diff --git a/BeReadyBackend/Migrations/20260317081620_AddedRestrictionsOnDB.Designer.cs b/BeReadyBackend/Migrations/20260317081620_AddedRestrictionsOnDB.Designer.cs
new file mode 100644
index 0000000..2eed67a
--- /dev/null
+++ b/BeReadyBackend/Migrations/20260317081620_AddedRestrictionsOnDB.Designer.cs
@@ -0,0 +1,442 @@
+// <auto-generated />
+using System;
+using BeReadyBackend;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace BeReadyBackend.Migrations
+{
+    [DbContext(typeof(BeReadyDbContext))]
+    [Migration("20260317081620_AddedRestrictionsOnDB")]
+    partial class AddedRestrictionsOnDB
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.20")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("BeReadyBackend.Models.Achievement", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Description")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Label")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Achievements");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.Designation", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Label")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Designations");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.Group", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("CreationDate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<string>("Description")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int>("Duration")
+                        .HasColumnType("int");
+
+                    b.Property<bool>("IsFinished")
+                        .HasColumnType("bit");
+
+                    b.Property<string>("Label")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Groups");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.Message", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("GroupId")
+                        .HasColumnType("int");
+
+                    b.Property<string>("Libelle")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("SendDate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("UserId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("GroupId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Messages");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.RandomChallenge", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Duration")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime?>("GeneratedAt")
+                        .IsRequired()
+                        .HasColumnType("datetime2");
+
+                    b.Property<bool>("IsAlreadyPast")
+                        .HasColumnType("bit");
+
+                    b.Property<string>("Libelle")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("RandomChallenges");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.User", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("CreationDate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int?>("DesignationId")
+                        .HasColumnType("int");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("nvarchar(100)");
+
+                    b.Property<string>("FirstName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasMaxLength(60)
+                        .HasColumnType("nvarchar(60)");
+
+                    b.Property<string>("Salt")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int>("Score")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Series")
+                        .HasColumnType("int");
+
+                    b.Property<int>("TotalBonusChallenge")
+                        .HasColumnType("int");
+
+                    b.Property<int>("TotalChallenge")
+                        .HasColumnType("int");
+
+                    b.Property<int>("TotalPodium")
+                        .HasColumnType("int");
+
+                    b.Property<int>("TotalWin")
+                        .HasColumnType("int");
+
+                    b.Property<string>("Username")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DesignationId");
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.UserAchievement", b =>
+                {
+                    b.Property<int>("UserId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("AchievementId")
+                        .HasColumnType("int");
+
+                    b.HasKey("UserId", "AchievementId");
+
+                    b.HasIndex("AchievementId");
+
+                    b.ToTable("UserAchievements");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.UserFriend", b =>
+                {
+                    b.Property<int>("UserId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("FriendId")
+                        .HasColumnType("int");
+
+                    b.Property<bool>("IsAccepted")
+                        .HasColumnType("bit");
+
+                    b.HasKey("UserId", "FriendId");
+
+                    b.HasIndex("FriendId");
+
+                    b.ToTable("UserFriends");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.UserGroup", b =>
+                {
+                    b.Property<int>("UserId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("GroupId")
+                        .HasColumnType("int");
+
+                    b.Property<string>("Grade")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Proof")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int>("Score")
+                        .HasColumnType("int");
+
+                    b.Property<int?>("VotedProofId")
+                        .HasColumnType("int");
+
+                    b.HasKey("UserId", "GroupId");
+
+                    b.HasIndex("GroupId");
+
+                    b.ToTable("UserGroups");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.UserRandomChallenge", b =>
+                {
+                    b.Property<int>("UserId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("RandomChallengeId")
+                        .HasColumnType("int");
+
+                    b.Property<string>("Proof")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("UserId", "RandomChallengeId");
+
+                    b.HasIndex("RandomChallengeId");
+
+                    b.ToTable("UserRandomChallenges");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.Message", b =>
+                {
+                    b.HasOne("BeReadyBackend.Models.Group", "Group")
+                        .WithMany("Messages")
+                        .HasForeignKey("GroupId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("BeReadyBackend.Models.User", "User")
+                        .WithMany("Messages")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Group");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.User", b =>
+                {
+                    b.HasOne("BeReadyBackend.Models.Designation", "Designation")
