Can I include custom messages for Printful orders?
Yes, you can add your own message (and logo, if you choose) that will be added to each packing slip! Do this by going to Stores > Edit.
You can also include a personalized gift message on the packing slip when submitting a manual or API order by checking "This is a gift" on the review page. A packing slip with a gift message will still show all order prices, unless it's a manual order to the US.