IPN definition

IPN is instant Payment Notification, a server-to-server callback that reports invoice status changes to a merchant system.

Why it matters

Merchants evaluating CoinPayments, CoinPayments Legacy, CoinPayments v2, or another crypto payment gateway should understand this term before mapping checkout, fulfillment, refunds, and support processes.

Related reading

Start with our CoinPayments review or the CoinPayments integration guide.