Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Dear Memo it,
Good day! Thank you for posting to Microsoft Community. We are happy to help you.
At first please kindly try to refer to this document to check the result: Set up the Microsoft Authenticator app as your verification method
If your problem persists, since your problem involves MFA, but we are focused on technical support for Microsoft 365 Business Exchange Online, which is not professional for your question, I recommend that you ask questions (based on) in Microsoft Q&A and using this tag( azure-ad-multi-factor-authentication) ,Technical engineers over there specialize in MFA issues, and experts will focus on queries to further assist you.
Your patience and cooperation will be highly appreciated. Hope you all the best!
Sincerely,
Kerry Chen | Microsoft Community Moderator
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