How do I Create and Send an Invoice?
rsvpBOOK has 2 versions of the Admin Dashboard. Which one do you have?
Click the Create New Message Template button on the Email Wizard screen.
You will need to manually "schedule" the invoice to be sent by repeating the click of the Deliver to Registrants button.
ONLY registrants who have a balance due > $ 0.00 will automatically receive an invoice. There is no need to create special reports nor lists - if they owe you money, they are on the list.