Merge pull request #178468 from henrymbuguakiarie/msid-gtd-generic-endpoints

[msid][gtd] authentication-national-cloud (ADO-1648412)

Author: v-ccolin

articles/active-directory/develop/authentication-national-cloud.md

@@ -10,7 +10,7 @@ ms.service: active-directory
 ms.subservice: develop
 ms.topic: conceptual
 ms.workload: identity
-ms.date: 09/21/2021
+ms.date: 11/03/2021
 ms.author: negoe
 ms.reviewer: marsma, negoe,celested
 ms.custom: aaddev,references_regions
@@ -24,9 +24,9 @@ Including the global Azure cloud, Azure Active Directory (Azure AD) is deplo
 
 - Azure Government
 - Azure China 21Vianet
-- Azure Germany ([Closing on October 29, 2021](https://www.microsoft.com/cloud-platform/germany-cloud-regions)). Learn more about [Azure Germany migration](#azure-germany-microsoft-cloud-deutschland).
+- Azure Germany ([Closed on October 29, 2021](https://www.microsoft.com/cloud-platform/germany-cloud-regions)). Learn more about [Azure Germany migration](#azure-germany-microsoft-cloud-deutschland).
 
-Each cloud _instance_, the individual national clouds and the global Azure cloud, is a separate environment with its own endpoints. Cloud-specific endpoints include OAuth 2.0 access token and OpenID Connect ID token request endpoints, and URLs for app management and deployment, like the Azure portal.
+The individual national clouds and the global Azure cloud are cloud _instances_. Each cloud instance is separate from the others and has its own environment and _endpoints_. Cloud-specific endpoints include OAuth 2.0 access token and OpenID Connect ID token request endpoints, and URLs for app management and deployment, like the Azure portal.
 
 As you develop your apps, use the endpoints for the cloud instance where you'll deploy the application.
 
@@ -42,6 +42,18 @@ The following table lists the base URLs for the Azure AD endpoints used to regis
 | Azure portal China operated by 21Vianet | `https://portal.azure.cn`  |
 | Azure portal (global service)           | `https://portal.azure.com` |
 
+## Application endpoints
+
+You can find the authentication endpoints for your application in the Azure portal.
+
+1. Sign in to the <a href="https://portal.azure.com/" target="_blank">Azure portal</a>.
+1. Select **Azure Active Directory**.
+1. Under **Manage**, select **App registrations**, and then select **Endpoints** in the top menu.
+
+   The **Endpoints** page is displayed showing the authentication endpoints for the application registered in your Azure AD tenant.
+
+   Use the endpoint that matches the authentication protocol you're using in conjunction with the **Application (client) ID** to craft the authentication request specific to your application.
+
 ## Azure AD authentication endpoints
 
 All the national clouds authenticate users separately in each environment and have separate authentication endpoints.
@@ -63,17 +75,15 @@ For single-tenant applications, replace "common" in the previous URLs with your
 
 ## Azure Germany (Microsoft Cloud Deutschland)
 
-> [!WARNING]
-> Azure Germany (Microsoft Cloud Deutschland) will be [closed on October 29, 2021](https://www.microsoft.com/cloud-platform/germany-cloud-regions). Services and applications you choose _not_ to migrate to a region in global Azure before that date will become inaccessible.
-
 If you haven't migrated your application from Azure Germany, follow [Azure Active Directory information for the migration from Azure Germany](/microsoft-365/enterprise/ms-cloud-germany-transition-azure-ad) to get started.
 
 ## Microsoft Graph API
 
 To learn how to call the Microsoft Graph APIs in a national cloud environment, go to [Microsoft Graph in national cloud deployments](/graph/deployments).
 
-> [!IMPORTANT]
-> Certain services and features that are in specific regions of the global service might not be available in all of the national clouds. To find out what services are available, go to [Products available by region](https://azure.microsoft.com/global-infrastructure/services/?products=all&regions=usgov-non-regional,us-dod-central,us-dod-east,usgov-arizona,usgov-iowa,usgov-texas,usgov-virginia,china-non-regional,china-east,china-east-2,china-north,china-north-2,germany-non-regional,germany-central,germany-northeast).
+Some services and features in the global Azure cloud might be unavailable in other cloud instances like the national clouds.
+
+To find out which services and features are available in a given cloud instance, see [Products available by region](https://azure.microsoft.com/global-infrastructure/services/?products=all&regions=usgov-non-regional,us-dod-central,us-dod-east,usgov-arizona,usgov-iowa,usgov-texas,usgov-virginia,china-non-regional,china-east,china-east-2,china-north,china-north-2,germany-non-regional,germany-central,germany-northeast).
 
 To learn how to build an application by using the Microsoft identity platform, follow the [Single-page application (SPA) using auth code flow tutorial](tutorial-v2-angular-auth-code.md). Specifically, this app will sign in a user and get an access token to call the Microsoft Graph API.
 
@@ -85,4 +95,4 @@ National cloud documentation:
 
 - [Azure Government](../../azure-government/index.yml)
 - [Azure China 21Vianet](/azure/china/)
-- [Azure Germany (Closing on October 29, 2021)](../../germany/index.yml)
+- [Azure Germany (Closed on October 29, 2021)](../../germany/index.yml)