I'm NEWBEE... My paypal IPN was not setup yet and a client sign on, and paid for products. The issue was "0$" was actually collected through paypal due I hadn't set up the IPN. It's set now. How can I get the invoice paid at this point? The "attempt payment" is not illuminated (which I'm not sure why???). Or shall I do it another way which would be seamless? Just trying to avoid the hassle of calling or emailing the client again.