I am able to post payment data to the Paypal REST API, and I get a response. However, I ran some tests and entered incorrect expire dates and invorrect CVV2 numbers, but the response I get from the API is that the credit card has been approved.
From searching around, I understand that I should use the IPN to get a confirmation of the payment. I setup the IPN listener, and when I use the simulator to test, everything seems to be working.
My question is, how to I trigger the IPN callback on the payment? Or what would be the correct method to fully test the credit card details?
Any suggestions would be greatly appreciated! TIA!