Hi Tom,
On the Purchase Order Processing Setup window (Microsoft Dynamics GP | Tools | Setup | Purchasing | Purchase Order Processing) there is an option for PO Line Site ID. Here is a copy of the description of this option from my book:
"If Previous Line's Site ID is chosen, a user will always have to fill in a Site ID on the first line item when creating a new PO. All subsequent lines will use the same site as the previous line. Choosing Item's Default Site will fill in the Default Site ID selected on the Item Quantities Maintenance window for each item. This may result in one PO with multiple sites, which Dynamics GP allows, however, most companies do not choose to do this."
If you've set the Default Site ID on all your items, then you may want to make sure you have Item's Default Site chosen for this setting. Just be careful if you have multiple sites and do not wish to have multiple sites per PO.
