hi experts,
this enhancement should transform the partner function from the vendor selected in the shopping cart from 'PREFERRED' to 'ACTUAL'
this must done by implementing the dadi_doc_change_badi for object type shopping cart BUS2121 method BBP_SC_CHANGE.
et_partner.
but my problem is how to start this i am new to BADI.
how do get the documentation for this badi and methoud (bbp_doc_change_badi, BBP_SC_CHANGE)
plz help me