Power Apps Portal: How to configure a single external identity provider?

If you want to use only one external identity provider (Azure AD) as the primary provider, you can configure “Azure Active Directory” as a default identity provider. Here are the steps

1. Log in to https://make.powerapps.com/
2. Choose your environment and select Apps
3. Select your portal application and click three dots.

4. Click Settings > Authentication settings

5. Select Azure Active Directory > Three Dots > Set as default (please see picture below)

When Azure AD is set as the default identity provider, Users signing in to the Portal aren’t redirected to the portal sign-in page. When they click the “Sign In” button, Portal signing in will be using Azure AD.

Want to know the in and out of how default identity configuration is working. Please feel free to read below.