I received a 'PayPal Instant Notification Warning' email from PayPal. What should I do now?

Problem Statement

This article helps you understand i received a 'paypal instant notification warning' email from paypal. what should i do now.

Solution

Each IPN message sent from PayPal has to be acknowledged by Chargebee.

If PayPal doesn't receive this acknowledgement, it treats the IPN as a failure and sends this email.

Please check if you have configured the PayPal IPN as per instructions here and reach out to support with details, for further assistance.