diff --git a/src/GameIdeas/GameIdeas.Shared/Constants/GlobalConstants.cs b/src/GameIdeas/GameIdeas.Shared/Constants/GlobalConstants.cs
index ff8ddf9..464a750 100644
--- a/src/GameIdeas/GameIdeas.Shared/Constants/GlobalConstants.cs
+++ b/src/GameIdeas/GameIdeas.Shared/Constants/GlobalConstants.cs
@@ -2,6 +2,13 @@
 
 public class GlobalConstants
 {
-    public static int NUMBER_PER_PAGE = 50;
+    public readonly static Guid ADMINISTRATOR_ID = Guid.Parse("{06CA5CB7-6DE5-4A73-9DDD-8E2D5CCDF104}");
+    public readonly static Guid ADMINISTRATOR_USER_ID = Guid.Parse("{2AB56FCB-0CDE-4DAE-AC9C-FC7635B0D18A}");
+    public readonly static Guid MEMBER_ID = Guid.Parse("{BCE14DEA-1748-4A76-8485-ADEE83DF5EFD}");
+
+    public readonly static string ADMINISTRATOR = "Administrateur";
+    public readonly static string MEMBER = "Membre";
+
+    public readonly static int NUMBER_PER_PAGE = 50;
 }
     
\ No newline at end of file
diff --git a/src/GameIdeas/Server/GameIdeas.WebAPI/Migrations/20250420160158_SeedDefaultUser.cs b/src/GameIdeas/Server/GameIdeas.WebAPI/Migrations/20250420160158_SeedDefaultUser.cs
index cb8c9e1..85a47ed 100644
--- a/src/GameIdeas/Server/GameIdeas.WebAPI/Migrations/20250420160158_SeedDefaultUser.cs
+++ b/src/GameIdeas/Server/GameIdeas.WebAPI/Migrations/20250420160158_SeedDefaultUser.cs
@@ -1,4 +1,5 @@
-using Microsoft.EntityFrameworkCore.Migrations;
+using GameIdeas.Shared.Constants;
+using Microsoft.EntityFrameworkCore.Migrations;
 
 #nullable disable
 
@@ -7,10 +8,6 @@ namespace GameIdeas.WebAPI.Migrations
     /// <inheritdoc />
     public partial class SeedDefaultUser : Migration
     {
-        private readonly Guid AdminId = Guid.Parse("{06CA5CB7-6DE5-4A73-9DDD-8E2D5CCDF104}");
-        private readonly Guid AdminUserId = Guid.Parse("{2AB56FCB-0CDE-4DAE-AC9C-FC7635B0D18A}");
-        private readonly Guid MemberId = Guid.Parse("{BCE14DEA-1748-4A76-8485-ADEE83DF5EFD}");
-
         /// <inheritdoc />
         protected override void Up(MigrationBuilder migrationBuilder)
         {
@@ -20,15 +17,15 @@ namespace GameIdeas.WebAPI.Migrations
             values: new object[,]
             {
                 {
-                    AdminId.ToString(),
-                    "Administrateur",
-                    "ADMINISTRATEUR",
+                    GlobalConstants.ADMINISTRATOR_ID.ToString(),
+                    GlobalConstants.ADMINISTRATOR,
+                    GlobalConstants.ADMINISTRATOR.Normalize(),
                     Guid.NewGuid().ToString()
                 },
                 {
-                    MemberId.ToString(),
-                    "Membre",
-                    "MEMBRE",
+                    GlobalConstants.MEMBER_ID.ToString(),
+                    GlobalConstants.MEMBER,
+                    GlobalConstants.MEMBER.Normalize(),
                     Guid.NewGuid().ToString()
                 }
             });
@@ -42,7 +39,7 @@ namespace GameIdeas.WebAPI.Migrations
                 ],
                 values:
                 [
-                    AdminUserId.ToString(), "admin", "ADMIN",
+                    GlobalConstants.ADMINISTRATOR_USER_ID.ToString(), "admin", "ADMIN",
                     false, false, false,
                     "AQAAAAIAAYagAAAAEOGx7MFBLpS7awda0ww6jsfXsnhsUjYd4gDK9DaGvQv0X9UZTuHStr5v5+t4Y1S+xg==",
                     Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0, false
@@ -51,16 +48,16 @@ namespace GameIdeas.WebAPI.Migrations
             migrationBuilder.InsertData(
                 table: "AspNetUserRoles",
                 columns: ["UserId", "RoleId"],
-                values: [AdminUserId.ToString(), AdminId.ToString()]);
+                values: [GlobalConstants.ADMINISTRATOR_USER_ID.ToString(), GlobalConstants.ADMINISTRATOR_ID.ToString()]);
         }
 
         /// <inheritdoc />
         protected override void Down(MigrationBuilder migrationBuilder)
         {
-            migrationBuilder.Sql(@$"DELETE FROM ""AspNetUserRoles"" WHERE ""UserId"" = '{AdminUserId.ToString()}' AND ""RoleId"" = '{AdminId.ToString()}'");
-            migrationBuilder.DeleteData("AspNetUsers", "Id", AdminUserId.ToString());
-            migrationBuilder.DeleteData("AspNetRoles", "Id", AdminId.ToString());
-            migrationBuilder.DeleteData("AspNetRoles", "Id", MemberId.ToString());
+            migrationBuilder.Sql(@$"DELETE FROM ""AspNetUserRoles"" WHERE ""UserId"" = '{GlobalConstants.ADMINISTRATOR_USER_ID.ToString()}' AND ""RoleId"" = '{GlobalConstants.ADMINISTRATOR_ID.ToString()}'");
+            migrationBuilder.DeleteData("AspNetUsers", "Id", GlobalConstants.ADMINISTRATOR_USER_ID.ToString());
+            migrationBuilder.DeleteData("AspNetRoles", "Id", GlobalConstants.ADMINISTRATOR_ID.ToString());
+            migrationBuilder.DeleteData("AspNetRoles", "Id", GlobalConstants.MEMBER_ID.ToString());
         }
     }
 }