You can remove admin access when someone no longer needs it or when you end their profile. Use the same steps you follow to assign admin access.
⚠️CAUTION: Make sure another admin exists before you remove admin access.
Go to an employee's profile.
On the Employee tab, scroll down the page until you get to Access level.
Underneath the Access level field, click the dropdown and change it from Administrator to Employee.
Scroll down to the bottom, then click Save.
Go to your settings, then click Permissions, then Roles settings.
Check that the user no longer has the Employee administrator role assigned.
There could be other roles you want to unassign them from too.
Once you're happy with their permissions, if you're trying to terminate their profile, you can do this now.
📎NOTE: If they were the original main admin, you can terminate their profile, but you can't delete them.