Warehouse management software built for how your floor actually moves.
Warehouse management software (WMS) tracks and directs everything that happens inside a warehouse, from receiving and putaway to inventory, picking, packing, and shipping. Kadmoon builds a custom WMS around your layout and process, with barcode scanning, real-time stock, and clean integrations to your ERP and carriers, and you own the code and infrastructure on delivery.
The problem
Packaged WMS products assume a standard warehouse, so teams fall back on paper pick lists, spreadsheets, and tribal knowledge to bridge the gap. Stock counts drift from what is on the shelf, pickers walk longer routes than they need to, and mis-ships slip through because scanning is optional or bolted on. When the WMS does not match the floor, every peak season exposes the same manual workarounds.
How we build it
We start on the floor, not in a template. We map your receiving docks, bin layout, pick paths, and shipping lanes, define measurable acceptance criteria per flow, and build in two-week sprints with a working demo each cycle. Scanning, real-time stock, and carrier integration are designed in from the first module, so accuracy is built into the process rather than patched on later.
Barcode scanning at every step
Receiving, putaway, picking, and packing confirmed by scan, so the system reflects the shelf and mis-picks get caught before they ship.
Real-time stock, one source of truth
Every move updates inventory instantly by location and lot, so counts stay accurate and your ERP and storefront see the same numbers.
Pick paths tuned to your layout
Wave, batch, and zone picking with routes built around your bin map, cutting walk time instead of forcing a generic flow.
ERP and carrier integrations done properly
Orders, inventory, and shipments sync with your ERP, and label and rate integrations connect the carriers you actually use.
Runs on the hardware you have
Built for the handheld scanners, tablets, and label printers on your floor, and usable offline when the signal drops in the racks.
You own it
Source code, infrastructure, and documentation are yours on delivery. No per-seat lock-in and no per-transaction fees.
What we build
Inbound and inventory
- Receiving against purchase orders and ASNs
- Directed putaway and bin location management
- Real-time stock by location, lot, and serial
- Cycle counts and stock adjustments with audit trails
Outbound and fulfillment
- Wave, batch, and zone picking
- Scan-verified pack and carton content checks
- Rate shopping, label generation, and manifesting
- Returns intake and restocking
Scanning and floor devices
- Barcode and QR scanning on handhelds and tablets
- Offline-tolerant workflows that sync on reconnect
- Label and packing slip printing
- Role-based access for floor, leads, and admins
Integrations and visibility
- ERP, e-commerce, and OMS synchronization
- Carrier and shipping API integrations with retries
- Dashboards for throughput, accuracy, and backlog
- Alerts for low stock, aging orders, and exceptions
Who it is for
- Distributors and 3PLs outgrowing spreadsheets or a rigid packaged WMS.
- E-commerce and omnichannel operations that need real-time stock across sales channels.
- Warehouses whose layout or process does not fit an off-the-shelf product.
Frequently asked questions
What is warehouse management software?
Warehouse management software, or WMS, is a system that tracks and directs the work inside a warehouse: receiving goods, putting them away, holding accurate inventory by location, and picking, packing, and shipping orders. It usually pairs with barcode scanning so each move is confirmed against the physical stock, keeping counts accurate in real time.
Is a custom WMS better than an off-the-shelf system?
It depends on how closely your operation fits a packaged product. Off-the-shelf WMS platforms are the right call when your process matches their model. A custom WMS wins when the standard product forces paper workarounds, when your layout or fulfillment model is unusual, or when per-seat and per-transaction fees climb faster than the value. Many teams also keep an ERP and build a custom WMS around it.
How does a WMS integrate with our ERP and carriers?
The WMS syncs orders, inventory, and shipment data with your ERP or OMS so both systems share one source of truth, and it connects to carrier APIs for rating, labels, and tracking. We build these integrations with retries and monitoring so a dropped connection does not lose a shipment or leave stock counts out of sync.
How much does custom warehouse management software cost?
Cost tracks scope: the number of flows, integrations, sites, and the device and scanning setup on your floor. A focused WMS for a single warehouse costs far less than a multi-site platform. We scope the build with acceptance criteria per flow, so the price maps to work you can verify.
How long does it take to build a custom WMS?
A first usable flow, often receiving or picking, commonly ships in a few months, with a working demo every two weeks. The full system grows in phases rather than one long build, so your floor gets value from early modules while shipping and integrations are still in progress.
Planning a warehouse management software project?
Tell us about your operation and get a technical proposal within one business day.