Near as I can tell, Moodle is setup with IPN at the PayPal account level. That means a one-to-one relationship between the PayPal account and the Moodle instance.
We need to be able to create a customize button with the IPN URL in the button using notify_url when creating the button in PayPal.
Once I create the button in PayPal, where do I put the code in Moodle?