Sap analytic cloud aggregation

[daniel_weisblut]

Hi

I have this complex data that present WBS , PO and GR and SD at the same data

Now i want to show the WBS budget that calculate from the PO amount

i have many rows with the same amount because there are more variables in the data
The Unique combination for the WBS budget is to sum the PO number with PO product and PO serial

when i make another measure agg  on those three its show the same number as the PO amount measure

this is a sample of the data

hope you can help me with that i am really stuck 

Thank you