Oracle Performance Management module. A prompt for main appraiser to enter justification when apprai

Dear Team,

This is my request:

Once main appraiser has finished scoring appraisee and main appraiser is about to give final rating, the following should happen:

if appraisal score is  < (less than)  4.0 then main appraiser can select give "final rating" and submit

Else

if appraisal score > (greater tha 4.0 then a pop up should tell main appraiser to enter justification and the submit button should be disabled.

once main appraiser enters the justification, then the submit button should then be enabled.

Kindly help with steps to handle this request.

Hope to hear from you soon.