A cloud-based identity and access management service for securing user authentication and resource access
Hi Tiaan,
Can you check if there is a latest version of Microsoft Authenticator installed on devices running on Android. For Android, the device that runs Microsoft Authenticator must be registered to an individual user.
Also is there a sign in log or any log for that device and user while attempting to authenticate? Try to escalate to the regional manager at Microsoft via your support channel if this is urgent.
Hope this helps. JS
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