Redwood Page add validation message based on field values

Summary:

I have an requirement to add validation message based on 2 fields value. i.e i want to display message with an division operation fieldA/fieldB and display that particular value.

Content (please ensure you mask any confidential information):

Can we add validation message on field values like assignment attribute or assignment DFF.

Im not able to find those fields in validation message section. How do we display the validation message.

Version (include the version you are using, if applicable):

25D

Code Snippet (add any code snippets that support your topic, if applicable):