---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/17514#article
headline: "17514: Invalid participant type"
url: https://www.twilio.com/docs/api/errors/17514
inLanguage: en
dateModified: 2026-07-31T15:59:35.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 17514: Invalid participant type

Log Type: APPLICATION

Log Level: WARNING

## Description

Twilio could not create a new transcription because the participant `type` value is not recognized.

### Possible causes

The provided `type` value is not one of the allowed options.

### Possible solutions

Set `type` to one of the following values: `CUSTOMER`, `HUMAN_AGENT`, or `AI_AGENT`.

#### Additional resources

* [Specify participant information](https://www.twilio.com/docs/voice/api/batch-transcription-resource#specify-participant-information)