The webhook didn't arrive: a troubleshooting guide, and every delivery error explained

The webhook didn't arrive: a troubleshooting guide, and every delivery error explainedThe new guide The webhook didn't arrive (/guides/webhook-troubleshooting) goes from "nothing came" to a delivery Rivr has given up on: which path the webhook should take (the clinic path via callbackUrl, or your organisation's endpoints), whether it was sent at all, why a delivery fails, what to do…This page needs JavaScript. The same content is available as Markdown: /changelog/2026-11-01-webhook-troubleshooting.md. Every document for agents is listed in /llms.txt.