What is Instant Payment Notification (IPN)?
Instant Payment Notification is a message service that notifies you about updates to your PayPal transactions. You can use it to automate administrative functions, such as fulfilling orders, tracking shipments, and providing status updates.
Instant Payment Notifications can update you on the following items:
- Instant payments (including Checkout and direct credit card payments).
- eCheck payments.
- Pending payments.
- Recurring payments and subscriptions.
- Disputes, chargebacks, reversals, and refunds.
Instant Payment Notification is automatically included with PayPal Payment products, Checkout, and Standard Checkout.
To learn more about Instant Payment Notification, visit http://www.paypal.com/ipn/