I am learning BADI's. while going thru a document i got strucked with this can anyone explain me and how to do this.
1)"*Function codes can be entered for a BADI *for the corresponding menu entries in the user interface definition"
2) "Subscreen areas can be entered for a BADI. Screen enhancements can be implemented for these in the form of subscreen screens".
Function codes in Menu exits i.e Menu exits are the exits for adding new menu's to the standard transaction.
when you check with any badi that provide menu exits it has function code like 'CU1', 'CU2', and so on.
for that particular fctcode you can add your own functionality,so that it appear for that transaction.
reward points if useful,