


Open an Office app and sign in with your Microsoft account.Do it for all Microsoft Office apps (Excel, PowerPoint, Outlook, Word, etc.).Remove all connected Office services from your profile ( File -> Account -> Connected Services -> Remove Services).You can finish a previous user session by signing them out of an Office app or Windows (using the Sign Out button on the top right of your Office app or in the menu: File -> Account).The best solution is to sign out the previous user from all Office 365 (Microsoft 365) apps. The matter is that Microsoft 365 supports only one session for users of the same organization.

The issue occurs if a user from the same organization (tenant) your Microsoft 365 account belongs to is signed in on this computer or to an Office app (Word, Excel, Outlook, etc.). Sorry, another account from your organization is already signed in on this computer.
