Lindsey Kester Hodges,
I'd love to learn more information of how you image this would work and what this will solve for you.
Could you give me more detail on what you would like? It sounds like you want to be able to print packing slips separate from the shipping labels. What will this solve for you?
I'm guessing that this is so that you can start the picking process separately from having to purchase it. Is this correct? How do you wish it would work? If they were separate, do you have an idea in mind for when and how you'd want to purchase the shipping labels and associate them with the packing slips?
I'm looking for the same information on another related Canny and want to make sure I understand the problem to solve for you :-)