Hi Brett, When integrating WishList with a payment processor you have a few option. You probably used a plain paypal button integration option which sends the visitor back to the site to complete the registration but this approach is error prone as the customer can close the browser after paying on paypal.
when you use Wishlist with eStore it does everything through the PayPal IPN (Instant Payment Notification) feature. This also allows the integration with the affiliate software for commission awarding purpose. When you use the IPN feature everything starts to happen in the background as soon as the customer hits the “Pay Now” button on paypal.
So after a visitor pays for a membership they will receive two emails from eStore.
1) one for the standard purchase email
2) and a 2nd one which will contain a unique link to complete the registration
once the visitor clicks on this unique link they will be brought to the page where Wishlist will let them complete the membership.
Due to the limitation of integration option you can choose one of two methods (either through a plain PayPal button) or using eStore where everything happens in the background via emails.
You can customize the “Return URL” in eStore’s settings page so it redirect the customer to a “Thank You” page where you can put instructions like “You will receive an email with instructions bla bla bla”.