diff --git a/src/CSharp/EasyMicroservices.SupportsMicroservice.Database/Database/Contexts/SupportContext.cs b/src/CSharp/EasyMicroservices.SupportsMicroservice.Database/Database/Contexts/SupportContext.cs
index 25f3eea..4ef92e8 100644
--- a/src/CSharp/EasyMicroservices.SupportsMicroservice.Database/Database/Contexts/SupportContext.cs
+++ b/src/CSharp/EasyMicroservices.SupportsMicroservice.Database/Database/Contexts/SupportContext.cs
@@ -60,7 +60,6 @@ protected override void OnModelCreating(ModelBuilder modelBuilder)
                 .WithMany(b => b.TicketDepartments)
                 .HasForeignKey(bc => bc.DepartmentId);
 
-                model.HasIndex(bc => bc.TicketId).IsUnique();
 
             });
             modelBuilder.Entity<TicketSupportTimeHistoryEntity>(model =>
@@ -79,7 +78,6 @@ protected override void OnModelCreating(ModelBuilder modelBuilder)
                 .WithMany(b => b.TicketAssigns)
                 .HasForeignKey(bc => bc.TicketId);
 
-                model.HasIndex(bc => bc.TicketId).IsUnique();
             });
             modelBuilder.Entity<TicketDiscussionEntity>(model =>
             {
diff --git a/src/CSharp/EasyMicroservices.SupportsMicroservice.Database/Migrations/20231128153829_remove_isunique.Designer.cs b/src/CSharp/EasyMicroservices.SupportsMicroservice.Database/Migrations/20231128153829_remove_isunique.Designer.cs
new file mode 100644
index 0000000..1effacf
--- /dev/null
+++ b/src/CSharp/EasyMicroservices.SupportsMicroservice.Database/Migrations/20231128153829_remove_isunique.Designer.cs
@@ -0,0 +1,441 @@
+// <auto-generated />
+using System;
+using EasyMicroservices.SupportsMicroservice.Database.Contexts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace EasyMicroservices.SupportsMicroservice.Migrations
+{
+    [DbContext(typeof(SupportContext))]
+    [Migration("20231128153829_remove_isunique")]
+    partial class remove_isunique
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.14")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("EasyMicroservices.SupportsMicroservice.Database.Entities.DepartmentEntity", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<long>("Id"));
+
+                    b.Property<DateTime>("CreationDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DeletedDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("bit");
+
+                    b.Property<DateTime?>("ModificationDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<string>("Title")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("UniqueIdentity")
+                        .HasColumnType("nvarchar(450)")
+                        .UseCollation("SQL_Latin1_General_CP1_CS_AS");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CreationDateTime");
+
+                    b.HasIndex("DeletedDateTime");
+
+                    b.HasIndex("IsDeleted");
+
+                    b.HasIndex("ModificationDateTime");
+
+                    b.HasIndex("UniqueIdentity");
+
+                    b.ToTable("Departmants");
+                });
+
+            modelBuilder.Entity("EasyMicroservices.SupportsMicroservice.Database.Entities.TicketAssignEntity", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<long>("Id"));
+
+                    b.Property<DateTime>("CreationDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DeletedDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("bit");
+
+                    b.Property<DateTime?>("ModificationDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<long>("TicketId")
+                        .HasColumnType("bigint");
+
+                    b.Property<string>("UniqueIdentity")
+                        .HasColumnType("nvarchar(450)")
+                        .UseCollation("SQL_Latin1_General_CP1_CS_AS");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CreationDateTime");
+
+                    b.HasIndex("DeletedDateTime");
+
+                    b.HasIndex("IsDeleted");
+
+                    b.HasIndex("ModificationDateTime");
+
+                    b.HasIndex("TicketId");
+
+                    b.HasIndex("UniqueIdentity");
+
+                    b.ToTable("TicketAssigns");
+                });
+
+            modelBuilder.Entity("EasyMicroservices.SupportsMicroservice.Database.Entities.TicketDepartmentEntity", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<long>("Id"));
+
+                    b.Property<DateTime>("CreationDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DeletedDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<long>("DepartmentId")
+                        .HasColumnType("bigint");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("bit");
+
+                    b.Property<DateTime?>("ModificationDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<long>("TicketId")
+                        .HasColumnType("bigint");
+
+                    b.Property<string>("UniqueIdentity")
+                        .HasColumnType("nvarchar(450)")
+                        .UseCollation("SQL_Latin1_General_CP1_CS_AS");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CreationDateTime");
+
+                    b.HasIndex("DeletedDateTime");
+
+                    b.HasIndex("DepartmentId");
+
+                    b.HasIndex("IsDeleted");
+
+                    b.HasIndex("ModificationDateTime");
+
+                    b.HasIndex("TicketId");
+
+                    b.HasIndex("UniqueIdentity");
+
+                    b.ToTable("TicketDepartments");
+                });
+
