This question may be related to a resolved thread.
I have the exact problem as the previous user, except, I am within license parameters… I have multiple sites set up for our company, but have a separate manager for each site.
If I limit access to only the site that I want them to access, they get the not authorized error.
I even tried the admin.php masking concept, but that doesn’t work either. When I login in, nothing happens. It just refreshes the login form.
I currently have 3 sites and the need to add 3 more, but I can’t have all the cross access. I just don’t trust all the users that much.