One catalogue, every channel
Most operators run four menus without realising it. The cost shows up as wrong prices, phantom stock, and an argument at the counter on a Saturday.
Add a storefront, an app, a QR menu and two aggregators, and you have five places where a price lives. Change one and you have four wrong ones.
The cost is not the typing
Updating five systems is tedious but survivable. The real cost is the gap between them: a guest sees 2.500 on the app and 2.750 at the counter, and now your cashier is negotiating.
Sold-out items are worse. An aggregator that has not caught up sends orders for something you ran out of at noon, and the refund and the review are both yours.
What one catalogue buys you
Change a price once and it moves everywhere. Mark an item unavailable and it disappears from every channel in the same breath. Stock moves as orders complete rather than as someone remembers.
Where they should still differ
One catalogue does not mean one price list. Delivery pricing that absorbs commission, a branch with a different supplier cost, breakfast that stops at eleven — these are deliberate differences, and they belong as rules on top of a single source rather than four systems drifting apart.