Hi,
What are the keyfigures you are using in report?
are they available in both DSO and Cube?
if you DSO has fields A1, A2 & A3 as characteristics with Keyfigure value 100
and
Cube has only field A1 and key figure(same as DSO) value 200.
Then if you have A1, A2 and A3 in rows of keyfigure, your report output would be as below.
A1 -- A2 -- A3 -- 100
A1 -- # -- # -- 200
when you remove A2 and A3 from rows, output will become.
A1 -- 300
-Sriram