How to make a field mandatory based on a DFF Value

Summary

How to make a field mandatory based on a DFF Value

Content

Hi All,

 

I want to make a field Mandatory based on DFF values in that page. 

We have Enabled DFF department in Sourcing Header.

For Example : If the DFF department Vlaue is Human Resources then I want to make Current Price field Mandatory. If Department is not Human Resources then Current Price should be Optional.