NOT (!)


The NOT (!) operator is used to reverse a logical value. That is, if a condition returns a TRUE, using NOT will change its value to FALSE, and vice versa.



Argument Type Required Description
condition Boolean Yes The condition to negate


If you have a form with an optional text field with the code REGISTRATION_NUMBER, you could add a field "Registration authority" with the relevance rule:


In this case, the registration authority field will only be displayed if a registration number is provided.

Try the form

Next item