I am looking for a tutorial which will show me how to accept paypal payments as I am not having much luck with the documentation.
In the tutorial, I just need to understand how to capture a unique identifier when the payment has been initiated, and then use the unique identifier to update the database record when payment confirms the payment via ipn.
Does such a tutorial exist?
Basically, I already have the payments working i.e. a user can make a payment and payment can send a notification to the ipn script, but I can't tell which payment paypal has accepted.
There guide is pretty well written and covers all of this:
https://cms.paypal.com/cms_content/en_US/files/developer/PP_OrderMgmt_IntegrationGuide.pdf