+                        .WithMany("Users")
+                        .HasForeignKey("DesignationId");
+
+                    b.Navigation("Designation");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.UserAchievement", b =>
+                {
+                    b.HasOne("BeReadyBackend.Models.Achievement", "Achievement")
+                        .WithMany("UserAchievements")
+                        .HasForeignKey("AchievementId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("BeReadyBackend.Models.User", "User")
+                        .WithMany("UserAchievements")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Achievement");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.UserFriend", b =>
+                {
+                    b.HasOne("BeReadyBackend.Models.User", "Friend")
+                        .WithMany()
+                        .HasForeignKey("FriendId")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.HasOne("BeReadyBackend.Models.User", "User")
+                        .WithMany("UserFriends")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.Navigation("Friend");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.UserGroup", b =>
+                {
+                    b.HasOne("BeReadyBackend.Models.Group", "Group")
+                        .WithMany("UserGroups")
+                        .HasForeignKey("GroupId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("BeReadyBackend.Models.User", "User")
+                        .WithMany("UserGroups")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Group");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.UserRandomChallenge", b =>
+                {
+                    b.HasOne("BeReadyBackend.Models.RandomChallenge", "RandomChallenge")
+                        .WithMany("UserRandomChallenges")
+                        .HasForeignKey("RandomChallengeId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("BeReadyBackend.Models.User", "User")
+                        .WithMany("UserRandomChallenges")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("RandomChallenge");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.Achievement", b =>
+                {
+                    b.Navigation("UserAchievements");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.Designation", b =>
+                {
+                    b.Navigation("Users");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.Group", b =>
+                {
+                    b.Navigation("Messages");
+
+                    b.Navigation("UserGroups");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.RandomChallenge", b =>
+                {
+                    b.Navigation("UserRandomChallenges");
+                });
+
+            modelBuilder.Entity("BeReadyBackend.Models.User", b =>
+                {
+                    b.Navigation("Messages");
+
+                    b.Navigation("UserAchievements");
+
+                    b.Navigation("UserFriends");
+
+                    b.Navigation("UserGroups");
+
+                    b.Navigation("UserRandomChallenges");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/BeReadyBackend/Migrations/20260317081620_AddedRestrictionsOnDB.cs b/BeReadyBackend/Migrations/20260317081620_AddedRestrictionsOnDB.cs
new file mode 100644
index 0000000..a81cbe6
--- /dev/null
+++ b/BeReadyBackend/Migrations/20260317081620_AddedRestrictionsOnDB.cs
@@ -0,0 +1,102 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace BeReadyBackend.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddedRestrictionsOnDB : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<string>(
+                name: "Username",
+                table: "Users",
+                type: "nvarchar(max)",
+                nullable: false,
+                oldClrType: typeof(string),
+                oldType: "nvarchar(50)",
+                oldMaxLength: 50);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Name",
+                table: "Users",
+                type: "nvarchar(max)",
+                nullable: false,
+                oldClrType: typeof(string),
+                oldType: "nvarchar(50)",
+                oldMaxLength: 50);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "FirstName",
+                table: "Users",
+                type: "nvarchar(max)",
+                nullable: false,
+                oldClrType: typeof(string),
+                oldType: "nvarchar(50)",
+                oldMaxLength: 50);
+
+            migrationBuilder.AddColumn<DateTime>(
+                name: "GeneratedAt",
+                table: "RandomChallenges",
+                type: "datetime2",
+                nullable: false,
+                defaultValue: new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified));
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Label",
+                table: "Groups",
+                type: "nvarchar(max)",
+                nullable: false,
+                oldClrType: typeof(string),
+                oldType: "nvarchar(100)",
+                oldMaxLength: 100);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "GeneratedAt",
+                table: "RandomChallenges");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Username",
+                table: "Users",
+                type: "nvarchar(50)",
+                maxLength: 50,
+                nullable: false,
+                oldClrType: typeof(string),
+                oldType: "nvarchar(max)");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Name",
+                table: "Users",
+                type: "nvarchar(50)",
+                maxLength: 50,
+                nullable: false,
+                oldClrType: typeof(string),
+                oldType: "nvarchar(max)");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "FirstName",
+                table: "Users",
+                type: "nvarchar(50)",
+                maxLength: 50,
+                nullable: false,
+                oldClrType: typeof(string),
+                oldType: "nvarchar(max)");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Label",
+                table: "Groups",
+                type: "nvarchar(100)",
+                maxLength: 100,
+                nullable: false,
+                oldClrType: typeof(string),
+                oldType: "nvarchar(max)");
+        }
+    }
+}
diff --git a/BeReadyBackend/Migrations/BeReadyDbContextModelSnapshot.cs b/BeReadyBackend/Migrations/BeReadyDbContextModelSnapshot.cs
index 41ad7c2..ee291d5 100644
--- a/BeReadyBackend/Migrations/BeReadyDbContextModelSnapshot.cs
+++ b/BeReadyBackend/Migrations/BeReadyDbContextModelSnapshot.cs
@@ -83,8 +83,7 @@ namespace BeReadyBackend.Migrations
 
