Introduction:

When you send a verification request to someone's Microsoft Authenticator app, you may see an error message in MSP Process saying that the user has a different "Default Sign-in Method" specified.

In this situation, the user will not receive your verification request as a push notification in their Microsoft Authenticator app.

The goal of this KB article is to show you where in M365 you can go to modify a user's default sign-in method.

Steps to resolving the Error:

1. Login to the Microsoft Entra admin center (https://entra.microsoft.com/?l=en.en-us) as a user who has the rights need to modify someone's identity in Entra
2. Navigate to Protection -> Authentication methods
   • 
     
3. Under the Monitoring section, click on User Registration Details
   • 
     
4. Click on the user who's preferred authentication method you want to modify
5. In the MFA Status card, click on Manage MFA Authentication methods
   • 
     
6. Click on the pencil icon that allows you do edit the Default sign-in method
   • 
7. Choose Microsoft Authenticator from the drop-down menu
   • 
8. Click the Save button, and you're done!