WHMCS (Web Host Manager Complete Solution) is an optional add-on that can be purchased with our Reseller Hosting. It is a comprehensive client management panel that combines billing and support functions in a single platform. With WHMCS, you can streamline your business operations by automating billing, invoicing, provisioning, and customer support processes. While WHMCS is not included by default with our Reseller Hosting, you have the option to purchase and integrate it to enhance your reseller business operations.