I was just about to make my own post for this, it's something we really need. We end up mostly playing it by ear when it comes to packing supply inventory, and it's unreliable for estimating the supply we have on hand: if we could at least automate the box inventory tracking, it would save us a lot of trouble.
It would be nice if we could also track packing supplies such as bubble wrap, possible as an attribute on the product itself to be set along with weight and default box size.
+1 We are considering moving over to Shipstation and tracking our shipping boxes has already been flagged.
Helping kick this 4 year old can down the road. Inventory tracking for products is easily taken care of on the storefront side of our operations through shopify. I am surprised that shipstation, being the key tool for shipping parcels, has no functionality for keeping tracking of shipping material inventory. This would not only save countless hours of recounting packing materials to see what needs to be ordered but would help keep things moving smoothly by warning us ahead of time when things are getting low (just like how product inventory tracking operates currently).
Please help. It is the most needed feature for our current operations as we run 10+ store fronts with all different types of merchandise and package material sizes.
Bumping this as this is a much needed feature! We ship thousands of orders a day and have the same problem as OP!