User activation fails for "Microsoft 365 Apps for business" after upn change

Markus Männl 41 Reputation points
2021-10-29T14:21:05.357+00:00

Hi there,

after a UPN change (only surname) in an Azure AD Hybrid Enviroment, the user activation of "Microsoft 365 Apps for business" fails.

After the user signs in (new User Profile) to an on-premise computer and opens Word or Excel, the app is in read-only mode, but the display account name is the new.
Log out and new in doesn`t help.

The change was few days ago.

Separate installations of teams and one-drive, on the other hand, do not cause any problems...

does anyone have a tip?

Thanks

Office Management
Office Management
Office: A suite of Microsoft productivity software that supports common business tasks, including word processing, email, presentations, and data management and analysis.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Viki Ji_MSFT 4,421 Reputation points
    2021-11-01T01:39:28.467+00:00

    Hi @Markus Männl ,
    Welcome to Q&A forum!

    Considering that there is no problem with OneDrive and Teams, I would suggest that you try to reset Microsoft 365 Apps activation state to check this issue. For more inforamtion, please refer to: Reset Microsoft 365 Apps for enterprise activation state.

    If the above does not work, please refer to the steps in the following official KB to check again.
    Unlicensed Product and activation errors in Office

    Hope the information is helpful to you. Any updates, pelase let me know.

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