---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/48010#article
headline: "48010: Custom Routing Callback failed to execute successfully"
url: https://www.twilio.com/docs/api/errors/48010
inLanguage: en
dateModified: 2026-03-11T20:01:16.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 48010: Custom Routing Callback failed to execute successfully

Log Type: APPLICATION

Log Level: ERROR

## Description

### Possible causes

* The callback endpoint returned an error code.
* The callback processing is exceeding 10 seconds.

### Possible solutions

* Check your callback execution logic to ensure it is processing the callback calls correctly and passing back `200 OK`.
* Make sure that callback processing time is less than 10 seconds.