HR Admins can update or block user accounts individually or in bulk.
Disable User Account for a staff member
Open the Staff Profile of the staff member who should no longer be able to access your CiviHR site. Click on the 'Actions' button in the header. Click on the 'Disable User Account' button.
You can enable the User Account from the same place if required.
Disable User Accounts in bulk
Go to the Self Service Portal. Click on the cog icon, and then the 'Manage Users' link as highlighted:
Select the staff members whose User Accounts must be blocked. Go to the Actions dropdown and pick 'Block the selected users'. Click 'Execute'.