Quote Originally Posted by Gomlers View Post
Since my customers have to push the "Back to store-button" when the payment is OK, to get back to the checkout_success (Where google gets the purchase information from) - My stats are really inaccurate... because plenty of customers never click back to my store from PayPal-receipt-page...
Since your analytics works on cart-payment-completion, there's nothing you can do if the customer doesn't return to your store to do the completion stage, even though it's just a simple click.

It's a limitation of the Website Payments Standard technology as designed by PayPal.

Quote Originally Posted by Gomlers View Post
And if not, does anyone want to check if the module for osCommerce can be rewritten to fit this need.
That module doesn't do what you want anyway.