You can ban a user from a site to prevent that user from working at or logging into that site.
Under the Site Bans tab, click the Ban This User From Accessing A Site button.
Search for an account: Begin typing the name of the site from which the user will be banned.
Make ban effective immediately: Check this box to make the ban effective immediately.
Effective Start Date: Select a date as of which the user will be banned.
Click the Save button to Save the ban.
Note: Banning a user from a site removes the user from the schedule template and any scheduled shifts at the site.