Instead of using the default site assigned at the SOP Document level, this tweak will make each SOP Line use the Default Site assigned to the Item on Item Quantities Maintenance. If an Item does not have a Default Site, the SOP Document site will be used.
Navigation: Tools >> Setup >> Company >> Setup GP PowerPack
Mark the box next to TWK-SOP: Use Item’s Default Site, then click DONE.
The feature will be enabled for the current user. Other users must restart their Dynamics GP client to enable this feature.