Datasource Changes affect other system load?

Hi,
I have a  BW system say BW01 connected to source system SS01.
Now i need to connect another BW system BW02 to Source system SS01 and use the standard datasource.
If a change to datasource for any new requirement (Say addition of fields etc ),whether it would affect the existing connection?
If yes how?
Thanks and Regards
MuraliManohar

Hi,
I don't think it will effect the existing system. The changes you do at new BW system will be applicable to that system only. For example, If you have a Dev system and QA system, the changes will not be applicable to QA system unless you transport the same.
But if you change the data source at R/3 side and replicate it to old system then those changes will effected.
Hope this helps......
Rgs,
Ravikanth.

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