS.Core.Domain/_Config/_AppSettings.cs
@@ -35,6 +35,8 @@ namespace IRaCIS.Core.Domain.Share
         public string FromName { get; set; }
 
         public string AuthorizationCode { get; set; } 
+
+        public string SiteUrl { get; set; }
     }