Troubleshooting CustomizationsWe support many different ways to customize your WHMCS installation, all of which have their own troubleshooting needs.
Troubleshooting HooksWhile developing your own custom code, you may need to test and troubleshoot your implementation of the WHMCS hook system.
Troubleshooting WHMCS API CallsDuring the development process, you may need to verify whether your API code is working correctly.