How to show the custom error message for a required field instead of system generated

Summary

How to show the custom error message for a required field instead of system generated

Content

HI All,

 

How to show the custom error message for a required field instead of system generated error message.

 

I have scenario where user miss to skip the required field it generates the system error message Instead of that I wanted to make it Custom error message. I tried with throw new oracle.jbo.ValidationException("Please Enter Primary Contact to create Opportunity Record") but its not working still shows the system default.

 

Groovy Script: Field level for Primary Contact required flag is true and below is the condition