diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/models/user-management.api.models.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/models/user-management.api.models.ts
index de94dc2..9af1b93 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/models/user-management.api.models.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/models/user-management.api.models.ts
@@ -61,7 +61,7 @@ export interface GroupOfUser {
 export interface UserRep {
     id?: number,
     repUserId?: number,
-    userId: number,
+    userId?: number,
     repGroupId?: number,
     groupId?: number,
     addedWho: string,
diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/pages/user-representation/user-representation.component.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/pages/user-representation/user-representation.component.ts
index dc94308..e0c9dcb 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/pages/user-representation/user-representation.component.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/pages/user-representation/user-representation.component.ts
@@ -1,4 +1,4 @@
-import { AfterViewInit, Component, Inject, ViewChild } from '@angular/core';
+import { AfterViewInit, Component, ViewChild } from '@angular/core';
 import { GuiColumn, GuiSelectedRow } from '@generic-ui/ngx-grid/gui/grid/src/core/api/gui.grid.public-api';
 import { UserTableComponent } from '../../components/tables/user-table/user-table.component';
 import { UserRepTableComponent } from '../../components/tables/user-rep-table/user-rep-table.component';
diff --git a/DigitalData.UserManager.Application/DTOs/UserRep/UserRepCreateDto.cs b/DigitalData.UserManager.Application/DTOs/UserRep/UserRepCreateDto.cs
index 26972e0..6cf8e71 100644
--- a/DigitalData.UserManager.Application/DTOs/UserRep/UserRepCreateDto.cs
+++ b/DigitalData.UserManager.Application/DTOs/UserRep/UserRepCreateDto.cs
@@ -3,7 +3,7 @@
 namespace DigitalData.UserManager.Application.DTOs.UserRep
 {
     public record UserRepCreateDto(
-        int UserId,
+        int? UserId,
         int? RepGroupId,
         int? GroupId,
         int RepUserId
diff --git a/DigitalData.UserManager.Application/DTOs/UserRep/UserRepReadDto.cs b/DigitalData.UserManager.Application/DTOs/UserRep/UserRepReadDto.cs
index 0cc8948..449fe3b 100644
--- a/DigitalData.UserManager.Application/DTOs/UserRep/UserRepReadDto.cs
+++ b/DigitalData.UserManager.Application/DTOs/UserRep/UserRepReadDto.cs
@@ -6,7 +6,7 @@ namespace DigitalData.UserManager.Application.DTOs.UserRep
 {
     public record UserRepReadDto(
         int Id,
-        int UserId,
+        int? UserId,
         int? RepGroupId,
         int? GroupId,
         string AddedWho,
diff --git a/DigitalData.UserManager.Application/DTOs/UserRep/UserRepUpdateDto.cs b/DigitalData.UserManager.Application/DTOs/UserRep/UserRepUpdateDto.cs
index 713d817..366fa20 100644
--- a/DigitalData.UserManager.Application/DTOs/UserRep/UserRepUpdateDto.cs
+++ b/DigitalData.UserManager.Application/DTOs/UserRep/UserRepUpdateDto.cs
@@ -3,7 +3,7 @@
 namespace DigitalData.UserManager.Application.DTOs.UserRep
 {
     public record UserRepUpdateDto(
-        int UserId,
+        int? UserId,
         int? RepGroupId,
         int? GroupId,
         int RepUserId
diff --git a/DigitalData.UserManager.Domain/Entities/UserRep.cs b/DigitalData.UserManager.Domain/Entities/UserRep.cs
index 0100e26..a59679b 100644
--- a/DigitalData.UserManager.Domain/Entities/UserRep.cs
+++ b/DigitalData.UserManager.Domain/Entities/UserRep.cs
@@ -8,7 +8,7 @@ namespace DigitalData.UserManager.Domain.Entities
     {
         [Required]
         [Column("USER_ID")]
-        public int UserId { get; set; }
+        public int? UserId { get; set; }
 
         [Column("REPR_GROUP")]
         public int? RepGroupId { get; set; }