WHMCS, a popular client management software, lays a solid foundation for billing, automation, and client interaction. However, its core functionality can be further amplified with the strategic use of WHMCS modules. These targeted extensions act as functional building blocks, enabling you to automate repetitive tasks, bridge integration gaps, enhance client self-service, and craft bespoke client experiences. This presentation delves into the power of WHMCS modules, exploring their functionalities, selection criteria, and the potential benefits for your web hosting business