CloudBlue Commerce allows you to limit the number of items that can be created in the system by resellers, subresellers, and domain owners. While user profiles provide an opportunity to control the number of resources per-user, service profiles are used to control resources on a per-service basis. The resources include traffic, diskspace, number of mailboxes and hosts, IP addresses, and so on.
You can limit the number of used resources by creating service templates based on resource types and selling them to resellers or customers. The resellers and customers become your subscribers and can use their resources accordingly to their subscriptions.