Hey all. I'm still a novice in my understanding of WHMCS and still trying to setup initial things.
One of them is the payment gateway. I already have a Paypal Business Account and use the automatic configuration setup to link my account. The gateway module now shows my CLIENT ID and Secret. What is the next step after this? The current problem is that invoices are not showing any Paypal payment button. However, modules like PayPal Website Payments Pro which use the older API based settings are working.
For reference I am using WHMCS 8.1.3.