Hi Sophie M,
Thanks for reaching out to the Microsoft Q&A forum.
Correct me if I'm wrong, you have set up your Gmail as a 'work' account but now when I try and log into that Gmail account to view profile and account details it doesn't let you to log in with message that you not using a 'work or office' account.
I wanted to ask how you managed to set up your Gmail account as a Microsoft work account. Are you still able to sign in to Teams with it?
Also, if you're seeing an error like "You're not using a work or school account", it could be because you're trying to access Microsoft 365 services as a business user. Have you ever registered a Microsoft 365 business subscription (such as Basic or Standard) or created a tenant for your organization yet. You can check it here: Microsoft 365 Business Plans and Pricing | Microsoft 365
In addition, you can try logging in at https://login.live.com to see if the account is still usable. However, if you log in successfully, it means that Microsoft considers this account to be a personal account.
I hope this helps. Let me know if you have any further questions or update on this issue.
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