@Chris Sliga
Thank you for your time and patience on this!
I'm sorry to hear that your daughter factory reset your phone and that your Authenticator app wasn't backed up.
- Since this is your business account, do you have any other admins or users in your Azure AD tenant that can reset your authentication methods so you can log back into the Azure Portal?
- Do you have other users in your tenant? If so, they can add additional authentication methods to your Azure AD account so you can login without the need of using the Authenticator App.
To get back into your Azure AD tenant you can select the Forgot my password?
option during login.
1) Since you don't have access to the Authenticator App to verify your identity
, using the code generated within your app. You can select Use a different verification option
.
2) If you have other users in your tenant that can add authentication methods. You can verify your identity via Email
, or Phone/Text
. If you don't have access to any of these options, select I don't have any of these
.
3) If you have your Recovery codes, you can use them. Otherwise, you can select No
.
4) After selecting No, you'll be redirected to fill out the Recover your account form
to recover your Microsoft Account. For more info.

If you're using your onmicrosoft.com or tenant specific account, you can still select Forgot my password?
, which will take you other authentication methods to login. If none of the above options work, you'll have to reach out to our Azure Data Protection team for further assistance - (866-807-5850).

For future reference, I'd also recommend creating and managing an emergency access account in Azure AD, this will help prevent being accidentally locked out of your Azure Active Directory (Azure AD) organization because you can't sign in or activate another user's account as an administrator.
If you have any other questions, please let me know.
Thank you for your time and patience throughout this issue.
Please remember to "Accept Answer" if any answer/reply helped, so that others in the community facing similar issues can easily find the solution.