Packing slips can be emailed and printed from either the shipment or the invoice documents.
To email or print a packing slip, highlight the shipment or invoice in the list view and click Email or Print then select the template you want to use.
Emailing and Printing a Packing Slip on the List View
You can also do this while the shipment or invoice document is open.
Emailing and Printing a Packing Slip on the document