Receiving
ASNs, scanning against POs, damage and shortage notes
We engineer software around how your operation actually works.
Warehouse Management Software Development
For warehouses that outgrew the ERP
Slow scanners and wrong bins cost you orders. As a warehouse management software development company, we build a WMS around your layout, products and pick flows, and connect it to your ERP, sales channels and carriers. You own the code.
15+
years in business
100+
systems delivered
5+ yrs
avg. client relationship
Floor reality
Common warehouse problems
- "The system says it's in A-14. It isn't." Accuracy drops, and people spend shifts chasing stock.
- Scanners lag, so pickers go back to paper lists.
- Slotting lives in a spreadsheet only one supervisor understands.
- Every change to the ERP warehouse module is slow, expensive or impossible.
- Online orders and ERP stock don't match by the end of the day.
- New staff need weeks of training because the screens make no sense on the floor.
Honest choice
ERP module, packaged or custom?
If a packaged WMS fits most of your flow, buy it. It's the cheaper route, and we'll say so. We don't resell or set up packages. Custom pays off when the warehouse keeps working around the software instead of with it.
| Criteria | ERP warehouse module | Packaged WMS | Custom WMS |
|---|---|---|---|
| Works well when | Simple layout, low order volume | Standard picking and storage, budget for licenses | Unusual products, layouts or flows, or a WMS that always needs consultants |
| Usual complaint | Slow screens built for the office | Paying for modules you don't use; changes wait for the vendor | Takes longer to build up front |
| Who owns changes | ERP vendor or partner | WMS vendor | You |
Scanner-first
Scanner apps come first
A WMS screen that looks fine on a laptop can be painful on a handheld at 6 a.m. We design the mobile flows first and time them with your pickers:
- one scan and one confirmation for routine tasks
- big buttons and clear prompts for gloves and bad light
- the next task shows up before the last one is done
- exceptions (empty bin, damaged item, wrong quantity) take two taps, with a photo if needed
- screens keep working when the Wi-Fi drops and sync when it's back
We support barcode and QR scanning, RFID where it pays off, label printers and the Android handhelds you already own, as long as the device supports it.
Modules
WMS modules
Warehouse management system development starts with the modules your flows need first. The rest comes later. Each one runs on the same stock record.
Putaway and slotting
Suggested bins from your rules, with supervisor override
Picking
Single, batch, zone or wave picking along the shortest path
Packing and shipping
Pack checks, labels, carrier choice
Cycle counts
Counts by zone or item while the warehouse keeps working
Lot, serial and expiry
FIFO or FEFO, recalls traced to the order
Multi-warehouse
Stock by site, transfers between buildings
Cross-docking and kitting
Inbound goods sent straight to outbound; kits built and tracked as one item
Labor and tasks
Task queues, pick rates per person and shift
Dock scheduling
Inbound and outbound appointments, door assignments
Returns
Inspection, restock or quarantine, stock updated on the spot
Dashboards
Orders in progress, late picks, accuracy by zone
For 3PL warehouses we add client-level stock, billing and reporting. Client visibility portals →
By operation
Who it's for
We build custom warehouse management software for five kinds of operation:
Ecommerce fulfillment
Many small orders, same-day cutoffs, returns every day.
Distribution and wholesale
Pallets and cases, route-based loading, customer-specific labels.
3PL
Several clients in one building, each with its own rules and invoice.
Parts and production stores
Kits for the line, serial numbers, stock reserved for jobs.
Temperature-controlled goods
Expiry dates, FEFO picking and zone limits.
Integrations
Integrations
The WMS runs the floor, but stock and orders come from other systems. We connect it to your ERP, ecommerce platforms, carriers and hardware. On past projects we've worked with DHL, FedEx and EasyPost for shipping and tracking. Stock, orders and shipment status sync both ways, and a failed sync shows up as an alert. Inventory & OMS →
Retail customers that send orders by EDI can be connected too, through your EDI provider or directly.
Process
How we work
WMS software development with us goes zone by zone, so the warehouse keeps shipping.
- 01
Map the warehouse
Zones, bins, products, current flows, and where time is lost. We agree scope and cost for the first phase.
