Every callback to an order's callbackUrl, and to a clinic's own webhook address, now carries the header Rivr-Webhook-Id: the same header, in the same form (a UUID), that your organisation's webhook endpoints get. It identifies the event.
This page needs JavaScript. The same content is available as Markdown: /changelog/2026-10-21-webhook-id-on-callbacks.md. Every document for agents is listed in /llms.txt.