Inventory Management Systems Built for Multi-Channel, Multi-Location Accuracy
Most inventory problems are not counting problems — they are synchronization problems. A company might have accurate stock counts in its warehouse management system, its ERP, and its e-commerce platform, and still oversell, understock, or ship the wrong lot, because none of those systems agree with each other in real time. The moment an order is placed on one channel, every other channel needs to know the available quantity changed — instantly, not on a nightly batch job. We build inventory management systems that function as the single source of truth for on-hand, allocated, reserved, in-transit, and available-to-promise quantities across every warehouse, store, and sales channel a business operates.
This is not off-the-shelf inventory software with your logo on it. We design the data model and business rules around how your business actually moves product — how you allocate stock across channels, what happens when a reservation expires, how backorders and pre-orders are handled, whether lot or serial or expiry tracking applies to your SKUs, and how cost is valued (FIFO, average cost, or landed cost with freight and duty). The result is an inventory core that your order management, warehouse, storefront, and marketplace integrations all read from and write to — so in stock means the same thing everywhere, every time.
Problems we solve
Overselling across channels because stock is not shared in real time
When a marketplace listing, a storefront, and an ERP each hold their own copy of quantity on hand, they drift apart the moment concurrent orders come in. A unit sells on Amazon and on the storefront within the same minute, both orders are accepted, and now one has to be cancelled or backordered — damaging trust and triggering marketplace performance penalties. Batch-based syncs (hourly or nightly feeds) do not fix this; they only narrow the window where the drift happens.
No visibility into what stock is actually available to sell
Raw on-hand quantity is not the same as sellable quantity. Units already allocated to open orders, reserved for a pending transfer, held for quality inspection, or committed to a wholesale contract all need to be subtracted before a channel is told what it can sell. Without a proper available-to-promise calculation, teams either oversell (ignoring commitments) or artificially suppress inventory just to be safe, leaving revenue on the table.
Replenishment and transfers run on spreadsheets and gut feel
Deciding when to reorder, how much safety stock to hold per SKU per location, and when to transfer stock between warehouses instead of buying more is a data problem, not a judgment call — but without a system that tracks velocity, lead times, and location-level demand, that decision defaults to whoever remembers to check a spreadsheet. The result is chronic stockouts on fast movers and excess capital tied up in slow movers, often in the wrong location.
How we approach it
A single inventory core with real-time available-to-promise
We build inventory as an event-driven core: every receipt, sale, reservation, allocation, transfer, and adjustment posts as an atomic event that immediately recalculates on-hand and available-to-promise per SKU, per location. Every connected channel — storefront, marketplaces, B2B portal, retail POS — reads from that same live number, so a sale on one channel decrements availability everywhere within the same request cycle, not on the next sync.
Reservation, allocation, and lot/serial logic matched to your operation
We model the specific mechanics your business needs: cart-level reservations with configurable expiry so abandoned checkouts release stock automatically, order-level allocation that respects FIFO or specific lot selection, and full lot/serial/expiry tracking where compliance or traceability requires it (recalls, expiration dating, warranty serials). Cost is tracked per unit or per lot under FIFO or average costing, so COGS and inventory valuation stay accurate as stock moves.
Data-driven replenishment and transfer recommendations
Safety stock, reorder points, and reorder quantities are calculated per SKU per location from actual sales velocity, seasonality, and vendor lead times — not fixed globally. The system flags when a transfer between locations is more cost-effective than a new purchase order, and surfaces replenishment recommendations inside the same interface your team already uses, so buying decisions are driven by current demand instead of a stale spreadsheet.
What you get
- Real-time available-to-promise engine spanning all warehouses, stores, and sales channels
- Reservation and allocation logic with configurable expiry, backorder, and pre-order handling
- Lot, serial, and expiry tracking for SKUs that require batch traceability or compliance
- FIFO or average-cost inventory valuation with landed cost support
- Replenishment and inter-location transfer recommendations driven by velocity and lead time
- Continuous sync connectors to marketplaces, storefront, OMS, WMS, and ERP to prevent overselling
Technologies & integrations
Our delivery process
- 01Discovery
We map every location that holds stock, every channel that sells it, and every system that currently claims to know the quantity — warehouse floor, storefront, marketplaces, ERP, spreadsheets. We identify where oversells and stockouts actually originate, and document the reservation, allocation, and costing rules your business needs.
- 02Architecture
We design the inventory data model — SKU, location, lot/serial, and cost dimensions — along with the event flow that keeps on-hand and available-to-promise numbers consistent under concurrent writes. Integration contracts with your ERP, WMS, OMS, and sales channels are specified before any code is written.
- 03Build
We build the inventory core, reservation and allocation engine, replenishment logic, and channel sync connectors in incremental releases, with each SKU category and integration validated against real transaction volume as it ships.
- 04QA & UAT
We test concurrency scenarios directly — simultaneous orders against the same unit, expiring reservations, mid-transfer stock movements, cost recalculation on receipt — and run your operations and finance teams through user acceptance testing against real SKUs and locations before go-live.
- 05Deploy & Support
We stage the cutover from legacy inventory sources with a reconciliation pass to confirm every channel agrees on quantity before go-live, then provide ongoing support and a connected client portal for full transparency into deployments, tickets, and system health.
Apparel Globe — a multi-channel operations platform
Frequently asked questions
How fast does stock actually sync across channels?
Reservations, allocations, and quantity changes post as events the moment they happen, and every connected channel reads the same live available-to-promise number — there is no batch window where systems disagree. The exact propagation time to a given marketplace or storefront depends on that channel own API, but the internal inventory core itself is updated in real time.
Can this handle multiple warehouses and retail locations with different stock levels?
Yes. Inventory is tracked per SKU per location, not as one global number, so available-to-promise, safety stock, and replenishment logic can all be location-aware. The system also recommends inter-location transfers when moving existing stock is more efficient than placing a new purchase order.
Does this replace our ERP, WMS, or order management system, or integrate with them?
It integrates with them. The inventory core becomes the authoritative source for stock quantity and valuation, while your ERP continues to own accounting and your WMS continues to own warehouse operations — each system talks to the inventory core through defined APIs rather than keeping its own disconnected copy of the numbers.
What happens to lot, serial, or expiration data for regulated or perishable products?
Where your SKUs require it, we track inventory at the lot, serial, or expiry level rather than just the SKU level, so recalls, warranty claims, and expiration-based rotation (FIFO by expiry date) are all supported natively instead of being managed in a side spreadsheet.