SAP FICO is the classic ECC Finance and Controlling module, built on separate FI and CO tables that are reconciled periodically. SAP S/4HANA Finance is the next generation of the same functional area, rebuilt on the Universal Journal (a single table called ACDOCA) running on the SAP HANA in-memory database, so finance and controlling data update together in real time.

The preparation for SAP interviews requires a strong understanding of business processes along with system navigation skills. Reviewing Top SAP SD Interview Questions and Answers