WHAT IS ES ?
It is Enterprise service. Contact you PI/XI consultant for more detail.
Check how data is flowing into POS DM from your POS/XI system to understand what method is used. It can't be determine from IMG as far as I know.
As per your explanation the Inventory(Goods movement POSDM to BW) and Inventory (Goods movement POSDM to ECC) may not be in sync on a particular time as their time of update is different....May I know which inventory figure I should use for Merchandise and Assortment planning, what is the general practice ?
Well I'm not aware of what data MAP requires. If you need stock updates better to go with ECC.
Thanks,
Vikrant