Ecart 5, Paypal Standard and OrderTrackingNumber
Hi - wondering if someone can point me in the right direction.
I am setting up a cart using eCart 5 with Paypal Standard. I am trying to use Paypal's IPN to send notification back so I can update my database record that a user has 'paid'.
What I can't figure out is what to use as a unique tracking ID number that I can store with my order and can also get back from Paypal so I can use it as a key to update the correct record.
Can anyone shine some light on this?