Skip to contentSkip to navigationSkip to topbar
On this page

Invalid callback url



ERROR: 21502

error-21502 page anchor
ERROR

Invalid callback url

invalid-callback-url page anchor

The callback url provided is not a valid URL.

Possible Solutions

possible-solutions page anchor

Make sure you submit a fully qualified URL including:

  • protocol (http:// or https://)
  • hostname
  • file path
  • properly url-encoded query parameters

Twilio must be able to reach this URL over the public Internet.

Need some help?

Terms of service

Copyright © 2024 Twilio Inc.