Picking errors, stock that exists in the system but not on the shelf, and orders that miss the truck usually come from software that doesn't match the warehouse floor.
Codersarts warehouse management system development builds WMS software around your layout, products and order profile, with scanner apps your team can learn in a shift.
What Is a Warehouse Management System?
A warehouse management system (WMS) controls inventory and work inside a warehouse. It records receiving and putaway, tracks stock by location, lot, batch or serial number, creates picking waves and pick paths, guides packing and labeling, confirms shipping, runs cycle counts and, for 3PLs, bills clients for storage and handling.
Who This Is For
3PL and fulfillment warehouses
Distributors and wholesalers
Ecommerce brands running their own warehouse
Manufacturers with raw material and finished goods stores
Cold chain and pharmaceutical warehouses
What We Build
Receiving and putaway
ASNs, inspection and directed putaway.
Inventory
Locations, lots, batches, expiry and serial numbers.
Picking
Waves, batches, zones and optimized pick paths. See graph algorithms.
Packing and shipping
Packing checks, labels and carrier booking.
Scanner apps
Android scanner and mobile apps for barcode and RFID.
3PL billing
Storage, handling and value-added service charges per client.
Integrations
ERPs, stores and marketplaces. See ERP and inventory integration.
WMS Options Compared
Option | Best for | Watch out for |
|---|---|---|
Inventory module in ERP | Small single-site stores | Limited picking and scanning |
SaaS WMS | Standard warehouse operations | Per-user or per-order fees and fixed workflows |
Custom WMS | 3PLs, unique processes or a WMS product | Higher upfront cost |
Common WMS Problems We Fix
Problem | Usual cause | Fix |
|---|---|---|
Stock in system but not on shelf | No location-level tracking | Location and cycle count rules |
Picking errors | No scan confirmation | Scanner app with verification |
Orders oversold online | Inventory not synced | |
Scanners slow on the floor | Heavy screens and slow APIs |
How Much Does a Custom WMS Cost?
Cost depends on warehouse processes, number of sites, scanning hardware and integrations.
Scope | Typical timeline | Typical cost |
|---|---|---|
Scanner app or WMS module | 6 to 12 weeks | $15,000 to $45,000 |
Core WMS for one site | 4 to 7 months | $60,000 to $140,000 |
Multi-site WMS with 3PL billing | 8 to 12 months | $140,000 to $300,000+ |
What changes the cost: processes covered, sites, lot and serial tracking, scanning hardware, automation equipment and integrations.
Ranges are typical for a global team. Your price is fixed after scoping, before any work starts.
Ways to Start Small
Starting point | Best for | From |
|---|---|---|
Faster scanner screens | $199 | |
Faster stock lookups | $199 | |
A ranked bug list for an existing platform | $199 | |
Ongoing fixes with a fixed budget | $290 for 10 hours |
How We Work
Walk the floor. Layout, products and order profile.
Design. Receiving-to-shipping flows and scanner screens.
Build. Core modules and scanner apps.
Integrate. ERP, stores and carriers.
Pilot. One zone or client first.
Go live. Training, cutover and support.
What You Receive
A WMS that matches your warehouse
Scanner apps for your team
Accurate location-level inventory
Carrier and ERP integrations
Documentation and code ownership
Example Engagement: WMS for a 3PL
An illustrative example based on the pattern we see most often. Client details are kept confidential.
The situation: A 3PL ran three client warehouses on spreadsheets and paper pick lists, and billed clients by hand each month.
What we did:
Built receiving, location tracking and scan-confirmed picking
Connected client stores and marketplaces
Automated storage and handling billing
The result: Picking errors dropped, inventory matched the shelves, and monthly billing took hours instead of days.
Mistakes to Avoid
Designing screens without watching the floor
Skipping location-level inventory
Ignoring offline scanning
Going live across all sites at once
Why Codersarts
Web, mobile, integration and AI engineers in one team
Routing, tracking and real-time data treated as engineering problems, not features to bolt on
Fixed-price tasks for small jobs, so you can start without a large contract
Integrations with carriers, ERPs and telematics handled properly
You own all code, data and accounts
Frequently Asked Questions
How much does a custom WMS cost?
A core WMS for one site typically costs $60,000 to $140,000.
Do scanner apps work offline?
Yes, they can queue scans and sync when the connection returns.
Can a WMS bill our 3PL clients?
Yes, for storage, handling and value-added services by client contract.
Can it connect to Shopify and marketplaces?
Yes, along with ERPs and carriers.
Related Pages
Supply chain management software: planning across sites.
Logistics app development: scanner and driver apps.
Logistics solutions: every logistics service in one place.
Make Your System Match Your Shelves
Tell us about your warehouse and order volumes, and we'll plan your WMS.