In the default ‘Sign In’ Page, we see an option to register or sign in using local account. The objective of this blog post is to find a way to hide those components and only allow a user to sign in using Azure AD Account
Navigate to “Setup’ section in Power Pages design Studio. Under Authentication – Identity providers, Disable the local Sign In Options
In the same page click on ‘Authentication Settings’ and turn off ‘External login’ and ‘Open Registration’ switch
To turn off redemption of an invitation, navigate to Site Setting and set the value false for the setting named as ‘Authentication/Registration/InvitationEnabled’
The final resulting authentication page will look like this.