BADIs are OO Enhancements to add functinality to the existing standard transactions. Tcodes are Se18 and SE19. To find BADI: Open Transaction -> System->Status->dbl click program->Find(Bin...
BADI means Business Addins . It is an one type of enhacement Using Badi we can add new functionality to the standard transaction with out moidifying the standard source code.Regards.Sankaran Ramaiah