I need to do some fields are mandotory in screen 300 of MFBF

Hi Friends,

My req is , I need to do some input fields (Curr. t/b Conf.) to Mandotory in the screen 300 of SAPLRMAA for Tcode MFBF. Please give me the suitable BADI / user exits for this cause. I tried to use the all the exits and Badi's with the break points, but i'm unable to find right one.

Can some one please help on this.

Thanks,

Kotesh