+            modelBuilder.Entity("EasyMicroservices.SupportsMicroservice.Database.Entities.TicketDiscussionEntity", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<long>("Id"));
+
+                    b.Property<string>("Content")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("CreationDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DeletedDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("bit");
+
+                    b.Property<DateTime?>("ModificationDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<long>("TicketId")
+                        .HasColumnType("bigint");
+
+                    b.Property<string>("UniqueIdentity")
+                        .HasColumnType("nvarchar(450)")
+                        .UseCollation("SQL_Latin1_General_CP1_CS_AS");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CreationDateTime");
+
+                    b.HasIndex("DeletedDateTime");
+
+                    b.HasIndex("IsDeleted");
+
+                    b.HasIndex("ModificationDateTime");
+
+                    b.HasIndex("TicketId");
+
+                    b.HasIndex("UniqueIdentity");
+
+                    b.ToTable("TicketDiscussions");
+                });
+
+            modelBuilder.Entity("EasyMicroservices.SupportsMicroservice.Database.Entities.TicketEntity", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<long>("Id"));
+
+                    b.Property<DateTime>("CreationDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DeletedDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("bit");
+
+                    b.Property<DateTime?>("ModificationDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int?>("Priority")
+                        .HasColumnType("int");
+
+                    b.Property<int>("SensitivityStatus")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<string>("Title")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("UniqueIdentity")
+                        .HasColumnType("nvarchar(450)")
+                        .UseCollation("SQL_Latin1_General_CP1_CS_AS");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CreationDateTime");
+
+                    b.HasIndex("DeletedDateTime");
+
+                    b.HasIndex("IsDeleted");
+
+                    b.HasIndex("ModificationDateTime");
+
+                    b.HasIndex("UniqueIdentity");
+
+                    b.ToTable("Tickets");
+                });
+
+            modelBuilder.Entity("EasyMicroservices.SupportsMicroservice.Database.Entities.TicketHistoryEntity", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<long>("Id"));
+
+                    b.Property<string>("Content")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("CreationDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DeletedDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("bit");
+
+                    b.Property<DateTime?>("ModificationDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<long>("TicketId")
+                        .HasColumnType("bigint");
+
+                    b.Property<string>("UniqueIdentity")
+                        .HasColumnType("nvarchar(450)")
+                        .UseCollation("SQL_Latin1_General_CP1_CS_AS");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CreationDateTime");
+
+                    b.HasIndex("DeletedDateTime");
+
+                    b.HasIndex("IsDeleted");
+
+                    b.HasIndex("ModificationDateTime");
+
+                    b.HasIndex("TicketId");
+
+                    b.HasIndex("UniqueIdentity");
+
+                    b.ToTable("TicketHistories");
+                });
+
+            modelBuilder.Entity("EasyMicroservices.SupportsMicroservice.Database.Entities.TicketSupportTimeHistoryEntity", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<long>("Id"));
+
+                    b.Property<DateTime>("CreationDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DeletedDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime>("EndDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("bit");
+
+                    b.Property<DateTime?>("ModificationDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime>("StartDateTime")
+                        .HasColumnType("datetime2");
+
+                    b.Property<long>("TicketId")
+                        .HasColumnType("bigint");
+
+                    b.Property<string>("UniqueIdentity")
+                        .HasColumnType("nvarchar(450)")
+                        .UseCollation("SQL_Latin1_General_CP1_CS_AS");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CreationDateTime");
+
+                    b.HasIndex("DeletedDateTime");
+
+                    b.HasIndex("IsDeleted");
+
+                    b.HasIndex("ModificationDateTime");
+
+                    b.HasIndex("TicketId");
+
+                    b.HasIndex("UniqueIdentity");
+
+                    b.ToTable("TicketSupportTimeHistories");
+                });
+
+            modelBuilder.Entity("EasyMicroservices.SupportsMicroservice.Database.Entities.TicketAssignEntity", b =>
+                {
+                    b.HasOne("EasyMicroservices.SupportsMicroservice.Database.Entities.TicketEntity", "Ticket")
+                        .WithMany("TicketAssigns")
+                        .HasForeignKey("TicketId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Ticket");
+                });
+
+            modelBuilder.Entity("EasyMicroservices.SupportsMicroservice.Database.Entities.TicketDepartmentEntity", b =>
+                {
+                    b.HasOne("EasyMicroservices.SupportsMicroservice.Database.Entities.DepartmentEntity", "Department")
