This should be a separate thread.
Enable these fields on the customer billing tab:
The Consolidate Sales Orders check box determines how the Get Shipments process creates invoices from sales orders. When selected, this check box indicates this customer can have multiple orders placed together on the same AR invoice. If you clear this check box, however, separate invoices are created for each order placed by this customer.
The Combine Packing Slips check box determines how the Get Shipments process creates invoices from packing slips. When selected, this check box indicates all packing slips created for the same order and fiscal period are billed on a single AR invoice. If you clear this check box, however, each packing slip creates a separate invoice.
From invoice entry, get shipments, all sites.
The application will create the invoices.
Check to see if the shipments were combined into a single invoice.