Main Causes
Backup not restored because the restore prompt was skipped or existing accounts were already present in the app.Platform mismatch when an iOS backup is used on Android or vice versa.Cloud sync incomplete even if backup shows as enabled.System conflicts such as disabled notifications, incorrect time settings, outdated app/OS, or restricted network conditions.No backup or missing source device, which requires resetting MFA from the Microsoft Security Info portal or through admin tools.
To resolve this issue, you need to restore your Authenticator backup or re-add the app as a sign-in method. The following steps explain how to do this in detail.
Solution: Recover or Re-add Microsoft Authenticator
The most reliable way to fix this problem is by restoring the Authenticator backup or reconfiguring the app on your new device. Follow the steps below:
Step 1: Enable Cloud Backup (Old Device)
Step 2: Restore Backup on New Device
Step 3: Re-add Authenticator if Backup Fails
For organization accounts, contact your admin if options are restricted. If none of these steps work, contact Microsoft Support for account recovery assistance.
