Hi Shiva
If you want only Simple Finance, but all Logistics as before - then S4 HANA 1511 is not the Solution for you
You should use SFIN Add on 1503. It is exchange innovation which means your traditional FICO modules get exchanged with SFIN
With S4 HANA 1511 you will be on Brand New Suite in which everything else is innovated, just like Finance
Ajay M