Gravity Forms Custom Validation was built to validate users input and let users submit right data on gravity forms form. You may apply defined users to your order form, registration form, quotes form etc. So you may limit users enter right phone number, license number, post code for specific zone and VAT number...
The plugin separated from our old plugin Gravity Forms Blacklist and Custom Validation.
We'd like to receive your custom validation rule request.
Plugin Documentation & Demo