The Zinc API supports pre-shipment order cancellation on Amazon.com and Amazon.co.uk.
You can only cancel an order after it has been successfully placed using the API
This is distinct from aborting an order, which occurs while the order is still in progress. Cancellations will send a cancellation request to the retailer and attempt to stop the order from shipping and can only be initiated for order requests that were successful.Use your client token as the username. Leave the password blank.
The unique identifier for the order request to cancel
The merchant order id of the order that you would like to cancel. If the order has multiple merchant_order_ids you must cancel each separately.
A webhooks object including URLs that will receive POST requests after request_succeeded
and request_failed
Cancellation initiated successfully
The unique identifier for the cancellation request