Configure cross-selling recommendations to display product recommendations to customers based on their existing services and cart contents.
Configure the system cron job as part of the WHMCS installation process and make certain that its daily tasks always run successfully.
Configure billing based on use of resources like bandwidth or disk space. You can use this with cPanel & WHM, DirectAdmin, and Plesk.
Customize the time at which the system cron job runs and how often the system invokes it. The cron job must run at least once per day.
Duplicate the open-source Bank Transfer and Mail In Payment payment gateway modules and use them for creating your own custom modules.
Create a product to offer for sale. Products include many options for configuring pricing, billing, provisioning modules, and more.
Create a product group (a collection of related products that display together). Before you can create products, you must create a product group.