E-CALL-OFF · Multi-tenant · Real time
Optimize your supply chain
LeanExchange digitizes the full physical lifecycle of your supplier call-off with open visibility — print, fill, ship, receive, consume — and routes replenishment demand to the right supply company the moment a card empties.
- Dash Boards
- Planning & Supply
- Six Tracking Points
- Instant visibility
- Live Call-off
- For replenishment

Replace paper kanban with automated supplier call-off
Automated Call-off
Consumed inventory automatically calls a replenishment at supply facility.
Live Dashboards
Live dashboards show your planners and your suppliers the live movement of inventory.
Mobile tracking
LeanExchange prints barcoded tracking labels with LPN# and uses any cell phone to transact through the supply chain.
The 25-second tour
Watch the loop close itself.


25s reel · loops automatically · muted, no audio
The lifecycle
One continuous loop.
Every card carries a barcode or QR code. Each scan advances its state and updates the live boards on both sides of the exchange instantly.
- 01
Consume
Product consumed on your floor automatically generates barcode labeled supply call-offs.
- 02
Supplier Print
Cards generated from stock codes with scannable QR.
- 03
Supplier Fill
Filled cards are scanned on a mobile app (cell phone).
- 04
Supplier Ship
Scan out — the card moves in transit, visibly.
- 05
Receive
Receiving dock scans cards to confirm inventory is on site
- 06
Locate
Inventory is scanned into the Supermarket or pick face bin.
- 07
Consume
The loop continues… never stock-out again!
Two tenants, one exchange
A Planning board for the plant. A Print board for the supplier.
Customer tenants consume parts at their supermarket locations. Supply company tenants fulfil that demand. A single company can be both — and visibility is scoped entirely to the parts the two sides have explicitly linked.
- Suppliers only ever see demand meant for them
- Live status on both boards, no refresh, no reconciliation
- Linked parts define the relationship — nothing is shared by accident


The platform
Built for small and mid-sized manufacturers and distributors.
Configure supermarkets once
Set up locations, stock codes and card quantities a single time. Every card thereafter follows the rules you defined — no spreadsheets, no re-keying.
Mobile scanning on the floor
Barcode and QR scans in the mobile app drive every status change. Operators do what they already do — the system records it.
Scoped supplier visibility
Visibility is limited to explicitly linked parts. A supply company sees only the demand meant for them — nothing else on your board.
Low monthly cost
A flat monthly fee per supermarket of $49 plus a per-card-printed fee, billed monthly. Be live for under $100 per month.
Support without leaving the app
Support ticketing is built in, so a plant manager raises and tracks an issue from the same screen they work in.
Customer and supply tenants
Consume parts, fulfil them, or do both. One company, one login, both sides of the exchange.
Pricing
You pay for locations and cards. Nothing else.
Billing runs monthly and syncs straight into QuickBooks Online, so your controller sees the invoice where they already work.
Per month
Flat Fee $49 / supermarket location
Unlimited users, unlimited scans, both boards included.
Usage
49c Per card printed
Only when a physical card is issued. Reprints of a damaged card, not a new charge.
See your own supermarket running on LeanExchange.
A 30-minute walkthrough with one of your part numbers and one of your suppliers. No rip-and-replace of your ERP.