# 19047: Field definition name cannot be empty

Log Type: APPLICATION

Log Level: ERROR

## Description

This error occurs when a request attempts to create or update a custom field definition without providing a non-empty field name.

### Possible causes

* Attempt to create a custom field definition with an empty value for the field name.

### Possible solutions

* Update the request to include a valid, non-empty field name before submitting.

#### Additional resources

* [Error and Warning Dictionary](/docs/api/errors)
* [Debugging Your Twilio Application](/docs/usage/troubleshooting/debugging-your-application)