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Error 21402

Error - 21402

Invalid URL

You attempted to update the URL handler associated with a phone number, but the URL you specified was not valid.

Possible Solutions

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.

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