Hi,
We are having two different BW systems, one is SAP BW 7.3 connected to ECC source system and another one is SAP BW 7.5 connected to S4HANA system. Both the BW systems are running on SQL database. We are having requirement to migrate both the system to single BW4/HANA system. Would like to know which one would be the best approach for consolidation and upgrade to BW/4HANA.