RFC with Multilevel Hierarchy call from Server Proxy

Dear Experts,
We would like to call BAPI inside a server proxy.
PI has created an interface structure exactly identical as the BAPI structure, but while generating ABAP proxy, system has added additional controller structure for each hierarchy.
Now our ABAP team is facing the difficulty to map Proxy structure with BAPI Structure as now the structures are not identical any more due to control structure .
Also since the BAPI has multilevel hierarchy and to fill the bapi structure from proxy structure (which is having the same structure as bapi but with control records) there are lots of loops required.
Please share your thoughts on how to get rid of looping on proxy structure when both the structure are identical but only control structure has been added to proxy structure.
Also would like to know if we can restrict the control structure generation during proxy generation process.
- Shri

Yes, you have to read and map the abap proxy structure to bapi structure.
Take a look here:
http://help.sap.com/saphelp_nw04/helpdata/en/ab/585f3c482a7331e10000000a114084/content.htm

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