How can developer receive notification when a user cancel a product?

Hi,
We would like to know if there is a server to server notification available to alert us when a user cancels a product from the App Store. Thank you.
From Handling Refund Notifications:
When the App Store processes a refund, the App Store Server sends a REFUND notification to your server, at the URL you configured. Your server must respond to the post with a 200 response code. To enable notifications, see Enabling Server-to-Server Notifications.
The REFUND notification applies to consumable, non-consumable, and non-renewing subscriptions only. To detect refunds for auto-renewable subscriptions, see Detect a Refund for details.
How can developer receive notification when a user cancel a product?
 
 
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