Hey everyone, I'm trying to figure out a way to keep track of shirt inventory that I print on demand. Since I don't stock shirts that are already printed, I can't specify how much inventory I have of a particular design. For example, I have 100 blank shirts X and 6 designs on screen printed heat transfers (times 15 different blank apparel items) . Since shipstation only modifies inventory on items sold on my website - what's the best way to keep track of blank inventory as sales come in?
