Auto-Set Qty To Backorder calculates the Quantity To Back Order when the Quantity Fulfilled is set to a value less than the Order Quantity (or Invoice Quantity).
Navigation: Tools >> Setup >> Company >> Setup GP PowerPack
Mark the box next to TWK-SOP: Auto-Set Qty To Backorder, then click DONE.
The feature will be enabled for the current user. Other users must restart their Dynamics GP client to enable this feature.
Using Auto-Set Qty To Backorder
After changing the Billed Quantity (or Invoice Quantity) and Qty Fulfilled, GP will calculate the balance and update the Qty to Back Order field. This will work with regular inventory, as well as serial/lot controlled inventory, and on both the main Sales Transaction Entry window and the Sales Item Detail Entry window.