diff --git a/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/Controllers/ProductsController.cs b/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/Controllers/ProductsController.cs
index eb57fe1..cfbf2d9 100644
--- a/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/Controllers/ProductsController.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/Controllers/ProductsController.cs
@@ -1,4 +1,7 @@
-using Microsoft.AspNetCore.Mvc;
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+using Microsoft.AspNetCore.Mvc;
 using Microsoft.EntityFrameworkCore;
 using MultiTenancySample.DatabaseIsolationService.Entities;
 using MultiTenancySample.DatabaseIsolationService.EntityFrameworks;
@@ -23,5 +26,14 @@ namespace MultiTenancySample.DatabaseIsolationService.Controllers
 
             return Ok(products);
         }
+
+        [HttpPost]
+        public async Task<IActionResult> CreateProduct(Product product)
+        {
+            await _dbContext.AddAsync(product);
+            await _dbContext.SaveChangesAsync();
+
+            return Ok(product);
+        }
     }
 }
diff --git a/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/Entities/Product.cs b/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/Entities/Product.cs
index e21a15b..4cca264 100644
--- a/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/Entities/Product.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/Entities/Product.cs
@@ -1,4 +1,7 @@
-namespace MultiTenancySample.DatabaseIsolationService.Entities
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+namespace MultiTenancySample.DatabaseIsolationService.Entities
 {
     public class Product
     {
diff --git a/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/EntityFrameworks/DataSeeding.cs b/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/EntityFrameworks/DataSeeding.cs
index d4309f8..973b125 100644
--- a/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/EntityFrameworks/DataSeeding.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/EntityFrameworks/DataSeeding.cs
@@ -1,4 +1,7 @@
-using Microsoft.EntityFrameworkCore;
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+using Microsoft.EntityFrameworkCore;
 using MultiTenancySample.DatabaseIsolationService.Entities;
 using MultiTenancySample.ServiceDefaults;
 
diff --git a/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/EntityFrameworks/DatabaseIsolationServiceDbContext.cs b/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/EntityFrameworks/DatabaseIsolationServiceDbContext.cs
index cf32e91..364ddb5 100644
--- a/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/EntityFrameworks/DatabaseIsolationServiceDbContext.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/EntityFrameworks/DatabaseIsolationServiceDbContext.cs
@@ -1,4 +1,7 @@
-using Microsoft.EntityFrameworkCore;
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+using Microsoft.EntityFrameworkCore;
 using MultiTenancySample.DatabaseIsolationService.Entities;
 using MultiTenancySample.ServiceDefaults;
 
diff --git a/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/Program.cs b/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/Program.cs
index 43c67a6..4d5e8cf 100644
--- a/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/Program.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/Program.cs
@@ -1,3 +1,6 @@
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
 using MultiTenancySample.DatabaseIsolationService.EntityFrameworks;
 using MultiTenancySample.ServiceDefaults;
 
diff --git a/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Controllers/ProductsController.cs b/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Controllers/ProductsController.cs
index 44a9d8a..d90318e 100644
--- a/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Controllers/ProductsController.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Controllers/ProductsController.cs
@@ -1,4 +1,7 @@
-using Microsoft.AspNetCore.Mvc;
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+using Microsoft.AspNetCore.Mvc;
 using Microsoft.EntityFrameworkCore;
 using MultiTenancySample.FieldIsolationService.Entities;
 using MultiTenancySample.FieldIsolationService.EntityFrameworks;
@@ -23,5 +26,15 @@ namespace MultiTenancySample.FieldIsolationService.Controllers
 
             return Ok(products);
         }
+
+        [HttpPost]
+        public async Task<IActionResult> CreateProduct(Product product)
+        {
+            await _dbContext.AddAsync(product);
+
+            await _dbContext.SaveChangesAsync();
+
+            return Ok(product);
+        }
     }
 }
diff --git a/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Entities/IMultiTenant.cs b/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Entities/IMultiTenant.cs
index d08b099..d32de6d 100644
--- a/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Entities/IMultiTenant.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Entities/IMultiTenant.cs
@@ -1,4 +1,7 @@
-namespace MultiTenancySample.FieldIsolationService.Entities
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+namespace MultiTenancySample.FieldIsolationService.Entities
 {
     public interface IMultiTenant
     {
diff --git a/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Entities/Product.cs b/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Entities/Product.cs
index 9ce4077..fe92bbf 100644
--- a/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Entities/Product.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Entities/Product.cs
@@ -1,4 +1,7 @@
-using System.Text.Json.Serialization;
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+using System.Text.Json.Serialization;
 
