# 54051: Invalid webhook URL

Log Type: TWILIO

Log Level: ERROR

## Description

### Possible causes

* You did not pass a correctly-formatted URL.
* You are crafting HTTP requests yourself and passed a URL, but did not percent-encoded it.
* You passed a webhook URL that is longer than 512 characters.

### Possible solutions

Confirm that you are providing a fully-qualified, percent-encoded HTTP URL no longer than 512 characters.