Magento_OrderCancellation module

This module allows to cancel an order and specify the order cancellation reason. Only orders in RECEIVED, PENDING or PROCESSING statuses can be cancelled and if the customer has paid for the order a refund is processed.

This functionality is enabled / disabled by a feature flag that is set at storeView level.

After the cancellation, the customer receive an email confirming it and this cancellation is reflected in the customer's order history.