 namespace MultiTenancySample.FieldIsolationService.Entities
 {
diff --git a/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/DataSeeding.cs b/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/DataSeeding.cs
index 284097d..ee5ec20 100644
--- a/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/DataSeeding.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/DataSeeding.cs
@@ -1,16 +1,19 @@
-using Microsoft.EntityFrameworkCore;
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+using Microsoft.EntityFrameworkCore;
 using MultiTenancySample.FieldIsolationService.Entities;
 using MultiTenancySample.ServiceDefaults;
 
 namespace MultiTenancySample.FieldIsolationService.EntityFrameworks
 {
-    public class DataSeeding(IDbContextFactory<FieldIsolationServiceDbContext> dbContext, ICurrentTenant currentTenant)
+    public class DataSeeding(IDbContextFactory<FieldIsolationServiceDbContext> dbContextFactory, ICurrentTenant currentTenant)
     {
         public async Task SeedDataAsync()
         {
             currentTenant.SetTenant("Tenant1");
 
-            FieldIsolationServiceDbContext dbContext1 = await dbContext.CreateDbContextAsync();
+            FieldIsolationServiceDbContext dbContext1 = await dbContextFactory.CreateDbContextAsync();
 
             if (await dbContext1.Database.EnsureCreatedAsync())
             {
@@ -25,7 +28,7 @@ namespace MultiTenancySample.FieldIsolationService.EntityFrameworks
 
             currentTenant.SetTenant("Tenant2");
 
-            FieldIsolationServiceDbContext dbContext2 = await dbContext.CreateDbContextAsync();
+            FieldIsolationServiceDbContext dbContext2 = await dbContextFactory.CreateDbContextAsync();
 
             if (await dbContext2.Set<Product>().IgnoreQueryFilters().CountAsync() < 6)
             {
diff --git a/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/EntityTypeBuilderQueryFilterExtensions.cs b/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/EntityTypeBuilderQueryFilterExtensions.cs
index c96dbf0..7d431b1 100644
--- a/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/EntityTypeBuilderQueryFilterExtensions.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/EntityTypeBuilderQueryFilterExtensions.cs
@@ -1,4 +1,7 @@
-using Microsoft.EntityFrameworkCore.Metadata.Builders;
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
 using Microsoft.EntityFrameworkCore.Query;
 using System.Linq.Expressions;
 
diff --git a/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/FieldIsolationServiceDbContext.cs b/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/FieldIsolationServiceDbContext.cs
index 46b209a..70ee0ff 100644
--- a/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/FieldIsolationServiceDbContext.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/FieldIsolationServiceDbContext.cs
@@ -1,4 +1,7 @@
-using Microsoft.EntityFrameworkCore;
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Metadata;
 using MultiTenancySample.FieldIsolationService.Entities;
 using MultiTenancySample.ServiceDefaults;
diff --git a/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/TenantSaveChangesInterceptor.cs b/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/TenantSaveChangesInterceptor.cs
index 20435fb..495366f 100644
--- a/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/TenantSaveChangesInterceptor.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/TenantSaveChangesInterceptor.cs
@@ -1,4 +1,7 @@
-using Microsoft.EntityFrameworkCore;
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.ChangeTracking;
 using Microsoft.EntityFrameworkCore.Diagnostics;
 using MultiTenancySample.FieldIsolationService.Entities;
diff --git a/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Program.cs b/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Program.cs
index 520be5e..19a01d2 100644
--- a/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Program.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Program.cs
@@ -1,3 +1,6 @@
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
 using Microsoft.EntityFrameworkCore;
 using MultiTenancySample.FieldIsolationService.EntityFrameworks;
 using MultiTenancySample.ServiceDefaults;
diff --git a/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/Controllers/ProductsController.cs b/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/Controllers/ProductsController.cs
index 2690a1b..c739b1c 100644
--- a/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/Controllers/ProductsController.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/Controllers/ProductsController.cs
@@ -1,4 +1,7 @@
-using Microsoft.AspNetCore.Mvc;
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+using Microsoft.AspNetCore.Mvc;
 using Microsoft.EntityFrameworkCore;
 using MultiTenancySample.SchemaIsolationService.Entities;
 using MultiTenancySample.SchemaIsolationService.EntityFrameworks;
diff --git a/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/Entities/Product.cs b/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/Entities/Product.cs
index 27c2859..a1ccfd7 100644
--- a/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/Entities/Product.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/Entities/Product.cs
@@ -1,4 +1,7 @@
-namespace MultiTenancySample.SchemaIsolationService.Entities
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+namespace MultiTenancySample.SchemaIsolationService.Entities
 {
     public class Product
     {
diff --git a/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/EntityFrameworks/DataSeeding.cs b/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/EntityFrameworks/DataSeeding.cs
index be8a4ec..9339c5a 100644
--- a/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/EntityFrameworks/DataSeeding.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/EntityFrameworks/DataSeeding.cs
@@ -1,4 +1,7 @@
-using Microsoft.EntityFrameworkCore;
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+using Microsoft.EntityFrameworkCore;
 using MultiTenancySample.SchemaIsolationService.Entities;
 using MultiTenancySample.ServiceDefaults;
 
