post
https://secure.mintpayments.com/mpay/v5/purchase//cancel
Cancel a previously authorized transaction before it has been captured.
This releases the hold on the customer's payment method without charging them.
About Transaction Cancellation
Cancel operations are used to:
- Release authorization holds on customer payment methods
- Cancel transactions before goods/services are delivered
- Handle order cancellations and inventory issues
- Free up customer credit limits
Use cancellation for:
- Order cancellations before fulfillment
- Inventory unavailability
- Customer-requested cancellations
- Authorization cleanup when capture is not needed
Note: Only authorized (uncaptured) transactions can be cancelled.