Block a User from Signing In

    To block a user account from signing in, on the Personal information page, click the More actions (Button: More actions) drop-down in the upper-right corner, and select Block sign-in.

    In the Block sign-in window, you can choose to remove this user from the assigned groups, functional roles, and licenses if needed, and click Save. Click OK in the pop-up confirmation window.

    If a user has been blocked from signing in, a Sign-in blocked tag will appear next to the user account. The user blocked from signing in and accessing the services and data in the Microsoft 365 tenant.

    *Note: Once a user is blocked from signing in, the Start date and End date properties of the user account will be cleared.