---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/17566#article
headline: "17566: Transcription request rejected by the provider"
url: https://www.twilio.com/docs/api/errors/17566
inLanguage: en
dateModified: 2026-11-13T13:01:01.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 17566: Transcription request rejected by the provider

Log Type: APPLICATION

Log Level: WARNING

## Description

The transcription provider rejected the request as invalid, so Twilio could not transcribe the audio. The transcription has been marked as `failed`. Twilio doesn't retry this error, because the same request would be rejected again.

### Possible causes

* The `language` in your transcription configuration isn't supported by the selected provider.
* Another setting in your transcription configuration isn't valid for the selected provider.

### Possible solutions

* Check that the `language` in your transcription configuration is a supported language code.
* Update the transcription configuration, and then submit the transcription request again.
* If the configuration is valid and the error persists, [contact Twilio Support](https://help.twilio.com/articles/360048500694-Contacting-Twilio-Support).

### Additional resources

* [Transcribe a Twilio Recording](/docs/voice/api/batch-transcription-resource#transcribe-a-twilio-recording)
* [Transcribe an external recording](/docs/voice/api/batch-transcription-resource#transcribe-an-external-recording)