Hi DIVYAP,
sorry for my late reply.
I have tried to use the KPI without the IN context operators, but then I have the Problem, that for the Operating Company with more than one Company Code I´m going to get the #MULTIVALUE.
In our structure several Company codes have united to one Operating Company.
Perhaps this can help: I´ve executed the Query in BEx Web via Query Designer, there the KPI sums up at all Levels. But this only happens when I add the operating company or Business unit at first and afterwards select a filter on KPI. If I make it differently (firstly filtering and then add measure), I´ll get an error.