How is stock inventory managed alongside print on demand?

Sell what's on your shelf, beside print on demand, in one catalog. Managed inventory per variant. Your own stock sits as a source on the listing next to the suppliers. Quantities update as orders land, backorders behave like backorders, and a store can show or hide the count. The pick ticket matches what the store promised. Reservations hold units the moment they're carted, low-stock thresholds warn before you're out, and a second warehouse shows as a second source on the same listing. A location that holds stock for one account sells it to that account only, on that account's store.

What it used to cost you: Selling a size you didn't have and finding out on the pick ticket.

The feature is called Stock inventory. It runs on the same rails as everything else here: one catalog, one price list, one cockpit, your name on the front.