Hi Baldeep,
Now this is little bit tricky ..
You need to first understand that APO planning book data is not dynamic.. Its keep changing, because users keep forecasting.
the point of data when BW extracts data always matches with APO.. but after sometime the planning book data keeps changing.. so If the user wants as is data to be matched then I don't think you would be able to match. It will be like, he is comparing APPLES to ORANGEs.. that's why we compare through snapshots.
Regards,
Ashu.