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Tell us your product structure, location setup, and what your current system can't do. We'll scope the right system and give you a fixed cost.
Off-the-shelf system not supporting your product structure, lot tracking, or multi-location requirements?
Manual stock reconciliation between systems that should be integrated but aren't?
Inventory Management Software Development
Off-the-shelf inventory management systems are built for the average warehouse, the average product catalogue, and the average supply chain. If your inventory operation has specific requirements -- multi-location stock management, kitting and assembly, lot and serial tracking, industry-specific compliance, or integration with systems your off-the-shelf vendor doesn't support -- you end up working around the tool.
We build custom inventory management software around your specific product catalogue, fulfilment operation, and system integrations -- not a generic system you adapt your operation to fit.
Custom inventory management systems built for your specific stock structure and fulfilment operation
Multi-location inventory, lot tracking, serial tracking, and kitting/assembly support
Integration with your ERP, WMS, e-commerce platform, and supplier systems
Full source code ownership -- no per-location or per-user SaaS pricing that scales against you
RaftLabs builds custom inventory management software for businesses with specific requirements that off-the-shelf systems don't support -- multi-location inventory, lot and serial number tracking, kitting and assembly, batch management, and custom integrations with ERP, WMS, and e-commerce platforms. Custom inventory management systems are appropriate when your operation outgrows generic tools or requires industry-specific compliance (FDA lot traceability, regulated materials). Most inventory management software projects deliver in 8--16 weeks at a fixed cost with full source code ownership.
Your inventory operation is specific. Your inventory system should be too.
A distribution centre with 50,000 SKUs across six locations has different inventory management requirements than a pharmaceutical manufacturer tracking lot expiry dates across a regulated supply chain, which has different requirements than an electronics assembler managing components for kitting. Generic inventory systems make trade-offs that may not match your operation.
Custom inventory management software makes no trade-offs -- it's built for your product catalogue, your locations, and your compliance requirements.
What we build
Multi-location inventory management
Unified inventory visibility across warehouses, retail locations, 3PL partners, and in-transit stock. Location-specific stock levels, stock transfer workflows, and allocation rules that determine which location fulfils which orders. Cross-location reporting for buying decisions. Automated stock transfer triggers when a location falls below reorder point.
Lot, serial, and batch tracking
Full forward and backward traceability for lot-tracked and serial-tracked inventory. Lot receipt with supplier lot number capture, FIFO/FEFO stock rotation enforcement, lot expiry date management, and lot-specific quality hold workflow. Serial number tracking from receipt through sale with full chain of custody. Recall management -- identify all locations and customer orders containing a specific lot in seconds.
Kitting and assembly management
Bill of materials management for kits and assembled products. Component reservation and allocation when a kit order is received. Assembly work order workflow -- pick list generation, component deduction, finished good receipt. Phantom BOM support for virtual kits (assembled at order time without a formal work order). Kit cost roll-up from component costs.
Purchase order and receiving
Purchase order creation, supplier confirmation tracking, advance ship notice processing, and goods receipt with variance detection. Three-way match validation (PO, ASN, receipt) with discrepancy workflow for quantity and condition differences. Lot and serial number capture at receipt. Supplier performance tracking: on-time delivery, fill rate, and quality rejection rate.
Stock counting and reconciliation
Cycle count scheduling and management -- location-based count plans, count entry workflows, variance detection against system quantities, and adjustment authorisation. Physical inventory count support for full wall-to-wall counts. Blind count option (count entry without showing system quantity). Automatic recount trigger for high-variance items.
Reporting and demand planning
Inventory performance reporting: stock turn by category, days of cover, slow-moving and dead stock identification, and shrinkage analysis. Demand-based reorder point calculation using historical sales velocity and supplier lead time. Replenishment recommendation reporting to support buying decisions. Custom reporting on the specific metrics your operation tracks.
