EWA and SLR reports in different solutions, possible?

Hi,

We have a central Solution Manager to manage all the SAP systems of one of the business units of our company with 5 plants in different countries (Germany, USA, Argentina, Spain). The systems of each plant are administrated by the local SAP administrators in each plant so we have defined 2 solutions (productive and non-productive systems) for each plant and the EWA reports are activated in these solutions. We have another "reporting" solution for our IT Managers (situated centrally in Germany) with the productive systems of all the 5 plants. The SLR reports are activated in this solution.

So the solution landscape in our SolMan is as follows:

- Solution Plant1 productive systems: EWA reports activated for the systems

- Solution Plant1 non-productive systems: EWA reports activated for the systems

- Solution Plant2 productive systems: EWA reports activated for the systems

- Solution Plant2 non-productive systems: EWA reports activated for the systems

(...)

- Solution Plant5 productive systems: EWA reports activated for the systems

- Solution Plant5 non-productive systems: EWA reports activated for the systems

- Solution Reporting (all plants productive systems): SLR reports activated for the systems

SLR report data is obtained from the EWA reports... so, must we activate too the EWA reports for the systems of the "Solution Reporting"? If we activate the EWA reports for the systems in this solution they would be duplicated (in 2 solutions) so there would be a duplicated extraction job bein executed in the satellite systems and the EWA data would be duplicated in the SolMan. I mean, is EWA report data "solution specific" or is it "system specific" and then once it is generated in one solution it can be executed for the SLR reports of a different solution?

Thanks in advance,

Jon