Hi, 

I am trying to execute the following: 

Generate invoice > add payment button to the invoice with a Forte payment Gateway (already configured) > email invoice to a customer > customer pays directly through the invoice. 

I know how to create the invoice and populate the customer information. Im having difficulty integrating the payment function into the invoice so that it can be sent as an email. 

A tutorial or series of steps on how to do this would be fine. 

Thank you