Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Happy New Year. #WONG YAO ZHENG#
Thanks for using Microsoft products and posting in the community.
I realize that you've encountered a problem of Authenticator.
As your question is related to Authenticator, Microsoft community mainly provides technical support for personal version of Office and Windows, it is difficult for us to give precise solution for Authenticator, please post in the Microsoft Authenticator - Microsoft Q&A forum to get more useful help. I hope you can understand.
Best regards.
Petter.Y - MSFT | Microsoft Community Support Specialist