We create a purchase order for 400 potatoes.  Inventory is not received yet. however purchase order is saved. 

We pre-sell 200 potatoes before potatoes are actually received. (this is how the speed of produce business works) 

now the QTW on Purchase order column will show zero instead of the 400 it should display.  

Quantity on hand correctly shows -200 because we have sold part of the pending shipment. 

When purchase order is copied to bill the quantity on purchase order will show a negative number. 

This worked perfectly up to February 24th 2023.  We have been preselling for 5 years with the correct Purchase Order quantity correct.