# 57014: 'Event' data in payload is absent

Log Type: APPLICATION

Log Level: ERROR

## Description

This error occurs when the request payload is missing `Event` data. Twilio lists This error under Messaging in the Error and Warning Dictionary, and Twilio returns a 400 response when a request is missing a required parameter.

### Possible causes

* The request payload does not include `Event` data.

### Possible solutions

* Include `Event` data in the request payload, then resend the request.
* Review the error logs to inspect the exact error, likely causes, suggested solutions, and the request and response associated with the failure.

#### Additional resources

* [Twilio API responses](/docs/usage/twilios-response)
* [Debugging Your Twilio Application](/docs/usage/troubleshooting/debugging-your-application)