How to solve the problem that you need to log in repeatedly to install add-ins in Microsoft 365?

燕鹏 李 301 Reputation points

What I subscribed is Microsoft 365 Family, and have updated to the newest version.

My system is macOS Monterey 12.0.1

The error page is as follows. You can see that it requires login again although I have login.

The problem is not because of individual add-ins, but all office add-ins fail to install.

Office Development
Office Development
Office: A suite of Microsoft productivity software that supports common business tasks, including word processing, email, presentations, and data management and analysis.Development: The process of researching, productizing, and refining new or existing technologies.
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Word Management
Word Management
Word: A family of Microsoft word processing software products for creating web, email, and print documents.Management: The act or process of organizing, handling, directing or controlling something.
904 questions
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Accepted answer
  1. Emily Hua-MSFT 27,571 Reputation points

    Hi @94808387

    Welcome to Q&A forum ~

    Could you please test Office online apps? (Please note, Office Online requires OneDrive to store files, but using OneDrive in some regions requires a VPN connection.)
    Such as Word online, you can go to Insert tab > Add-ins group, click Add-ins button, and then check this issue again.

    • I also suggest you sign out your accout from Office apps, make sure all Office apps are closed.
    • Then go to Finder > Go > Utilities > Keychain Access.
      In Keychain Access, select the "Passwords" category on the left, find the crendentials related to Office and remove it.
      Go back to Office apps, sign your account back to have a check.

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