midpen Posted January 16, 2011 Share Posted January 16, 2011 (edited) Why Instant Payment Notification (IPN) need to be enabled in paypal when using paypal standard check out? Paypal will send you a payment notification message to your email address anyway when money come in even you did not turn this on. What is the paypal IPN function for OSC? Thanks. Edited January 16, 2011 by midpen Quote Link to comment Share on other sites More sharing options...
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