How to make at least one of many fields required
By default Gravity Forms only allows you to set a field as required or not. You can control this to some extent by using conditional logic to show or hide…
Conditional logic
Gravity Forms – How to do advanced number field formula calculations
Gravity Forms provides the ability to perform basic calculations in 'number' fields, such as 'field 1 x 2' or 'field 1 + field 2'. As of Gravity Forms 1.9.15 these…