The Shipment Canceled webhook is used to notify your system when a shipment has been canceled in Fulfill Engine. When this occurs, a POST request will be made to your registered webhook URL with a body describing the event. An example request body is shown below.

{
  "accountId": "account-id",
  "campaignId": "campaign-id",
  "orderId": "order-id",
  "customId": "shipment-custom-id",
  "shipmentId": "shipment-id",
  "webhook": "shipment_canceled",
  "cancelReason": "Message explaining why the shipment was canceled",
  "url": "https://api.fulfillengine.com/api/accounts/account-id/shipments/shipment-id"
}