Is there a way to track cart abandonment in PayPal? I know that I can see how many people end up on my "ordered canceled" page, but they only get there if they hit the "return to seller" link. Is there a way to see how many people close the window, use the back button, etc?
If you use Paypal's IPN or advanced integration, you can track visitor behavior up until they transafer off your site to paypal. The transfer would be the last step, so you can get a fairly accurate representation of abandonment. Measure: Shopping Cart Page -> Checkout / Finalize Page -> Paypal Payment (Whether they complete the transaction)