In my current project we are going for two instances of SAP ECC source system, one for SAP HR and one for SAP MRO. This is because the HR system with payroll is sensitive and must not be interferred by the development and upgrade of SAP MRO.
How will this effect the BW system we are building on top of these SAP sources? I am not yet aware of which data will be overlapping in the two systems, but employee and maybe working hours is likely. How do I handle this in BW and how much will the development estimate rise beacuse of it? Just the connection cost, or other implications too?
Hope there is someone out there with some experience on this! =)
Regards Silje