What happens to the supplier purchase order when a customer cancels?

Cancel the order. Cancel the PO. Cancel the route. One action. A cancellation runs through everything the order touched: the supplier PO, the fulfillment route, the ledger, the split, the buyer's receipt. Nothing downstream keeps producing something nobody's paying for. Inside the hold window it's clean; after it, the system tells you what's already moving. A partial cancel works the same way: kill one line, the rest of the order keeps producing. The buyer gets one email that says what was cancelled and what's still coming, from the store's name, and the ledger already agrees with it.

What it used to cost you: Blanks that arrived anyway and a decorator who'd already started.

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