Validation Field

This Extra Field Type is available in Profile Builder 2.0, Hobbyist or Pro.

You can use this extra field type to implement Custom Validation Inputs.
You can specify the field title, meta-name to be stored in the database, description, allowable values and error message.
Also, you can set whether this field should be required or not.

Profile Builder - Validation Field Back End

This is how it looks like in the front-end.

Profile Builder - Validation Field Front-End