Hello, I have done some reading through the paypal developers tools and can't find the specific section on what I need, though I am sure I am just missing something obvious. In the site I'm creating, users pay $X to get credits at an equivalent value (10 = $10), then use these to purchase the features within the site. What I want to set up is upon the successful payment to my client, the credits are automatically placed in the users account (the amount of credits are stored in a database value). Thanks for any help, even just a link to the appropriate page would be greatly appreciated.