The CF7 Required Custom Field plugin is designed to extend the functionality of the popular Contact Form 7 plugin for WordPress. With over 5 million installations, CF7 is a staple for form creation, but it has limitations regarding error messaging for mandatory fields. This plugin addresses that gap by allowing users to set custom validation messages for each required field, thus improving user experience and form clarity.

This plugin supports a variety of CF7 form-tags, including text, email, URL, telephone, number, date, select, checkbox, file, and textarea. Users can simply leave the message field blank if they prefer to use standard messages. The CF7 Required Custom Field is free to use and requires PHP version 5.3 or later, as well as WordPress versionor newer.