Retell AI Office Hours

​Webhooks & Post-Call Data: Integrations That Don't Drop Events

​Join Steven Wu, our Senior FDE at Retell, for a hands-on office hours session on building reliable post-call integrations.

​We'll cover how Retell's webhook event model actually works — what fires when, how to handle retries and idempotency — and walk through a live Make.com / n8n recipe that routes call data into a CRM without losing events.

​We'll also dig into the most common failure modes developers hit: duplicate call_analyzed payloads, call_ended not firing on IVR-forwarded calls, post-call extraction variables not arriving downstream, and webhook URL routing issues across web vs. phone calls.

​Whether you're building on Make.com, n8n, Zapier, HubSpot, GoHighLevel, Cal.com, Salesforce, or PowerAutomate — bring your questions.