Is it possible to print vertically-oriented/portrait packing slips? I need multiple items to fit on one label. With the current landscape layout, the packing slip takes 2-3 4x6 labels per shipment.
We don't currently have the option to change the orientation of your 4x6 packing slips, however, you can change how your packing slips are displayed and change the font size and information shown on your packing slip to allow more line items on one page:
Otherwise, you may want to consider printing on larger size paper: Setting up your packing slips: Step by step guide