                     b.Property<string>("Label")
                         .IsRequired()
-                        .HasMaxLength(100)
-                        .HasColumnType("nvarchar(100)");
+                        .HasColumnType("nvarchar(max)");
 
                     b.Property<string>("Title")
                         .IsRequired()
@@ -136,6 +135,10 @@ namespace BeReadyBackend.Migrations
                     b.Property<int>("Duration")
                         .HasColumnType("int");
 
+                    b.Property<DateTime?>("GeneratedAt")
+                        .IsRequired()
+                        .HasColumnType("datetime2");
+
                     b.Property<bool>("IsAlreadyPast")
                         .HasColumnType("bit");
 
@@ -169,13 +172,11 @@ namespace BeReadyBackend.Migrations
 
                     b.Property<string>("FirstName")
                         .IsRequired()
-                        .HasMaxLength(50)
-                        .HasColumnType("nvarchar(50)");
+                        .HasColumnType("nvarchar(max)");
 
                     b.Property<string>("Name")
                         .IsRequired()
-                        .HasMaxLength(50)
-                        .HasColumnType("nvarchar(50)");
+                        .HasColumnType("nvarchar(max)");
 
                     b.Property<string>("Password")
                         .IsRequired()
@@ -206,8 +207,7 @@ namespace BeReadyBackend.Migrations
 
                     b.Property<string>("Username")
                         .IsRequired()
-                        .HasMaxLength(50)
-                        .HasColumnType("nvarchar(50)");
+                        .HasColumnType("nvarchar(max)");
 
                     b.HasKey("Id");
 
diff --git a/BeReadyBackend/Models/Achievement.cs b/BeReadyBackend/Models/Achievement.cs
index 62907fe..0e77464 100644
--- a/BeReadyBackend/Models/Achievement.cs
+++ b/BeReadyBackend/Models/Achievement.cs
@@ -5,8 +5,8 @@ namespace BeReadyBackend.Models;
 public class Achievement
 {
     [Key] public int Id { get; set; }
-    [Required] public string? Label { get; set; }
-    [Required] public string? Description { get; set; }
+    [Required, Length(2, 200)] public string? Label { get; set; }
+    [Required, Length(2, 200)] public string? Description { get; set; }
 
     public List<UserAchievement>? UserAchievements { get; set; }
 }
\ No newline at end of file
diff --git a/BeReadyBackend/Models/Designation.cs b/BeReadyBackend/Models/Designation.cs
index 793d0ec..b7c499e 100644
--- a/BeReadyBackend/Models/Designation.cs
+++ b/BeReadyBackend/Models/Designation.cs
@@ -5,7 +5,7 @@ namespace BeReadyBackend.Models;
 public class Designation
 {
     [Key] public int Id { get; set; }
-    [Required] public string? Label { get; set; }
+    [Required, Length(2, 100)] public string? Label { get; set; }
 
     public List<User>? Users { get; set; }
 }
\ No newline at end of file
diff --git a/BeReadyBackend/Models/Group.cs b/BeReadyBackend/Models/Group.cs
index f29d59a..b99d30d 100644
--- a/BeReadyBackend/Models/Group.cs
+++ b/BeReadyBackend/Models/Group.cs
@@ -5,11 +5,11 @@ namespace BeReadyBackend.Models;
 public class Group
 {
     [Key] public int Id { get; set; }
-    [Required, MaxLength(100)] public string? Label { get; set; }
+    [Required, Length(2, 100)] public string? Label { get; set; }
     [Required] public bool IsFinished { get; set; }
 
