With the function module MD_STOCK_REQUIREMENTS_LIST_API, could you please help me to explain more about different between the fields below (in table result MDPSX LIKE MDPS):
1. DELNR & KDAUF.
2. DELNR & RSNUM.
3. DELNR & PBDNR.
I see these fields are different but i can't understand the difference between these fields?
Thanks all you a lot in advance,