+                        .WithMany("TicketDepartments")
+                        .HasForeignKey("DepartmentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("EasyMicroservices.SupportsMicroservice.Database.Entities.TicketEntity", "Ticket")
+                        .WithMany("TicketDepartments")
+                        .HasForeignKey("TicketId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Department");
+
+                    b.Navigation("Ticket");
+                });
+
+            modelBuilder.Entity("EasyMicroservices.SupportsMicroservice.Database.Entities.TicketDiscussionEntity", b =>
+                {
+                    b.HasOne("EasyMicroservices.SupportsMicroservice.Database.Entities.TicketEntity", "Ticket")
+                        .WithMany("TicketDiscussions")
+                        .HasForeignKey("TicketId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Ticket");
+                });
+
+            modelBuilder.Entity("EasyMicroservices.SupportsMicroservice.Database.Entities.TicketHistoryEntity", b =>
+                {
+                    b.HasOne("EasyMicroservices.SupportsMicroservice.Database.Entities.TicketEntity", "Ticket")
+                        .WithMany("TicketHistories")
+                        .HasForeignKey("TicketId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Ticket");
+                });
+
+            modelBuilder.Entity("EasyMicroservices.SupportsMicroservice.Database.Entities.TicketSupportTimeHistoryEntity", b =>
+                {
+                    b.HasOne("EasyMicroservices.SupportsMicroservice.Database.Entities.TicketEntity", "Ticket")
+                        .WithMany("TicketSupportTimeHistories")
+                        .HasForeignKey("TicketId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Ticket");
+                });
+
+            modelBuilder.Entity("EasyMicroservices.SupportsMicroservice.Database.Entities.DepartmentEntity", b =>
+                {
+                    b.Navigation("TicketDepartments");
+                });
+
+            modelBuilder.Entity("EasyMicroservices.SupportsMicroservice.Database.Entities.TicketEntity", b =>
+                {
+                    b.Navigation("TicketAssigns");
+
+                    b.Navigation("TicketDepartments");
+
+                    b.Navigation("TicketDiscussions");
+
+                    b.Navigation("TicketHistories");
+
+                    b.Navigation("TicketSupportTimeHistories");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/src/CSharp/EasyMicroservices.SupportsMicroservice.Database/Migrations/20231128153829_remove_isunique.cs b/src/CSharp/EasyMicroservices.SupportsMicroservice.Database/Migrations/20231128153829_remove_isunique.cs
new file mode 100644
index 0000000..80b9e83
--- /dev/null
+++ b/src/CSharp/EasyMicroservices.SupportsMicroservice.Database/Migrations/20231128153829_remove_isunique.cs
@@ -0,0 +1,56 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace EasyMicroservices.SupportsMicroservice.Migrations
+{
+    /// <inheritdoc />
+    public partial class remove_isunique : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropIndex(
+                name: "IX_TicketDepartments_TicketId",
+                table: "TicketDepartments");
+
+            migrationBuilder.DropIndex(
+                name: "IX_TicketAssigns_TicketId",
+                table: "TicketAssigns");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_TicketDepartments_TicketId",
+                table: "TicketDepartments",
+                column: "TicketId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_TicketAssigns_TicketId",
+                table: "TicketAssigns",
+                column: "TicketId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropIndex(
+                name: "IX_TicketDepartments_TicketId",
+                table: "TicketDepartments");
+
+            migrationBuilder.DropIndex(
+                name: "IX_TicketAssigns_TicketId",
+                table: "TicketAssigns");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_TicketDepartments_TicketId",
+                table: "TicketDepartments",
+                column: "TicketId",
+                unique: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_TicketAssigns_TicketId",
+                table: "TicketAssigns",
+                column: "TicketId",
+                unique: true);
+        }
+    }
+}
diff --git a/src/CSharp/EasyMicroservices.SupportsMicroservice.Database/Migrations/SupportContextModelSnapshot.cs b/src/CSharp/EasyMicroservices.SupportsMicroservice.Database/Migrations/SupportContextModelSnapshot.cs
index f62b5bb..0c5f351 100644
--- a/src/CSharp/EasyMicroservices.SupportsMicroservice.Database/Migrations/SupportContextModelSnapshot.cs
+++ b/src/CSharp/EasyMicroservices.SupportsMicroservice.Database/Migrations/SupportContextModelSnapshot.cs
@@ -101,8 +101,7 @@ protected override void BuildModel(ModelBuilder modelBuilder)
 
                     b.HasIndex("ModificationDateTime");
 
-                    b.HasIndex("TicketId")
-                        .IsUnique();
+                    b.HasIndex("TicketId");
 
                     b.HasIndex("UniqueIdentity");
 
@@ -151,8 +150,7 @@ protected override void BuildModel(ModelBuilder modelBuilder)
 
                     b.HasIndex("ModificationDateTime");
 
-                    b.HasIndex("TicketId")
-                        .IsUnique();
+                    b.HasIndex("TicketId");
 
                     b.HasIndex("UniqueIdentity");