Add the Exposed Scope of the Resource Server to the API Permissions
Before proceeding, review the following information on the Microsoft website:
Quickstart: Configure an application to expose a web API
Add the Exposed Scope of the Resource Server to the API Permissions
1. In the Microsoft Azure portal, under the Manage menu, click API permissions.
2. Click Add a permission. A popup window opens with your resource server and its exposed scope.
3. In the Request API permissions popup window, select your resource server.
4. Under Select Permissions, select the exposed scopes of your resource server and click Add permission.
The Configured Permissions list is updated to show the added permissions.