Reading aggregated data from a cube/multiprovider

Hi BI people
My project is currently looking for a functionmodule that reads aggregated data from a cube/multiprovider.
I already have a functionmodule that reads data from a cube and returns it in a flat format. I have debugged this, but have not found any flags that can enable the OLAP functionality needed to perform the aggregation. The functionmodule is "RSDRI_INFOPROV_READ_RFC".
The situation is that I need to apply the aggregation logic of a profit center hierrarchy to the data I read from RSDRI_INFOPROV_READ_RFC, this means manually replicating the the OLAP engine functionality (keyfigure aggregation exception, ect.) and this is not an option with the available time/budget.
Please have a look at the example below:
Say that I have a profit center hierarchy as displayed below (with postable nodes).
PC1 - $10
|---- PC2 - $30
|---- PC3 - $20
The data I'm getting back from the functionmodule RSDRI_INFOPROV_READ_RFC looks like this:
PC1 $10
PC2 $30
PC3 $20
But I need the data aggregated. An aggregation utilizing the hierarchy above will make the data look like this:
PC1 $60
PC2 $30
PC3 $20
Instead of building an aggregation program, it would be usefull if it was possible to extract aggregated data.
Any comments appreciated.
Regards
Martin

Thx Olivier,
The problem is that I need a functionmodule that can apply the OLAP aggregation for a hierarchy to the data outpu from RSDRI_INFOPROV_READ_RFC.
... or the best alternative would be if there were a fm/class that could provide me with the hierarchy aggregation of the data.
/Martin

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