Hi. Question on Reports > Forecast > Forecast by Customer. Does anyone know where's the Forecast: Forecast Amount (weighted) gets the number from Sales Order?

I'm not 100 percent sure- but my inclination is its sales orders that are not in a cancelled or closed status that haven't been invoiced yet

Yes, same thoughts. But would there be any flag on Sales Order lines to identify that a particular line or a portion of an SO line has been invoiced?Thank you.

Quantity billed

I think it’s Qty - Qty fulfilled.