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 : Delete all Keychain entries relating to Office Uninstall Office and reinstall it via portal.office.com Install removal license tool Remove all Outlook accounts and add them (as suggested here https://answers.microsoft.com/en-us/msoffice/forum/all/word-and-excel-keep-prompting-for-activation-every/a055b722-574f-4dbc-974d-a8a336a119e7?messageId=c0435c83-9040-4180-8a22-d8f5850509c1 ) 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

To solve this follow the documented steps in this microsoft publication: https://learn.microsoft.com/en-us/office/troubleshoot/activation/another-account-already-signed-in TLDR: Open Keychain Access > Search for Office > delete all entries

I was able to fix this by going into a blank file in the online version of Excel and then clicking "Open in Desktop App". There were some errors that pop up initially and ultimately it asked me to sign in again and then it was fixed. So whatever confusion there was, initiating that online to desktop credential handshake reset it and everything started working as intended.

Intriguing reply! What was wrong? What was done to correct it? Others have faced this problem and your reply could help them. Thanks.

this did not work nor did resetting word etc.

Hi, No, the shared mailbox is still removed....

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

Anonymous

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 :

Delete all Keychain entries relating to Office
Uninstall Office and reinstall it via portal.office.com
Install removal license tool
Remove all Outlook accounts and add them (as suggested here https://answers.microsoft.com/en-us/msoffice/forum/all/word-and-excel-keep-prompting-for-activation-every/a055b722-574f-4dbc-974d-a8a336a119e7?messageId=c0435c83-9040-4180-8a22-d8f5850509c1)

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

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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Anonymous

2024-03-28T02:09:39+00:00

To solve this follow the documented steps in this microsoft publication: https://learn.microsoft.com/en-us/office/troubleshoot/activation/another-account-already-signed-in

TLDR: Open Keychain Access > Search for Office > delete all entries
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Anonymous

2023-07-04T00:09:28+00:00

I was able to fix this by going into a blank file in the online version of Excel and then clicking "Open in Desktop App". There were some errors that pop up initially and ultimately it asked me to sign in again and then it was fixed. So whatever confusion there was, initiating that online to desktop credential handshake reset it and everything started working as intended.
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Jim G 134.1K Reputation points MVP

2023-02-22T15:11:51+00:00

Intriguing reply! What was wrong? What was done to correct it? Others have faced this problem and your reply could help them.

Thanks.
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Anonymous

2023-02-17T17:52:07+00:00

this did not work nor did resetting word etc.
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Anonymous

2022-12-14T10:23:54+00:00

Hi,

No, the shared mailbox is still removed....
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