Userexit or BADI for CS01 and CS02 ?

hi....

I have two questions.

1) I want to save the data in other table

when I click save button using t-code cs01/cs02.

checked instructions below and then tried to put break point and try debugging,

but user exit didn't work out.

If you have done this correctly,

pls, let me know.

2) Please let me know how to use badi.

BOM_UPDATE

Your help will be appreciated.

Regards