Restrict new "Application Linking" feature with customer Opt-Out
The new Application Linking feature in the latest WHMCS is amazingly great.
Unfortunately its on or off for every single customer in WHMCS.
Some of my customers are resellers who get a hosting discount then bill and manage their own hosting clients. Currently this would allow their clients to see the wholesale billing and other clients under that reseller due to the connected authentication. This is a security risk. It bypasses the "contacts" access levels so that anyone with the cPanel login has access to the greater WHMCS client account.
There are other situations where opting-out a customer from application linking is preferred. e.g. Families or businesses with multiple hosting accounts where the designated cPanel level user should not have access to the WHMCS billing / ordering / WHMCS client area.
Suggest an "opt out" tick box for client account the admin can set in these situations.