order.status_changed events to your webhook endpoint.
Flow
Event payload
Order statuses
Processing steps
1
Verify the signature
Validate
X-Fire-Signature. See Authentication.2
Acknowledge immediately
Return
200 OK before processing.3
Look up the order
Use
external_order_id to find the order in your system.4
Act on the status change
Notify aggregators, update your database, trigger workflows — whatever your integration requires.
Cancellations
Ifstatus is cancelled, act on it promptly. If your system relays orders to aggregators, some require cancellation confirmation within a short time window.
