MacOS "Another account from your organisation is already signed in on this device"

Anonymous
2022-11-09T07:38:32+00:00

I have an Office 365 subscription through my work, after recently updating Office, every time I now open Word, Excel or PowerPoint, I am prompted to sign in and activate the product. When I try to, I get this error “Another account from your organisation is already signed in on this device".

I have tried multiple suggestions as follow :

My Office apps are all up to date and I am running macOS Monterey Version 12.6.

Excel for Mac version is 16.68.

Thank you for your support.

[Moved from Subscription, account, billing/For Business/Accounts, groups management, and sign in]

EDIT : upgrading to macOS Ventura (13.0.1) didn't solve the issue

Microsoft 365 Insider | Excel | MacOS

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  1. Anonymous
    2023-07-06T07:53:00+00:00

    This is the only thing that helped me, after trying the suggested tool etc. without any success:

    https://learn.microsoft.com/en-us/office/troubleshoot/activation/another-account-already-signed-in basically close down all Office apps then run the command in terminal (this is on Mac, there's also steps for Windows):

    defaults write com.microsoft.Word ResetOneAuthCreds -bool YES

    After this, starting Word allowed me to login, and all other Office apps then worked too.

    Hope it helps someone.

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  2. Anonymous
    2024-05-23T07:17:44+00:00

    defaults write com.microsoft.Word ResetOneAuthCreds -bool YES

    Running this command fixed the issue for me

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  3. Anonymous
    2023-02-22T17:33:12+00:00

    It was a bit of mare in the end the steps were: deleting key chain, using licence removal tool and office reset tool. Restart computer.

    Then we made a new alias of my email login using the onmicrosoft login and made that the primary login. That allowed us to get slightly further so then we repeated the steps of deleting the key chain, using licence removal tool and office reset tool. Restart computer.

    That allowed us to login in with the alias so then we reverted my email to be the primary login and tra la! Hope this helps.

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  4. Anonymous
    2022-11-23T08:34:55+00:00

    Hey I am facing the same error. Please let me know if you figured out how to fix it!

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  5. Anonymous
    2022-12-13T18:42:20+00:00

    Hi,

    Did you ever figure out how to add a shared mailbox back? I'm running into the same issue but removing the shared mailbox isn't something we can do easily and live with day to day.

    Thanks!

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    3 people found this answer helpful.
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