---
page_type: error
code: 30028
message: "30028: Invalid API version"
level: ERROR
product: Programmable SMS
---

## Description

API version used in the request is invalid

### Possible Causes

API version is not specified or is not either 2008-08-01 or 2010-04-01

### Possible Solutions

Use API version 2008-08-01 or 2010-04-01