Domain Mapping & Pro Sites - Registering domain name through eNom


I am wondering what the process is when a user registers a domain name through the Domain Mapping eNom API and they purchase through the Pro Sites PayPal payment gateway?

I see that when you click BUY, it directs to my company's PayPal where the user can then make the purchase.

What are the actions that take place after the user has successfully paid?

Do they return back to their Pro Site?

Do they get directed to eNom to fill out the registrant details?

Since the money is now in MY PayPal account, do I have to pay and register the domain with eNom?

Ideally we would like the user's information to be entered as the Domain Registrant.

Any direction here would be much appreciated!

Thanks a bunch!