Where PayPal Stuff Is

Q. What are the PayPal real-time and sandbox payment Post and payment Get URL’s?
A. Sign up for merchant emails at the real-time and sandbox merchant interfaces. In the sandbox merchant interface, sign up for a customer email as well. Send the payment to the Post or Get links. Verify at the _cmd-notify-validate links.

Real Time
PayPal Customer and merchant interface

Post request for payment

Get (Response.Redirect) send request for payment

Post request for _cmd=notify-validate

Sandbox
PayPal customer and merchant interface

Order Processing

Get (Response.Redirect) processing

Post request for _cmd=notify-validate