# 57006: 'EventType' is empty

Log Type: APPLICATION

Log Level: ERROR

## Description

`EventType` is required in this request. When it is missing or empty, Twilio returns This error with the message `'EventType' is empty`.

### Possible causes

* The request did not include a value for `EventType`.
* The request included `EventType`, but the value was empty.

### Possible solutions

* Pass a valid `EventType` value in the request.
* Validate the payload before sending it so `EventType` is present and populated.

#### Additional resources

* [Programmable Messaging](/docs/messaging)
* [Debugging Your Twilio Application](/docs/usage/troubleshooting/debugging-your-application)