---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/16003#article
headline: "16003: Could not recognize conference sid or friendly name"
url: https://www.twilio.com/docs/api/errors/16003
inLanguage: en
dateModified: 2025-12-12T18:14:22.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 16003: Could not recognize conference sid or friendly name

Log Level: ERROR

## Description

Twilio could not recognize the provided conference sid or friendly name. Please see https://www.twilio.com/docs/voice/twiml/conference for more documentation.