---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/20001#article
headline: "20001: Unknown parameters"
url: https://www.twilio.com/docs/api/errors/20001
inLanguage: en
dateModified: 2025-12-18T21:40:49.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 20001: Unknown parameters

Log Level: WARNING

## Description

One or more parameters you sent the REST API were not recognized and were ignored. No harm done, but make sure that you didn't mis-type the parameter you really wanted to send.