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A is a physical pull signal represented by a printed card, QR code, or URL. It links an item, location, storage unit, and reorder quantity. Scanning the signal creates the purchase order, job, or stock transfer needed to refill the bin. A reordering policy calculates suggestions from on-hand quantity, demand, and reorder points. Kanban replenishment is direct: a signal creates a real document immediately. Use policies for planning-driven replenishment and kanban for shop-floor pull.

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What a kanban holds

Each kanban is a small record: an item, where it lives, how much to reorder, and how to reorder it. On a Transfer kanban, the form adds a From Storage Unit beside the To Storage Unit.

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The scan flow

Each kanban has scan targets for order, start, and complete. A scan opens a URL, runs the action, and redirects to the resulting document. QR codes are black for order, emerald for start, and blue for complete. The order scan (the create signal) branches on the replenishment system:
Start and complete scans only apply to Make kanbans. They resolve the linked job’s active operation and hand off to the MES operation start / complete screens, so an operator can drive the whole build from the same card that created the job.

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Output format

How a card is rendered is a per-company setting, Kanban Output (under Settings → Inventory), with three modes: For Make kanbans, the list view also surfaces the start and complete affordances. Buy and Transfer kanbans show only the order signal, since there’s no job to start.

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Kanban vs. reordering policy

Both replenish stock, but they’re different tools: