Addon Configuration
1. Go to Setup > Addon Modules
Payment Gateway Configuration
If you wish to offer your customers a way to see the payment code in the payment process, you can activate the Payment Gateway module.
Notification System
The following notification triggers are available to be used with the WHMCS Notification System:
Payment Codes
EPC (SEPA QR)
e-Invoicing
ZUGFeRD / Factur-X
Statement Processing
SwissQR