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

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.

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.

6 pages in and Microsoft has yet to take this seriously.

I've tried all the tools and CLI strings and nothing changes. I just stumbled across another trick (that didn't work) which goes like this:

How do I reset the OneDrive app?

1. Quit OneDrive. (Select the cloud icon in the top tray, then select Settings > Quit OneDrive.)
2. Find OneDrive in your Applications folder.
3. Right-click OneDrive and select Show Package Contents.
4. Browse to the Contents > Resources folder.
5. Double-click ResetOneDriveApp.command (or ResetOneDriveAppStandalone.command, if you're using the standalone app).
6. Start OneDrive and finish the setup process.

I tried this after finding that restarting the OneDrive app brought me to a login page that listed a dozen of the tenants I've worked in over the years. Yes, I'm an IT consultant and I participate in many different tenants. Half of the tenants in the list I don't even have access to any longer. I have no idea what config file has a death grip on these potential logins. I've deleted the com.microsoft.OneDrive folders from the Library and run through the reset option above, and yet, OneDrive still has this list of potential logins embedded somewhere.

Among the list of logins is my (unlicensed) admin account for my primary tenant. I suspect the Office suite is seeing this list of logins in a config file and assumes I'm logged into (probably with a "stay logged in" option that I mistakenly accepted) my admin account and won't allow me to login with my regular user for the same tenant.

HOW CAN I LOG OUT OF A USER I HAVE NO IDEA HOW I LOGGED INTO???

Where is this login embedded in a config file, db file, or setting? Every bit of guidance in this thread appears to be partial. I'm glad some suggestions work for some, but no one has answered the bottom line question.

How do we remove any and all Microsoft logins from a MacOS 13 system??? Where is this login list I'm seeing in OneDrive being stored? It's a simple question. Where is it saving this list?

I went and signed out of all devices through the office profile and it has worked for me so far.

Did you try the suggestion from page 4 from HBTP? (https://learn.microsoft.com/en-us/office/troubleshoot/activation/another-account-already-signed-in), looks similar to what you tried above but might have a different result via the terminal. Worked on my problematic computer after all the other suggestions didn't