Sometimes you need to compare field values while submitting an entry or proceeding to the next page. Most often this applies to checking whether the “Email address” and “Confirm email address” values are identical.
It is very easy to set up such validation.
Use the “Validation” section in the “Properties” tab of the form page (available from FormBuilder).
You can select a relevant condition that you may have created before. See the example below:
Add a validation message that displays when the condition is met, and you’re done