Salary Amount Validation while Hire an employee on Salary Page

While hiring an employee, we need to restrict HR from entering a salary amount outside the Grade Rates defined for the selected Salary Basis on the Salary page. it does not appear to be working on the Redwood page.

While hiring an employee	Salary Amount of salary Page
Values above the maximum Limit of "Salary Amount" should trigger	Error
Values below the minimum Limit of "Salary Amount" should trigger	Warning [which is currently working on funsion]