Dear Dianne Royal
Thank you for posting your question in the Microsoft Q&A forum.
Based on your inquiry, we understand that you have considered how to add you work mail into Authentication app. We will be glad to assist you in this part.
Due to your authentication app issue, it might be relevant to your configuration MFA in your tenant. You can request your administrator to check the MFA Setting for users.
When it already setting, you can follow these steps to add your work mail in Authentication app:
- On your computer, go to the Security info page of your account dashboard.
- Select Add sign-in method.
- Choose Microsoft Authenticator from the dropdown and select Add.
- If you already have Authenticator installed on your phone, select Next to display a QR code.
- Open Authenticator on your phone and select the plus icon and select Add account.
- Select Work or school account then tap Scan a QR Code.
How to add your accounts to Microsoft Authenticator - Microsoft Support
To troubleshoot more effectively, could you provide a screenshot of the notification you receive when you add your work email in the Authentication app?
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