---
page_type: error
code: 30109
message: "30109: Callback URL is invalid"
level: ERROR
product: Programmable SMS
---

## Description

The URL specific in your API request for Click Tracking is invalid

### Possible Causes

- Protocol could be missing
- Hostname could be invalid
- Incorrect encoding

### Possible Solutions

Make sure you submit a fully qualified URL including:

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