Implement the possibility to limit resellers' plan by the server administrator.
Now, service plans offered by the resellers can be modified by themselves and propose resources over reseller's service plan offered by Plesk's admin.
It would be good if the resources the resellers can offer in their service plan could not be "unlimited" anymore, but with the maximum caped to what's set by Plesk's administrator.
Thank you for your feature request. We will consider the possibility of its implementation if it becomes sufficiently popular and in demand.
Plesk Tech Support commented
For example, if I am 20G disk space, while creating a service plan with 10G storage, it will immediately show I have 10G more left (i.e. if overselling is not allowed). The same applies to traffic.
Also, there are also some similar requests regarding reseller resources