# 21763: Default Opt-Out/Help Keywords Invalid

Log Type: TWILIO

Log Level: ERROR

## Description

The campaign submission could not be processed because the opt-out and help keywords for the provided messaging service's opt-out configuration contain invalid characters. Please verify that all keywords have alphanumeric and unaccented characters only.

### Possible causes

Keywords contain special or accented characters.

### Possible solutions

Use only unaccented alphanumeric characters in keywords.