If I added the IPN from zappier to my pay pal business account, is that all I need to do for people to be tagged into the convert kit that I added? I tried to pay for my product and it said I couldn't pay, so I'm doing something wrong. On zappier it said to be sure that your notification_url (usually the buy-now button level setting) is set the same (or is blank). What does that mean?
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