PayPal Express confirmation email without order/invoice ID?

Hi, if i get a PayPal Express payment and confirmation email from PayPal, then can't see any relation to order or Invoice ID.
How i can fix this?

Hi - We are having the same issue - Has anyone found a solution for this?

This post might be able to solve the problem:
http://forum.opencart.com/viewtopic.php?f=22&t=151170

In catalog/controller/payment/pp_express.php file,

find twice:

CODE: SELECT ALL
'METHOD' => 'DoExpressCheckoutPayment',


add after both:

CODE: SELECT ALL
'PAYMENTREQUEST_0_CUSTOM' => $order_id,


This should resolved the problem by seeing the order ID as a custom field on your Paypal account end.