Hey, I've been using the PayPal IPN for a while now, but only with standard payments. I'm looking to process subscription payments with it but not sure what fields I need to include. At the moment I'm using these fields: $p->add_field('business', "myemail@whatever.com"); $p->add_field('return', "http://mysite.com/"); $p->add_field('cancel_return', $this_script.'?action=cancel'); $p->add_field('notify_url', $this_script.'?action=ipn'); $p->add_field('item_name', "My Subsciption Name"); $p->add_field('amount', "999.99"); $p->submit_paypal_post(); //$p->dump_fields(); Code (markup): Any ideas what fields I'd need to add for subscription payments? Thanks!