diff --git a/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/EntityFrameworks/SchemaIsolationDbContext.cs b/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/EntityFrameworks/SchemaIsolationDbContext.cs
index 5a803a0..3d1586a 100644
--- a/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/EntityFrameworks/SchemaIsolationDbContext.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/EntityFrameworks/SchemaIsolationDbContext.cs
@@ -1,4 +1,7 @@
-using Microsoft.EntityFrameworkCore;
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+using Microsoft.EntityFrameworkCore;
 using MultiTenancySample.SchemaIsolationService.Entities;
 using MultiTenancySample.ServiceDefaults;
 
diff --git a/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/Program.cs b/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/Program.cs
index 5b1d09d..8753a7a 100644
--- a/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/Program.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/Program.cs
@@ -1,3 +1,6 @@
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
 using Microsoft.EntityFrameworkCore;
 using MultiTenancySample.SchemaIsolationService.EntityFrameworks;
 using MultiTenancySample.ServiceDefaults;
diff --git a/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/CurrentTenant.cs b/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/CurrentTenant.cs
index 108e6db..aed9971 100644
--- a/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/CurrentTenant.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/CurrentTenant.cs
@@ -1,4 +1,7 @@
-namespace MultiTenancySample.ServiceDefaults
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+namespace MultiTenancySample.ServiceDefaults
 {
     public class CurrentTenant : ICurrentTenant
     {
diff --git a/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/ICurrentTenant.cs b/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/ICurrentTenant.cs
index 4cda38a..c8cf1d6 100644
--- a/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/ICurrentTenant.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/ICurrentTenant.cs
@@ -1,4 +1,7 @@
-namespace MultiTenancySample.ServiceDefaults
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+namespace MultiTenancySample.ServiceDefaults
 {
     public interface ICurrentTenant
     {
diff --git a/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/ITenantIdProvider.cs b/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/ITenantIdProvider.cs
index 058b53e..663c2c4 100644
--- a/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/ITenantIdProvider.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/ITenantIdProvider.cs
@@ -1,4 +1,7 @@
-namespace MultiTenancySample.ServiceDefaults
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+namespace MultiTenancySample.ServiceDefaults
 {
     public interface ITenantIdProvider
     {
diff --git a/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/MultiTenancyExtensions.cs b/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/MultiTenancyExtensions.cs
index 2a6f0d1..2304010 100644
--- a/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/MultiTenancyExtensions.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/MultiTenancyExtensions.cs
@@ -1,4 +1,7 @@
-using Microsoft.AspNetCore.Builder;
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+using Microsoft.AspNetCore.Builder;
 using Microsoft.Extensions.DependencyInjection;
 
 namespace MultiTenancySample.ServiceDefaults
diff --git a/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/TenantIdProvider.cs b/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/TenantIdProvider.cs
index eda8382..5e30c73 100644
--- a/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/TenantIdProvider.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/TenantIdProvider.cs
@@ -1,4 +1,7 @@
-using Microsoft.AspNetCore.Http;
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+using Microsoft.AspNetCore.Http;
 
 namespace MultiTenancySample.ServiceDefaults
 {
@@ -10,7 +13,7 @@ namespace MultiTenancySample.ServiceDefaults
 
             const string tenantKey = "tenant";
 
-            if(httpContext.User.FindAll(tenantKey).Any())
+            if (httpContext.User.FindAll(tenantKey).Any())
             {
                 return httpContext.User.FindFirst(tenantKey)?.Value;
             }
diff --git a/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/TenantMiddleware.cs b/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/TenantMiddleware.cs
index 1df756a..df864b1 100644
--- a/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/TenantMiddleware.cs
+++ b/samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/TenantMiddleware.cs
@@ -1,4 +1,7 @@
-using Microsoft.AspNetCore.Http;
+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+using Microsoft.AspNetCore.Http;
 
 namespace MultiTenancySample.ServiceDefaults
 {