---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/91203#article
headline: "91203: Method Not Allowed"
url: https://www.twilio.com/docs/api/errors/91203
inLanguage: en
dateModified: 2026-03-11T22:03:37.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 91203: Method Not Allowed

Log Type: APPLICATION

Log Level: ERROR

## Description

This operation is not allowed against the resource

### Possible causes

* Deleting a schema is not allowed

### Possible solutions

* Avoid executing a `DELETE` action against the Schema resource