---
page_type: error
code: 50077
message: "50077: Invalid pre-webhook url"
level: ERROR
product: Programmable Chat
---

## Description

Request does not contain a valid url for pre-webhook.

### Possible Causes

- Provided url has the wrong format.

### Possible Solutions

- Make sure that url is complete and properly encoded.
- Make sure that url contains valid protocol and hostname and doesn't contain invalid characters.