diff --git a/BeReadyBackend/Endpoints/Groups/StartVoteEndpoint.cs b/BeReadyBackend/Endpoints/Groups/StartVoteEndpoint.cs
index 1fab7ec..758bf53 100644
--- a/BeReadyBackend/Endpoints/Groups/StartVoteEndpoint.cs
+++ b/BeReadyBackend/Endpoints/Groups/StartVoteEndpoint.cs
@@ -31,24 +31,16 @@ public class StartVoteEndpoint(UserGroupsRepository userGroupsRepository, Groups
             await Send.NotFoundAsync(ct);
             return;
         }
-
-        UserGroup? userGroup = group.UserGroups!.FirstOrDefault(x => x.UserId == userService.GetUserIdFromToken());
-
-        if (userGroup?.Grade != "Admin")
-        {
-            await Send.StringAsync("Vous ne pouvez pas lancer le vote", 400, cancellation: ct);
-            return;
-        }
-
+        
         if (group.IsFinished)
         {
             await Send.StringAsync("Le défi est terminé", 400, cancellation: ct);
             return;
         }
 
-        if (group.CreationDate.AddHours(group.Duration) > DateTime.Now)
+        if (group.CreationDate.AddHours(group.Duration) > DateTime.Now || !group.IsFinished)
         {
-            await Send.StringAsync("Le défi n'est pas terminé", 400, cancellation: ct);
+            await Send.StringAsync("Le défi n'est pas encore terminé", 400, cancellation: ct);
             return;
         }
 
diff --git a/BeReadyBackend/Migrations/20260323141022_AddedMissingFieldsOnGroup.Designer.cs b/BeReadyBackend/Migrations/20260323141022_AddedMissingFieldsOnGroup.Designer.cs
new file mode 100644
index 0000000..9d66fe7
--- /dev/null
+++ b/BeReadyBackend/Migrations/20260323141022_AddedMissingFieldsOnGroup.Designer.cs
@@ -0,0 +1,448 @@
+// <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("20260323141022_AddedMissingFieldsOnGroup")]
+    partial class AddedMissingFieldsOnGroup
+    {
+        /// <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<DateTime?>("StartedVote")
+                        .HasColumnType("datetime2");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int?>("VoteDuration")
+                        .HasColumnType("int");
+
+                    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/20260323141022_AddedMissingFieldsOnGroup.cs b/BeReadyBackend/Migrations/20260323141022_AddedMissingFieldsOnGroup.cs
new file mode 100644
index 0000000..19713c9
--- /dev/null
+++ b/BeReadyBackend/Migrations/20260323141022_AddedMissingFieldsOnGroup.cs
@@ -0,0 +1,39 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace BeReadyBackend.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddedMissingFieldsOnGroup : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<DateTime>(
+                name: "StartedVote",
+                table: "Groups",
+                type: "datetime2",
+                nullable: true);
+
+            migrationBuilder.AddColumn<int>(
+                name: "VoteDuration",
+                table: "Groups",
+                type: "int",
+                nullable: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "StartedVote",
+                table: "Groups");
+
+            migrationBuilder.DropColumn(
+                name: "VoteDuration",
+                table: "Groups");
+        }
+    }
+}
diff --git a/BeReadyBackend/Migrations/BeReadyDbContextModelSnapshot.cs b/BeReadyBackend/Migrations/BeReadyDbContextModelSnapshot.cs
index ee291d5..6cad47e 100644
--- a/BeReadyBackend/Migrations/BeReadyDbContextModelSnapshot.cs
+++ b/BeReadyBackend/Migrations/BeReadyDbContextModelSnapshot.cs
@@ -85,10 +85,16 @@ namespace BeReadyBackend.Migrations
                         .IsRequired()
                         .HasColumnType("nvarchar(max)");
 
+                    b.Property<DateTime?>("StartedVote")
+                        .HasColumnType("datetime2");
+
                     b.Property<string>("Title")
                         .IsRequired()
                         .HasColumnType("nvarchar(max)");
 
+                    b.Property<int?>("VoteDuration")
+                        .HasColumnType("int");
+
                     b.HasKey("Id");
 
                     b.ToTable("Groups");
diff --git a/BeReadyBackend/Models/Group.cs b/BeReadyBackend/Models/Group.cs
index b99d30d..25a6479 100644
--- a/BeReadyBackend/Models/Group.cs
+++ b/BeReadyBackend/Models/Group.cs
@@ -12,6 +12,8 @@ public class Group
     [Required, Length(2, 200)] public string? Description { get; set; }
     [Required] public int Duration { get; set; }
     [Required] public DateTime CreationDate { get; set; }
+    public DateTime? StartedVote { get; set; }
+    public int? VoteDuration { get; set; } = 3;
 
     public List<Message>? Messages { get; set; }
     public List<UserGroup>? UserGroups { get; set; }
diff --git a/obj/BookHive.EntityFrameworkCore.targets b/obj/BookHive.EntityFrameworkCore.targets
new file mode 100644
index 0000000..7d6485d
--- /dev/null
+++ b/obj/BookHive.EntityFrameworkCore.targets
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Target Name="GetEFProjectMetadata">
+    <MSBuild Condition=" '$(TargetFramework)' == '' "
+             Projects="$(MSBuildProjectFile)"
+             Targets="GetEFProjectMetadata"
+             Properties="TargetFramework=$(TargetFrameworks.Split(';')[0]);EFProjectMetadataFile=$(EFProjectMetadataFile)" />
+    <ItemGroup Condition=" '$(TargetFramework)' != '' ">
+      <EFProjectMetadata Include="AssemblyName: $(AssemblyName)" />
+      <EFProjectMetadata Include="Language: $(Language)" />
+      <EFProjectMetadata Include="OutputPath: $(OutputPath)" />
+      <EFProjectMetadata Include="Platform: $(Platform)" />
+      <EFProjectMetadata Include="PlatformTarget: $(PlatformTarget)" />
+      <EFProjectMetadata Include="ProjectAssetsFile: $(ProjectAssetsFile)" />
+      <EFProjectMetadata Include="ProjectDir: $(ProjectDir)" />
+      <EFProjectMetadata Include="RootNamespace: $(RootNamespace)" />
+      <EFProjectMetadata Include="RuntimeFrameworkVersion: $(RuntimeFrameworkVersion)" />
+      <EFProjectMetadata Include="TargetFileName: $(TargetFileName)" />
+      <EFProjectMetadata Include="TargetFrameworkMoniker: $(TargetFrameworkMoniker)" />
+      <EFProjectMetadata Include="Nullable: $(Nullable)" />
+      <EFProjectMetadata Include="TargetFramework: $(TargetFramework)" />
+      <EFProjectMetadata Include="TargetPlatformIdentifier: $(TargetPlatformIdentifier)" />
+    </ItemGroup>
+    <WriteLinesToFile Condition=" '$(TargetFramework)' != '' "
+                      File="$(EFProjectMetadataFile)"
+                      Lines="@(EFProjectMetadata)" />
+  </Target>
+</Project>