- 02
Prototype the scanner flows
Your pickers try them on a handheld before we build the back end.
- 03
Pilot one zone or process
Such as receiving, while the rest of the warehouse runs as usual.
- 04
Count and compare
Physical counts confirm the new system matches the shelves.
- 05
Roll out zone by zone
With extra support on the floor in the first weeks.
- 06
Support and improve
We fix issues, add features and adjust rules when your layout changes.
Cost
Cost and timeline
The cost of WMS development depends on how many processes go into the first phase, sites, integrations, hardware and data migration. A scanner app on top of your current system costs far less than a full multi-site or 3PL WMS. You get a written estimate after the warehouse mapping.
KPIs
Results we track
We agree on the numbers before we build, so both sides can see what changed:
- inventory accuracy by zone
- picks per hour, per person and shift
- mis-picks and short shipments
- dock-to-stock time for inbound goods
- order cycle time, from release to truck
Why us
Why us
A WMS that stops means trucks that wait. That's why buyers are wary of bespoke systems. With us you own the source code, data and documentation. We run automated tests on stock rules, picking and counts before each release, plus a way back to the previous version. Role-based access, encrypted data and backups. Cloud hosting or your own servers. After go-live we stay on call with agreed response times. AI helps us write and test code faster. Our engineers review every change and stay responsible for it.
Proof
Related projects
We don't have a published WMS case yet. Adjacent work that transfers: inventory and order logic from retail projects, offline field apps, and logistics systems.
Aviation field ops · offline tablet app
Vestergaard
Field software that keeps working without a connection and syncs when signal returns — the same pattern scanner flows need on the warehouse floor.
View case study →
Auto-transport logistics · CRM and quoting
Movewheels
Auto transport CRM with quoting, carrier boards and shipping connections.
View case study →Related: TMS · Logistics hub
Engagement
Ways to work with us
It can start with one site and one process.
Fixed-scope phase
One site or one process, with an agreed plan and price.
Dedicated team
For a WMS that keeps growing with new sites and clients.
Team extension
Our engineers join your developers on the system you already run.
Awards & Recognition
CLIENT REVIEWS
What operations teams say about systems we ship
“We know our project is complicated because we need to integrate and make different systems work. The work meets our expectations, and we haven't identified any data gaps.”
“Attract Group delivered a high-quality product on a tight deadline. They continue to impress with their knowledge on all things related to development. They're very professional and easy to communicate with.”
“I'm most impressed with Attract Group's commitment. The work meets our expectations, and the new app offers great flexibility for future improvements and better customer service.”
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FAQ
WMS FAQ
How much does custom WMS development cost?+
It depends on processes, sites, integrations and hardware. A scanner app on top of your current system costs far less than a full WMS. You get an estimate after we map the warehouse.
How long does WMS development take?+
A first site usually goes live in a few months. The pilot zone runs much sooner, so the team sees results early.
Will scanners slow our pickers down?+
They shouldn't. We time each flow with your team before rollout, and change any step that's slower than paper.
Can the WMS match our actual layout?+
Yes. Zones, bins, pick paths and slotting rules are set up for your building, and they change when the layout does.
How much downtime does go-live need?+
Usually none for the whole warehouse. We roll out one zone or process at a time. A full physical count may need a short pause, planned with you.
Can we keep our ERP?+
Yes. The ERP keeps finance and purchasing. The WMS runs the floor and sends stock and shipment updates back.
Do we need new hardware?+
Not always. We start with the scanners and printers you have and only suggest new devices if the old ones block a flow.
Cloud or on-premise?+
Either. Cloud is easier to maintain. On-premise suits sites with weak internet or strict IT rules, and the scanner app works offline in both cases.
Why hire a warehouse management software development company instead of buying a WMS?+
Buy when a packaged WMS fits your flows. Build when you keep paying for workarounds, or when your products and processes need rules a package can't hold.
Where does your warehouse lose time?
Walk us through a day: receiving, picking and shipping. We'll point out where the system slows people down and what to fix first.
Or call us directly:+1 888-438-4988