---
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headline: "20422: Invalid Parameter"
url: https://www.twilio.com/docs/api/errors/20422
inLanguage: en
dateModified: 2025-12-12T15:03:58.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 20422: Invalid Parameter

Log Level: ERROR

## Description

The request contained malformed or semantically incorrect parameters.

Common occurrences:

* Lacking a specified `Content-Type` header field
* Invalid or missing XML data
* Invalid parameter type or value

### Is the request safe to retry?

A 422 request is never processed and is always safe to retry.