Hi, I have searched and searched through the Paypal documentation, but didn't find the solution ... however, I believe it is a common task. On my website people can buy an e-book. They click the 'Buy now' button with a hidden unique ID, successfully pays the amount, and auto return to my website. However, I need to find a way where the unique ID will be send from Paypal back to my server using a different (secret) URL after a successful payment, so I can update my database and automatically send an e-mail to the buyer with their e-book. Does anybody know the solution to this at Paypal? Best regards, Christophe
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