referral.milestone webhook delivery

Delivered to a registered endpoint when a referral.milestone event occurs.

postWebhookreferral.milestone

Payload

idstring required

Stable delivery id, reused across retries (idempotency key).

event'referral.milestone' required

created_atstring required

ISO-8601 timestamp the event was emitted.

Acknowledged. Return 2xx to mark the delivery successful.

Webhooks have no change history: a webhook is keyed by its event name rather than a path and method, so no recorded change can name it.