what is the role of IPN in paypal? Can anyone explain me?

Prathiba

Instant Payment Notification

Instant Payment Notification (IPN) is PayPal's interface for handling real-time purchase confirmation and server-to-server communications. IPN delivers immediate notification and confirmation of PayPal payments you receive and provides status and additional data on pending, cancelled, or failed transactions.

IPN can be used to manage and customize a variety of PayPal-enabled APIs and communications, including:

• Customize your website's response to customer purchases in real-time
• Track customers via IPN "pass through" variables
• Deliver access keys for software downloads and other digital goods
• Automate your fulfillment operations
• Track affiliate sales and commissions
• Store transaction information in your own database

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Om Prakash Pant
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