When I create a Web site as admin (but assigns it to a specific client user) the client access will not allow any changes on the Domain tab. Changes are accepted on any other tab of the domain, such as Redirect, Stats, and Backup, but nothing gets picked up when changed on the Domain tab. On the other hand, when the domain is created by logging on as the client, then it is possible to change settings on the Domain tab. This issue was reported to me since I recently moved a site for a client to one of my ISPConfig installations, and now he can't change the assigned PHP version. I tried doing the Resync (both Web and Clients/Resellers), but no luck. I also tried to reassign the domain to a different client and then back to the client that should be using it, after which I did the Resync, but the issue persists. I'm running ISPConfig 3.3.1p1 on Ubuntu 24.04.4 LTS with everything up-to-date, though I tested the same thing on a much older version (ISPConfig 3.2.9p1 on Centos 7.9) with presents the exact same issue. My apologies if this issue has already been debated and has a solution. I did search the forum for similar issues, but couldn't find any matching posts.
This feature is named client protection, to prevent customers from altering sites that were created by the admin and not by the client or by the admin using login as client. It is frequently used by web agencies that give their clients access to the control panel but must prevent the client from messing up website settings. You can turn it on and off under system > interface > main config.
