diff --git a/docs/en/Migration-Guides/OpenIddict-Step-by-Step.md b/docs/en/Migration-Guides/OpenIddict-Step-by-Step.md
index 119057fe3c..53226a3079 100644
--- a/docs/en/Migration-Guides/OpenIddict-Step-by-Step.md
+++ b/docs/en/Migration-Guides/OpenIddict-Step-by-Step.md
@@ -204,126 +204,6 @@ for creating the host builder.
Replace **MyApplication** with your application name.
-## Application Contracts Layer (Commercial only)
-
-- In **MyApplication.Application.Contracts.csproj** replace **project reference**:
-
- ```csharp
-
- ```
-
- with
-
- ```csharp
-
- ```
-
-- In **MyApplicationApplicationContractsModule.cs** replace usings and **module dependencies**:
-
- ```csharp
- using Volo.Abp.IdentityServer;
- ...
- typeof(AbpIdentityServerApplicationContractsModule),
- ```
-
- with
-
- ```csharp
- using Volo.Abp.OpenIddict;
- ...
- typeof(AbpOpenIddictProApplicationContractsModule),
- ```
-
-## Application Layer (Commercial only)
-
-- In **MyApplication.Application.csproj** replace **project reference**:
-
- ```csharp
-
- ```
-
- with
-
- ```csharp
-
- ```
-
-- In **MyApplicationApplicationModule.cs** replace usings and **module dependencies**:
-
- ```csharp
- using Volo.Abp.IdentityServer;
- ...
- typeof(AbpIdentityServerApplicationModule),
- ```
-
- with
-
- ```csharp
- using Volo.Abp.OpenIddict;
- ...
- typeof(AbpOpenIddictProApplicationModule),
- ```
-
-## HttpApi Layer (Commercial only)
-
-- In **MyApplication.HttpApi.csproj** replace **project reference**:
-
- ```csharp
-
- ```
-
- with
-
- ```csharp
-
- ```
-
-- In **MyApplicationHttpApiModule.cs** replace usings and **module dependencies**:
-
- ```csharp
- using Volo.Abp.IdentityServer;
- ...
- typeof(AbpIdentityServerHttpApiModule),
- ```
-
- with
-
- ```csharp
- using Volo.Abp.OpenIddict;
- ...
- typeof(AbpOpenIddictProHttpApiModule),
- ```
-
-## HttpApi.Client Layer (Commercial only)
-
-- In **MyApplication.HttpApi.Client.csproj** replace **project reference**:
-
- ```csharp
-
- ```
-
- with
-
- ```csharp
-
- ```
-
-- In **MyApplicationHttpApiModule.cs** replace usings and **module dependencies**:
-
- ```csharp
- using Volo.Abp.IdentityServer;
- ...
- typeof(AbpIdentityServerHttpApiClientModule),
- ```
-
- with
-
- ```csharp
- using Volo.Abp.OpenIddict;
- ...
- typeof(AbpOpenIddictProHttpApiClientModule),
- ```
-
## UI Layer
- [Angular UI Migration](OpenIddict-Angular.md)