Some events wish to include a basic invoice in their confirmation email to the attendees. You can do this by using some of the replaceable parameters noted in the Email Info article and some coding. Below is an example of something that you could use to include this in your attendees' confirmation email when leveraging the vConferenceOnline registration page for your event.
Pelase note that if you choose to use any HTML in any pages you should review our article on Custom Coding.