Inventory management built around your operation, not around what the vendor allows
Custom systems for complex stock structures, multi-location operations, and compliance requirements. Fixed cost.
How we build inventory management systems
Operations workflow design
Before building, we document your current inventory workflows -- receipt, putaway, picking, packing, despatch, returns, and counting -- and identify the gaps between current operations and the system you need. Inventory software that matches your actual workflows takes less user training and produces cleaner data than software that imposes a generic workflow.
Data migration planning
Switching inventory systems requires migrating current stock quantities, product catalogue, supplier records, and historical transaction data. We plan the data migration during scoping -- what to migrate, how to validate migrated data against source records, and how to manage the cutover so your operation doesn't have a gap period. Data migration is often where inventory system implementations fail.
Integration with your ecosystem
Inventory management lives at the intersection of purchasing, warehousing, sales, and finance. We integrate the inventory system with your ERP for financial posting, your e-commerce platform for order management, your WMS for warehouse operations, and your supplier systems for EDI or API-based purchase order and shipment data exchange.
Testing against real data and scenarios
We test the inventory system against your real product catalogue and operational scenarios before go-live: receiving a multi-lot shipment, processing a sales order that depletes multiple lots, conducting a cycle count with variances, and generating a lot recall report. Testing against edge cases in your actual operation, not generic test scenarios.
Inventory management that fits your operation, not the other way around
Custom stock management for complex product structures, multi-location operations, and compliance requirements.
Related services
Inventory Management System -- inventory management platform development
Custom Software Development -- bespoke software development
ERP Development -- enterprise resource planning systems
Supply Chain Software Development -- end-to-end supply chain platforms
Business Systems Integration -- connecting your business systems
Frequently asked questions
Custom inventory management makes sense when: (1) Your product structure is complex -- kits, assemblies, configurable products, or products with lot, serial, or expiry date tracking requirements that off-the-shelf systems handle poorly. (2) You operate across multiple locations (warehouses, stores, 3PLs) and need a unified inventory view your current system doesn't provide. (3) You need deep integration with systems your off-the-shelf vendor doesn't support -- a custom ERP, a bespoke WMS, or industry-specific platforms. (4) SaaS pricing at your stock level or user count has become unsustainable. (5) Industry compliance requirements (FDA lot traceability, ISO-regulated materials, hazardous materials tracking) need specific data capture your current system doesn't support. Many businesses get to a point where customisation costs and workarounds exceed the cost of building what they actually need.
Lot tracking is the ability to trace a product back to the specific production batch (lot or batch number) from which it came, and to track that lot through your supply chain from receipt through sale. You need lot tracking when: quality recalls require you to identify and retrieve all units from a specific production run, regulatory requirements mandate batch traceability (FDA, pharmaceutical GMP, food safety), your purchasing records need to associate received stock with specific supplier lots for quality management, or your costing requires FIFO or FEFO inventory costing by lot. We implement lot tracking with full traceability -- forward trace from a lot to all sales, backward trace from a sale to the originating lot and supplier.
Custom inventory management integrates with the systems your operation depends on: ERP systems (SAP, Oracle, NetSuite, Microsoft Dynamics) for financial posting and purchase order management; e-commerce platforms (Shopify, Magento, WooCommerce) for order management and stock deduction; WMS systems for warehouse operations data; supplier portals via EDI or API for purchase order acknowledgement and advance ship notices; and accounting platforms for inventory valuation. We design the integration architecture during scoping and implement the right approach for each system -- API integration where available, EDI for supply chain partners, and database integration for on-premise systems.
A focused inventory management system -- one warehouse, core stock management, basic supplier and purchase order management, and integration with one e-commerce platform -- typically runs $20,000--$60,000. A full inventory platform with multi-location management, lot tracking, kitting, WMS integration, and ERP financial posting typically runs $60,000--$150,000. Cost depends on the complexity of your product structure, the number of locations and systems to integrate, and the compliance requirements. We scope every project before pricing it.