In Sales Order Entry, the header SOOrder.OrderQty is SumCalc by the SOLine.OrderQty. I changed the SOLine.OrderQty in the SOLine_RowUpdated event by:
cache.SetValueExt<SOLine.orderQty>(row, newValue);
The line quantity did change to the new value, but the header SOOrder.OrderQty still keep the old value. I added another statement:
PXUnboundFormulaAttribute.CalcAggregate<SOLine.orderQty>(cache, row);
But still no change. Am I missing something?

Thanks,