-    [Required] public string? Title { get; set; }
-    [Required] public string? Description { get; set; }
+    [Required, Length(2, 200)] public string? Title { get; set; }
+    [Required, Length(2, 200)] public string? Description { get; set; }
     [Required] public int Duration { get; set; }
     [Required] public DateTime CreationDate { get; set; }
 
diff --git a/BeReadyBackend/Models/Message.cs b/BeReadyBackend/Models/Message.cs
index 9ebe5d1..edee65a 100644
--- a/BeReadyBackend/Models/Message.cs
+++ b/BeReadyBackend/Models/Message.cs
@@ -5,7 +5,7 @@ namespace BeReadyBackend.Models;
 public class Message
 {
     [Key] public int Id { get; set; }
-    [Required] public string? Libelle { get; set; }
+    [Required, Length(2, 200)] public string? Libelle { get; set; }
     [Required] public DateTime SendDate { get; set; }
 
     public User? User { get; set; }
diff --git a/BeReadyBackend/Models/RandomChallenge.cs b/BeReadyBackend/Models/RandomChallenge.cs
index 6cef868..357fd06 100644
--- a/BeReadyBackend/Models/RandomChallenge.cs
+++ b/BeReadyBackend/Models/RandomChallenge.cs
@@ -5,9 +5,11 @@ namespace BeReadyBackend.Models;
 public class RandomChallenge
 {
     [Key] public int Id { get; set; }
-    [Required] public string? Libelle { get; set; }
+    [Required, Length(2, 200)] public string? Libelle { get; set; }
     [Required] public int Duration { get; set; }
     [Required] public bool IsAlreadyPast { get; set; }
+    
+    [Required] public DateTime? GeneratedAt { get; set; }
 
     public List<UserRandomChallenge>? UserRandomChallenges { get; set; }
 }
\ No newline at end of file
diff --git a/BeReadyBackend/Models/User.cs b/BeReadyBackend/Models/User.cs
index 79d4657..23dbf2f 100644
--- a/BeReadyBackend/Models/User.cs
+++ b/BeReadyBackend/Models/User.cs
@@ -5,9 +5,9 @@ namespace BeReadyBackend.Models;
 public class User
 {
     [Key] public int Id { get; set; }
-    [Required, MaxLength(50)] public string? FirstName { get; set; }
-    [Required, MaxLength(50)] public string? Name { get; set; }
-    [Required, MaxLength(50)] public string? Username { get; set; }
+    [Required, Length(2, 50)] public string? FirstName { get; set; }
+    [Required, Length(2, 50)] public string? Name { get; set; }
+    [Required, Length(2, 50)] public string? Username { get; set; }
     [Required, MaxLength(100)] public string? Email { get; set; }
     [Required] public DateTime CreationDate { get; set; }
     [Required, MaxLength(60)] public string? Password { get; set; }
diff --git a/BeReadyBackend/Validators/Achievements/GetAchievementDtoValidator.cs b/BeReadyBackend/Validators/Achievements/GetAchievementDtoValidator.cs
index da6df0d..ec9a653 100644
--- a/BeReadyBackend/Validators/Achievements/GetAchievementDtoValidator.cs
+++ b/BeReadyBackend/Validators/Achievements/GetAchievementDtoValidator.cs
@@ -17,7 +17,7 @@ public class GetAchievementDtoValidator : Validator<GetAchievementDto>
             .WithMessage("Description must be specified")
             .MinimumLength(2)
             .WithMessage("Description must contain more than 2 characters")
-            .MaximumLength(200) // Add BDD
+            .MaximumLength(200)
             .WithMessage("Description cannot contain more than 200 characters");
         
