# 57013: 'Topic' is absent

Log Type: APPLICATION

Log Level: ERROR

## Description

This error occurs when the request is missing the `Topic` field. The error is listed under Messaging in the Error and Warning Dictionary.

### Possible causes

* `Topic` is not included in the request payload.

### Possible solutions

* Add `Topic` to the request and make sure it contains a valid value before you send it.

#### Additional resources

* [Messaging docs](/docs/messaging)