How to constraint between job and salary grade in workforce planning

Hello everyone,

I have one question about workforce planning add a new hire.

When i tried to add a new hire :

I chose the Salary Options is "Salary Grade" and clicked continue:

When choose the Grade , it shows all the salary grade for a job.

I tried to create a valid intersection for the Job and Salary grade, but it did not work.

My question is:

How can I limit or set constraints for job and salary grade in workforce planning??

For example, when I choose the job as JOB01 —> Salary grade only shows GRADE01.

Thanks!