---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/50363#article
headline: "50363: Invalid conversation webhook SID"
url: https://www.twilio.com/docs/api/errors/50363
inLanguage: en
dateModified: 2026-03-11T20:43:38.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 50363: Invalid conversation webhook SID

Log Level: ERROR

## Description

An invalid conversation webhook SID was supplied.

### Possible causes

* Webhook SID parameter provided with the request does not match a valid SID pattern (WHxx).

### Possible solutions

* Add a valid Webhook SID parameter to the API request and supply a SID that exists under your account.