Hi,
I have a problem where we have several projects in our customer help center, not every customer is supposed to see all projects. We have set the customer access to: "Customers added to this service project only by agents and admins"
Still if you are a customer in one project you have access to all others as well. Even if you are removed as a customer from the one project you still have access. The only way is to remove the users completely from the site.
To hide a project from the help center we've had to remove customer access in the permission scheme, but this obviously makes it impossible for that project to have any customers accessing the project from the portal.
EDIT: after a more thorough search we realised it is only one project where customers still have access even after being removed, they dont have any ticket s in the portel nor are they participant on any issues.