Customer tariff plans and services are directly linked with payments in BILLmanager. No need to check manually if anyone hasn’t paid for a new order or stopped using your services, and keep track who has paid for the subscription.
BILLmanager uses service statuses to control it. Paid services can be activated and prolonged automatically. Unpaid services can be suspended and deleted. These statuses are not abstract. For example, if a client hasn’t paid for his/her VPS, BILLmanager will send information about it to the virtualization control panel. This control panel will suspend the virtual machine and then delete it to release more resources for new clients.
* If post-payment is activated, services would always be active while a provider would have to monitor payments manually.
Learn more in documentation How to sell services via BILLmanager.