---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/19053#article
headline: "19053: Field definition name cannot be a duplicate of an existing Twilio-defined field"
url: https://www.twilio.com/docs/api/errors/19053
inLanguage: en
dateModified: 2026-03-11T18:38:39.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 19053: Field definition name cannot be a duplicate of an existing Twilio-defined field

Log Type: APPLICATION

Log Level: ERROR

## Description

Request with input field names using reserved words

### Possible causes

Attempt to create custom field definition using reserved words

### Possible solutions

Update input field name with unreserved words