         RuleFor(x => x.Label)
@@ -25,7 +25,7 @@ public class GetAchievementDtoValidator : Validator<GetAchievementDto>
             .WithMessage("Label must be specified")
             .MinimumLength(2)
             .WithMessage("Description must contain more than 2 characters")
-            .MaximumLength(200) // Add BDD
+            .MaximumLength(200)
             .WithMessage("Description cannot contain more than 200 characters");
     }
 }
\ No newline at end of file
diff --git a/BeReadyBackend/Validators/Designations/GetDesignationDtoValidator.cs b/BeReadyBackend/Validators/Designations/GetDesignationDtoValidator.cs
index 7b48147..d8721ba 100644
--- a/BeReadyBackend/Validators/Designations/GetDesignationDtoValidator.cs
+++ b/BeReadyBackend/Validators/Designations/GetDesignationDtoValidator.cs
@@ -17,7 +17,7 @@ public class GetDesignationDtoValidator : Validator<GetDesignationDto>
         RuleFor(x => x.Label)
             .NotEmpty()
             .WithMessage("Label cannot be empty")
-            .MaximumLength(100) // Add BDD
+            .MaximumLength(100)
             .WithMessage("Label cannot contain more than 100 characters")
             .MinimumLength(2)
             .WithMessage("Label must contain more than 2 characters");
diff --git a/BeReadyBackend/Validators/Groups/CreateGroupDtoValidator.cs b/BeReadyBackend/Validators/Groups/CreateGroupDtoValidator.cs
index ece2ebd..6be0d0d 100644
--- a/BeReadyBackend/Validators/Groups/CreateGroupDtoValidator.cs
+++ b/BeReadyBackend/Validators/Groups/CreateGroupDtoValidator.cs
@@ -11,15 +11,15 @@ public class CreateGroupDtoValidator : Validator<CreateGroupDto>
         RuleFor(x => x.Label)
             .NotEmpty()
             .WithMessage("Label cannot be empty")
-            .MaximumLength(50) // Add BDD
-            .WithMessage("Label cannot exceed 50 characters")
+            .MaximumLength(100)
+            .WithMessage("Label cannot exceed 100 characters")
             .MinimumLength(2)
             .WithMessage("Label must exceed 2 characters");
 
         RuleFor(x => x.Title)
             .NotEmpty()
             .WithMessage("Title cannot be empty")
-            .MaximumLength(50) // Add BDD
+            .MaximumLength(50)
             .WithMessage("Title cannot exceed 50 characters")
             .MinimumLength(2)
             .WithMessage("Title must exceed 2 characters");
@@ -27,8 +27,8 @@ public class CreateGroupDtoValidator : Validator<CreateGroupDto>
         RuleFor(x => x.Description)
             .NotEmpty()
             .WithMessage("Description cannot be empty")
-            .MaximumLength(200) // Add BDD
-            .WithMessage("Description cannot exceed 50 characters")
+            .MaximumLength(200)
+            .WithMessage("Description cannot exceed 200 characters")
             .MinimumLength(2)
             .WithMessage("Description must exceed 2 characters");
         
diff --git a/BeReadyBackend/Validators/Groups/GetGroupDetailsDtoValidator.cs b/BeReadyBackend/Validators/Groups/GetGroupDetailsDtoValidator.cs
index 1486436..7dbc813 100644
--- a/BeReadyBackend/Validators/Groups/GetGroupDetailsDtoValidator.cs
+++ b/BeReadyBackend/Validators/Groups/GetGroupDetailsDtoValidator.cs
@@ -17,8 +17,8 @@ public class GetGroupDetailsDtoValidator : Validator<GetGroupDetailsDto>
         RuleFor(x => x.Label)
             .NotEmpty()
             .WithMessage("Label cannot be empty")
-            .MaximumLength(50) // Add BDD
-            .WithMessage("Label cannot exceed 50 characters")
+            .MaximumLength(100)
+            .WithMessage("Label cannot exceed 100 characters")
             .MinimumLength(2)
             .WithMessage("Label must exceed 2 characters");
 
@@ -29,7 +29,7 @@ public class GetGroupDetailsDtoValidator : Validator<GetGroupDetailsDto>
         RuleFor(x => x.Title)
             .NotEmpty()
             .WithMessage("Title cannot be empty")
-            .MaximumLength(100) // Add BDD
+            .MaximumLength(50)
             .WithMessage("Title cannot exceed 50 characters")
             .MinimumLength(2)
             .WithMessage("Title must exceed 2 characters");
@@ -37,7 +37,7 @@ public class GetGroupDetailsDtoValidator : Validator<GetGroupDetailsDto>
         RuleFor(x => x.Description)
             .NotEmpty()
             .WithMessage("Description cannot be empty")
-            .MaximumLength(200) // Add BDD
+            .MaximumLength(200)
             .WithMessage("Description cannot exceed 50 characters")
             .MinimumLength(2)
             .WithMessage("Description must exceed 2 characters");
diff --git a/BeReadyBackend/Validators/Groups/GetGroupDtoValidator.cs b/BeReadyBackend/Validators/Groups/GetGroupDtoValidator.cs
index 8b3c761..a3427e6 100644
--- a/BeReadyBackend/Validators/Groups/GetGroupDtoValidator.cs
+++ b/BeReadyBackend/Validators/Groups/GetGroupDtoValidator.cs
@@ -17,8 +17,8 @@ public class GetGroupDtoValidator : Validator<GetGroupDto>
         RuleFor(x => x.Label)
             .NotEmpty()
             .WithMessage("Label cannot be empty")
-            .MaximumLength(50) // Add BDD
-            .WithMessage("Label cannot exceed 50 characters")
+            .MaximumLength(100)
+            .WithMessage("Label cannot exceed 100 characters")
             .MinimumLength(2)
             .WithMessage("Label must exceed 2 characters");
 
