Connect one SAP BW system to multiple R/3 systems

Hi All,
Has anyone done a connection of one SAP BW system to multiple SAP R/3 systems. I know it is theretically possible, but please let me know if anybody has experience of doing it. Our scenario is that take HR data from one R/3 system and other modules data from another R/3 system.
Also please let me know the steps of connecting the systems, the do's and dont's and any special config that needs to be done.
Also what are the risks?
Thanks in advance.
Regards,
Rajib

Hello,
after you connected the new source system, there are some additional steps to do. But this is common for all new source systems:
-> Set conversion of source system names in RSA1. This is necessary for Transport of Objects in BW. Go to RSA1->Tools->Conversion of Logical System Names
-> Set Assignment of Source System to Source System ID. You also find this under RSA1-> Tools. This is only important if you use a Source system ID like in IO 0SOURSYSTEM.
-> Replicate Application Component Structure of DataSources. Therefore go to DataSources. Select your Source System (If you are on BI 7.0) and go to the Header, right click you mouse and replicate Tree Metadata and then replicate DataSource.
Best regards,
Peter

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Message was edited by:
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Edited by: Anindya Bose on Feb 16, 2012 8:29 PM

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