---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/57013#article
headline: "57013: 'Topic' is absent"
url: https://www.twilio.com/docs/api/errors/57013
inLanguage: en
dateModified: 2026-03-25T13:34:46.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 57013: 'Topic' is absent

Log Type: APPLICATION

Log Level: ERROR

## Description

This error occurs when the request is missing the `Topic` field. The error is listed under Messaging in the Error and Warning Dictionary.

### Possible causes

* `Topic` is not included in the request payload.

### Possible solutions

* Add `Topic` to the request and make sure it contains a valid value before you send it.

#### Additional resources

* [Messaging docs](/docs/messaging)