all total costs (GESAMTKOSTEN) for the selected project and coarse structuring (GROBGLIEDERUNG) = "Fremd" and fine structuring (FEINGLIEDERUNG) = "Lieferant/extern" and commercial closed Status (KFM_ABGESCHLOSSEN) are summarized . How do we write expression for this In (KFM_ABGESCHLOSSEN) field we only have two values Nein and ja . So how we write the expression.