diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/environments/environment.prod.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/environments/environment.prod.ts
index 0f8d432..591410b9 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/environments/environment.prod.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/environments/environment.prod.ts
@@ -89,7 +89,7 @@ export const env = {
                     field: "name"
                 }
             ],
-            complete: [
+            detailed: [
                 {
                     header: "Gruppe",
                     field: "name"
@@ -97,34 +97,6 @@ export const env = {
                 {
                     header: "Kommentar",
                     field: "comment"
-                },
-                {
-                    header: "Active",
-                    field: (group: any) => group.active ? "✓" : ""
-                },
-                {
-                    header: "AD Sync",
-                    field: (group: any) => group.adSync ? "✓" : ""
-                },
-                {
-                    header: "Internal",
-                    field: (group: any) => group.internal ? "✓" : ""
-                },
-                {
-                    header: 'Hinzugefügt<br>wer',
-                    field: (g: any) => g.addedWho
-                },
-                {
-                    header: 'Hinzugefügt<br>wann',
-                    field: (g: any) => new Date(g.addedWhen).toLocaleString('de-DE', { day: '2-digit', month: '2-digit', year: '2-digit', hour: '2-digit', minute: '2-digit' }).replace(',', '')
-                },
-                {
-                    header: 'Geändert<br>wer',
-                    field: 'changedWho'
-                },
-                {
-                    header: 'Geändert<br>wann',
-                    field: (g: any) => new Date(g.changedWhen).toLocaleString('de-DE', { day: '2-digit', month: '2-digit', year: '2-digit', hour: '2-digit', minute: '2-digit' }).replace(',', '')
                 }
             ],
             representative: [
@@ -189,10 +161,6 @@ export const env = {
                 header: "Repr. Gruppen",
                 field: (ur: any) => ur.repGroup?.name
             },
-            {
-                header: "Rechte Gruppen",
-                field: (ur: any) => ur.rightGroup?.name
-            },
             {
                 header: "Repr. Benutzer",
                 field: (ur: any) => ur.repUser?.username
@@ -220,4 +188,4 @@ export const env = {
             { value: "en-US", name: "en-US" }
         ]
     }
-};
+};
\ No newline at end of file
diff --git a/DigitalData.UserManager.API/Program.cs b/DigitalData.UserManager.API/Program.cs
index 61ead86..eef8e0b 100644
--- a/DigitalData.UserManager.API/Program.cs
+++ b/DigitalData.UserManager.API/Program.cs
@@ -54,7 +54,7 @@ try {
     // Once the app is built, the password will be decrypted with Encryptor. lazy loading also acts as a call back method.
     Lazy<string>? cnn_str = null;
 
-    builder.Services.AddDbContext<UserManagerDbContext>(options => options.UseSqlServer(cnn_str!.Value).EnableDetailedErrors());
+    builder.Services.AddDbContext<UserManagerDbContext>(options => options.UseSqlServer(cnn_str!.Value).EnableSensitiveDataLogging());
 
     var allowedOrigins = builder.Configuration.GetSection("AllowedOrigins").Get<string[]>() ?? throw new InvalidOperationException("In appsettings there is no allowed origin.");
 
diff --git a/DigitalData.UserManager.Application/DTOs/UserRep/UserRepCreateDto.cs b/DigitalData.UserManager.Application/DTOs/UserRep/UserRepCreateDto.cs
index 6cf8e71..f93ffe6 100644
--- a/DigitalData.UserManager.Application/DTOs/UserRep/UserRepCreateDto.cs
+++ b/DigitalData.UserManager.Application/DTOs/UserRep/UserRepCreateDto.cs
@@ -6,6 +6,6 @@ namespace DigitalData.UserManager.Application.DTOs.UserRep
         int? UserId,
         int? RepGroupId,
         int? GroupId,
-        int RepUserId
+        int? RepUserId
     ) : BaseCreateDto();
 }
\ No newline at end of file
diff --git a/DigitalData.UserManager.Application/DTOs/UserRep/UserRepReadDto.cs b/DigitalData.UserManager.Application/DTOs/UserRep/UserRepReadDto.cs
index d4228a4..f81bf8b 100644
--- a/DigitalData.UserManager.Application/DTOs/UserRep/UserRepReadDto.cs
+++ b/DigitalData.UserManager.Application/DTOs/UserRep/UserRepReadDto.cs
@@ -11,7 +11,7 @@ namespace DigitalData.UserManager.Application.DTOs.UserRep
         int? RepUserId,
         int? RepGroupId,        
         string AddedWho,
-        string ChangedWho,        
+        string? ChangedWho,        
         UserReadDto? User,
         GroupReadDto? RepGroup,
         GroupReadDto? Group,
diff --git a/DigitalData.UserManager.Application/DTOs/UserRep/UserRepUpdateDto.cs b/DigitalData.UserManager.Application/DTOs/UserRep/UserRepUpdateDto.cs
index 366fa20..59165f0 100644
--- a/DigitalData.UserManager.Application/DTOs/UserRep/UserRepUpdateDto.cs
+++ b/DigitalData.UserManager.Application/DTOs/UserRep/UserRepUpdateDto.cs
@@ -6,6 +6,6 @@ namespace DigitalData.UserManager.Application.DTOs.UserRep
         int? UserId,
         int? RepGroupId,
         int? GroupId,
-        int RepUserId
+        int? RepUserId
     ) : BaseUpdateDto();
 }
\ No newline at end of file
diff --git a/DigitalData.UserManager.Domain/Entities/BaseEntity.cs b/DigitalData.UserManager.Domain/Entities/BaseEntity.cs
index f6609b1..cd53a72 100644
--- a/DigitalData.UserManager.Domain/Entities/BaseEntity.cs
+++ b/DigitalData.UserManager.Domain/Entities/BaseEntity.cs
@@ -20,6 +20,7 @@ namespace DigitalData.UserManager.Domain.Entities
         [Column("CHANGED_WHO")]
         public string? ChangedWho { get; set; }
 
+        //TODO: assign it to default value in create dto, not here!
         [Column("ADDED_WHEN", TypeName = "datetime")]
         [DefaultValue("GETDATE()")]
         public DateTime AddedWhen { get; set; } = DateTime.Now;
diff --git a/DigitalData.UserManager.Domain/Entities/UserRep.cs b/DigitalData.UserManager.Domain/Entities/UserRep.cs
index a59679b..1b40d1f 100644
--- a/DigitalData.UserManager.Domain/Entities/UserRep.cs
+++ b/DigitalData.UserManager.Domain/Entities/UserRep.cs
@@ -6,7 +6,6 @@ namespace DigitalData.UserManager.Domain.Entities
     [Table("TBDD_USER_REPRESENTATION", Schema = "dbo")]
     public class UserRep : BaseEntity
     {
-        [Required]
         [Column("USER_ID")]
         public int? UserId { get; set; }