We are trying to track conversions on our website using Google Analytics, and we got Events and Goals to work.
However, the payment is done through a 3rd party payment processor (similar to Paypal), so the session is restarted during the purchase, and the user's landing page is our "payment success" page, and not the "real" landing page.
[landing page] -> [buy now page] -> {payment processor} (3rd party) -> [payment success]
Cross Domain Tracking seems to be what we need to keep the session alive during the transaction, but I don't see how I can do that without being able to insert code on their website, which I obviously can't.
Is there a way to set up Cross Domain Tracking without access to the second domain? Or is there another way we can track the path of purchase properly?