Hello Peter Kleintunte
Good day and thanks for contacting Microsoft community support
I'm sorry to hear that you're experiencing this issue with the Microsoft Authenticator app. This issue can occur when there is a problem with the synchronization between the app and your account. We need more information on the issue to better assist you.
- Does the issue persist when you sign-in your business account into a different device/mobile?
- I'm assuming you are the global admin. If you end user kindly contact your global admin to disable your account MFA and check if the issue
persists
While we wait for your valuable response. Kindly implement these initial steps to resolve the issue.
- Uninstall the Microsoft Authenticator app from your phone or use a different mobile.
- Reinstall the app from the Google Play Store or the App Store.
- Open the app and sign in with your Microsoft account.
- Follow the prompts to set up the app and enable multi-factor authentication.
- Once the app is set up, try signing in to your Outlook account again and enter the code from the Authenticator app.
FYI: Microsoft Authenticator App Not Sending Verification Code - Microsoft Q&A
If the issue still persists, please let me know and we can explore other potential solutions.
Please understand that our initial response may not always resolve the issue immediately. However, with your help and more detailed information, we can work together to find a solution.
Kindly repost if you need any further assistance from our side, we will be happy to help you further.
Sincerely,
Bertrand