An In-flight order is defined as an order that has not been activated yet and has some corrections (in configuration, pricing, etc.) against the lines.The two most common scenarios for In-flight order changes are Amendment and Cancellation.

Canceling an In-flight order: Canceling an In-flight order cancels the In-flight order and its line items, and their statuses are updated to Canceled. The product configuration (cart), if exists on the order, is superseded and the statuses of the (cart) line items are updated to Canceled.