Mutliple R/3 clients: what about BI ?

Hi,
If we have many R/3 production systems: one for FI, one for Logistics etc, what is the best architecture for BI?
- One BI system connected to these multiple R/3 systems? (I know it's possible to load data from multiple sources into one single InfoCube)
- As many BI systems as we have R/3 systems? (one consultant told us development, transport and maintenance would be easier in that case) but for us, the server cost is higher...
I haven't found this topic yet, could you please help?
John.

Hi John,
If you have multiple R/3 production systems with each of these systems being used for different application components , as u mentioned , FI , Logistics, etc,, then you dont need multiple BI systems.
However, if u are using two R/3 system to maintain same organization structures u need different BI servers , for example, a SAP Retail R/3 system to maintain the Retail data , and another SAP R/3 system with same organization structure as that of the Retail R/3 then you need multiple BI implementations.
There is a silver lining even to the above problem. There is a field called Logical System ( 0LOGSYS ) in BI system that your BI consultant have to compound to each and every infoobject in BI system. As this is a time consuming and error prone process, you need to take call on this.
Assign points if helpful.
Regards,
Narendra

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