Paypal IPN Question
My understanding of the process is that I enable the aweber paypal app, then set up an IPN at paypal linking back to the correct aweber list.
After doing that, I began to wonder how does paypal know which customer to send to that aweber list as I have people buying things that are unrelated to my membership site.
I don't want someone who buys an ebook going on my membership site list.
Can someone tell me how this works and if I need to do something else?
Thanks
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