Validating Mandatory fields in FPM Applications when clicking on SAVE button in toolbar

Hi All,

Copied Create Initiative  functionality in PPM into Z Application . Here we have fields like Initiative Name , Planned Start and Planned Finish .

How to make this fields as mandatory and how to validate the mandatory fields when clicked  on save button ?

  when we clicked on create Initiative Button Below screen will appears

• Here How to make this fields as mandatory ?
• When we clicked on Save button   how to handle  validation of fields ?

Thanks & Regards,

Naveen