We are having requirement to upgrade our SAP BW systems to SAP BW4HANA.
We have 2 BW systems, 1 is SAP BW 7.3 connected with ECC and another is SAP BW 7.5 connected with S4.
Requirement is to consolidate the systems and upgrade to BW4HANA. SAP BW 7.5 is having very less data-flows while SAP BW 7.3 is big implementation.
What could be the ideal approach to go for BW4HANA?