A group of Microsoft Products and technologies used for sharing and managing content, knowledge, and applications.
If the colleague has a file checked out in a SharePoint library, a site or library administrator can use the Override Check Out permission to either check in the document or discard the check out.
Important: overriding someone else’s check-out can cause version conflicts if that person has local changes that were never uploaded. Those changes may need to be reconciled manually or by using comparison tools.
If the issue is that the person appears as signed in or active on a SharePoint page, the available context does not provide a way to manually sign out one specific user from a page. The documented sign-out control is idle session sign-out, which applies to the entire organization, not to a specific user.
To configure idle session sign-out for SharePoint and OneDrive:
- Go to Access control in the SharePoint admin center.
- Select Idle session sign-out.
- Turn on Sign out inactive users automatically.
- Choose when users are signed out and how much warning they receive.
- Select Save.
This setting applies organization-wide and cannot be set for specific sites or users.