Outcome: By the end of this guide, you will have a production-oriented configuration and a repeatable test checklist.
1. Install and activate
Copy the module to modules/addons/helposoft and activate it in WHMCS Addon Modules.
2. Create credentials
Generate a scoped HelpoSoft API key and configure the base URL, site key and synchronization options in WHMCS.
3. Map support behavior
Choose which ticket events, departments and client-area pages should connect to HelpoSoft.
4. Test both directions
Open a customer ticket, reply as an administrator, reply as the customer and close the ticket. Confirm each event appears once.