The information panel provides an option to show "Warehouse Location" in invoicing. The "Warehouse Location" information is in the header in Inventory File maintenance and must be populated for the item to display. To add this field to the status panel see the Configuring the Information Panel section.
The Create Invoice screen with the information panel reconfigured to show "Warehouse Location".
If a lot item is being printed on the invoice that does not have a lot-specific Warehouse Location assigned, the invoice document line item will be printed using the Warehouse Location of the item itself.