diff --git a/BeReadyBackend/Validators/Messages/CreateMessageDtoValidator.cs b/BeReadyBackend/Validators/Messages/CreateMessageDtoValidator.cs
index 2d29f8f..3eb560c 100644
--- a/BeReadyBackend/Validators/Messages/CreateMessageDtoValidator.cs
+++ b/BeReadyBackend/Validators/Messages/CreateMessageDtoValidator.cs
@@ -11,12 +11,12 @@ public class CreateMessageDtoValidator : Validator<CreateMessageDto>
         RuleFor(x => x.Libelle)
             .NotEmpty()
             .WithMessage("Libelle is required")
-            .MaximumLength(200) //Add BDD
+            .MaximumLength(200)
             .WithMessage("Libelle cannot exceed 200 characters")
             .MinimumLength(2)
             .WithMessage("Libelle must exceed 2 characters");
 
-        RuleFor(x => x.SendDate) //Edit BDD
+        RuleFor(x => x.SendDate)
             .NotEmpty()
             .WithMessage("SendDate is required");
 
diff --git a/BeReadyBackend/Validators/RandomChallenges/GetRandomChallengeDtoValidator.cs b/BeReadyBackend/Validators/RandomChallenges/GetRandomChallengeDtoValidator.cs
index b6b145d..472c4a4 100644
--- a/BeReadyBackend/Validators/RandomChallenges/GetRandomChallengeDtoValidator.cs
+++ b/BeReadyBackend/Validators/RandomChallenges/GetRandomChallengeDtoValidator.cs
@@ -11,7 +11,7 @@ public class GetRandomChallengeDtoValidator : Validator<GetRandomChallengeDto>
         RuleFor(x => x.Libelle)
             .NotEmpty()
             .WithMessage("Libelle is required")
-            .MaximumLength(200) //Add BDD
+            .MaximumLength(200)
             .WithMessage("Libelle cannot exceed 200 characters")
             .MinimumLength(2)
             .WithMessage("Libelle must exceed 2 characters");
diff --git a/BeReadyBackend/Validators/Users/GetUserChallengeDtoValidator.cs b/BeReadyBackend/Validators/Users/GetUserChallengeDtoValidator.cs
index c31a0d8..91e5bb4 100644
--- a/BeReadyBackend/Validators/Users/GetUserChallengeDtoValidator.cs
+++ b/BeReadyBackend/Validators/Users/GetUserChallengeDtoValidator.cs
@@ -11,8 +11,8 @@ public class GetUserChallengeDtoValidator : Validator<GetUserChallengeDto>
         RuleFor(x => x.ChallengeTitle)
             .NotEmpty()
             .WithMessage("Challenge Title is required")
-            .MaximumLength(100)
-            .WithMessage("Challenge Title cannot exceed 100 characters");
+            .MaximumLength(200)
+            .WithMessage("Challenge Title cannot exceed 200 characters");
         
         RuleFor(x => x.ChallengeDescription)
             .NotEmpty()
diff --git a/BeReadyBackend/Validators/Users/PatchUserPasswordDtoValidator.cs b/BeReadyBackend/Validators/Users/PatchUserPasswordDtoValidator.cs
index d124d65..e944904 100644
--- a/BeReadyBackend/Validators/Users/PatchUserPasswordDtoValidator.cs
+++ b/BeReadyBackend/Validators/Users/PatchUserPasswordDtoValidator.cs
@@ -11,8 +11,6 @@ public class PatchUserPasswordDtoValidator : Validator<PatchUserPasswordDto>
         RuleFor(x => x.Password)
             .NotEmpty()
             .WithMessage("Password is required")
-            .MaximumLength(60)
-            .WithMessage("Password cannot exceed 60 characters") 
             .MinimumLength(12)
             .WithMessage("Password must exceed 12 characters");
     }