An order changed state
Webhook
Sent every time one of your orders moves to a new state — one delivery per transition, not a summary.
orderId is the same id POST /orders returned, so you can correlate
without storing anything extra. idempotencyKey echoes your own reference
when the order was created with one.
Request​
Responses​
- 200
Accepted. Any 2xx works and the body is ignored. Anything else is a failure and will be retried.