diff --git a/eventz-api/Eventz.Infrastructure/Configurations/CategoryConfiguration.cs b/eventz-api/Eventz.Infrastructure/Configurations/CategoryConfiguration.cs
index 082e0cf..002cadf 100644
--- a/eventz-api/Eventz.Infrastructure/Configurations/CategoryConfiguration.cs
+++ b/eventz-api/Eventz.Infrastructure/Configurations/CategoryConfiguration.cs
@@ -8,7 +8,10 @@ public  class CategoryConfiguration: IEntityTypeConfiguration<Category>
     {
             public void Configure(EntityTypeBuilder<Category> builder)
             {
+
                 builder.ToTable("Categories");
+                builder.Property("Name").IsRequired().HasMaxLength(100);
+                builder.Property("Description").IsRequired().HasMaxLength(10000);
                 builder.HasKey(x => x.Id);
             }
 
diff --git a/eventz-api/Eventz.Infrastructure/Configurations/EventConfiguration.cs b/eventz-api/Eventz.Infrastructure/Configurations/EventConfiguration.cs
index 41fa924..0a4ad04 100644
--- a/eventz-api/Eventz.Infrastructure/Configurations/EventConfiguration.cs
+++ b/eventz-api/Eventz.Infrastructure/Configurations/EventConfiguration.cs
@@ -24,6 +24,9 @@ public void Configure(EntityTypeBuilder<Event> builder)
             builder.Property(e => e.StartDate).IsRequired();
             builder.Property(e => e.EndDate)
                 .IsRequired();
+            builder.Property(e => e.IsPublic).IsRequired().HasDefaultValue(false);
+            builder.Property(e => e.CategoryId).IsRequired();
+            builder.Property(e => e.CategoryId).IsRequired();
 
             //relations
             builder.HasOne(e => e.Venue)
diff --git a/eventz-api/Eventz.Infrastructure/Configurations/EventRegistrationConfiguration.cs b/eventz-api/Eventz.Infrastructure/Configurations/EventRegistrationConfiguration.cs
index 9fbeb3b..b4a205f 100644
--- a/eventz-api/Eventz.Infrastructure/Configurations/EventRegistrationConfiguration.cs
+++ b/eventz-api/Eventz.Infrastructure/Configurations/EventRegistrationConfiguration.cs
@@ -17,6 +17,9 @@ public void Configure(EntityTypeBuilder<EventRegistration> builder)
             builder.HasIndex(er => new { er.UserId, er.EventId }).IsUnique();
             builder.Property(er => er.RegisteredAt)
            .HasDefaultValueSql("GETUTCDATE()");
+            builder.Property(er => er.UserId).IsRequired();
+            builder.Property(er => er.EventId).IsRequired();
+            builder.Property(er => er.CheckedIn).IsRequired().HasDefaultValue(false);
 
             builder.HasOne(er => er.Event)
                 .WithMany(e => e.Registrations)
diff --git a/eventz-api/Eventz.Infrastructure/Configurations/TicketConfiguration.cs b/eventz-api/Eventz.Infrastructure/Configurations/TicketConfiguration.cs
index 7b8be7a..d47fed5 100644
--- a/eventz-api/Eventz.Infrastructure/Configurations/TicketConfiguration.cs
+++ b/eventz-api/Eventz.Infrastructure/Configurations/TicketConfiguration.cs
@@ -15,6 +15,10 @@ public void Configure(EntityTypeBuilder<Ticket> builder)
         {
             builder.ToTable("Tickets");
             builder.HasKey(t => t.Id);
+            builder.Property(t => t.EventId).IsRequired();
+            builder.Property(t => t.Type).IsRequired();
+            builder.Property(t => t.Price).HasPrecision(18, 2);
+            builder.Property(t => t.Quantity).IsRequired();
             builder.HasOne(t => t.Event)
                 .WithMany(e => e.Tickets)
                 .HasForeignKey(t => t.EventId)
diff --git a/eventz-api/Eventz.Infrastructure/Configurations/UserConfiguration.cs b/eventz-api/Eventz.Infrastructure/Configurations/UserConfiguration.cs
index eb581cb..5607ba1 100644
--- a/eventz-api/Eventz.Infrastructure/Configurations/UserConfiguration.cs
+++ b/eventz-api/Eventz.Infrastructure/Configurations/UserConfiguration.cs
@@ -12,6 +12,9 @@ public void Configure (EntityTypeBuilder<User> builder)
 
             builder.HasKey(u => u.Id);
             builder.HasIndex(u => u.Email).IsUnique();
+            builder.Property(u => u.UserName).IsRequired().HasMaxLength(255);
+            builder.Property(u => u.Password).IsRequired().HasMaxLength(255);
+            builder.Property(u => u.Email).IsRequired().HasMaxLength(255);
             builder.Property(u => u.CreatedAt).HasDefaultValueSql("GETUTCDATE()");
 
         }
diff --git a/eventz-api/Eventz.Infrastructure/Configurations/VenueConfiguration.cs b/eventz-api/Eventz.Infrastructure/Configurations/VenueConfiguration.cs
index 24f25b4..4669b32 100644
--- a/eventz-api/Eventz.Infrastructure/Configurations/VenueConfiguration.cs
+++ b/eventz-api/Eventz.Infrastructure/Configurations/VenueConfiguration.cs
@@ -15,10 +15,10 @@ public void Configure(EntityTypeBuilder<Venue> builder)
         {
             builder.ToTable("Venues");
             builder.HasIndex(v => v.Id);
-            builder.HasMany(v => v.Events)
-                .WithOne(e => e.Venue)
-                .HasForeignKey(e => e.VenueId)
-                .OnDelete(DeleteBehavior.Restrict);
+            builder.Property(v => v.Name).IsRequired();
+            builder.Property(v => v.Address).IsRequired();
+            builder.Property(v => v.City).IsRequired();
+            builder.Property(v => v.Capacity).IsRequired();
         }
     }
 }