I have tried to resolve the issue myself, however I have not configured the call back function correctly.
What I would like is something to ensure that the variables are passed from PayPal to the tracking pixel. I would also like the developer to do a test transaction to ensure that auto return has passed the variables correctly (this will be refunded immediately after the test).
Please message me if you can help me resolve this issue. If possible, please include an estimated price.
Edit: Added a note to the thread title that this is paid. I just assumed initially that all requests in this room were paid.