Thanks Chaps - this is OK on the diddy ones - but check out this baby, and it's still growing.....!!!!
IIf([StockIdentifier] = 1 Or [StockIdentifier] = 2, IIf([StockIdentifier] = 1, IIf(IsNull([SupplierId]), [Unit_Dia], Reporting_EOY_SrcMaterialUnitCost!Price), IIf(IsNull([SupplierId])...