---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/45313#article
headline: "45313: Transfer Failed"
url: https://www.twilio.com/docs/api/errors/45313
inLanguage: en
dateModified: 2026-06-09T11:00:42.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 45313: Transfer Failed

Log Type: TWILIO

Log Level: ERROR

## Description

This error means Flex could not complete a transfer request. It typically occurs when the transfer times out before completion or when the underlying Voice API request fails during the transfer flow.

### Possible causes

* The transfer request timed out before Flex could complete it.
* The underlying Voice API returned an error while Flex was creating or updating the transfer call.
* You tried to start a warm transfer when the current call was not a live, conference-based call.
* You tried to start a warm transfer while another transfer was already in progress or while your participant was on hold.
* You transferred to a task queue that had not been used in the last 30 days, which can prevent the queue from being available for the transfer flow until it is reset.

### Possible solutions

* Retry the transfer.
* Before you start a warm transfer, make sure the call is live and conference-based, make sure you are not already involved in another transfer, and make sure you are not on hold.
* If you are transferring to a queue that has been idle for more than 30 days, route an inbound task to that queue first to reset it, then try the transfer again.
* Review the related Voice Call Logs, Debugger events, and Request Inspector details in Console to identify the underlying call error that caused the transfer to fail. ([help.twilio.com](https://help.twilio.com/articles/360021755854))
* If the failure happens in a customized Flex deployment, review Flex UI error reports and logs to capture more context around the failed transfer action.

#### Additional resources

* [Warm transfer](/docs/flex/end-user-guide/warm-transfer)
* [Flex Dialpad known limitations](/docs/flex/admin-guide/setup/voice/dialpad-limitations)
* [Troubleshooting Voice Calls](/docs/voice/troubleshooting)