Custom Inventory Management Software Development
Most companies outgrow spreadsheet stock control at a predictable moment: the day two people sell the same unit. Inventory is usually the first module worth building, because the pain is sharp and the boundaries are clean.
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Stock by location
Not one number per product. Quantity per warehouse, per bin, per van — because "we have twelve" is useless when nine are three hundred miles away.
Movements, not balances
Every change recorded as a transaction with a reason: received, sold, transferred, adjusted, written off. Current stock is derived from the movements, which is what makes a discrepancy traceable rather than merely visible.
Reservations and available-to-promise
The distinction that prevents overselling. On hand, reserved against orders, and genuinely available are three different numbers and a sales team needs the third.
Barcode scanning
On phones or rugged handhelds, for receiving, picking and counting. Typing SKUs is where errors enter the system.
Stock counts
Full and cycle counts with variance reporting and a reason code on each adjustment, so counts become an audit rather than an overwrite.
Reorder points
Minimum levels and lead times per supplier, generating purchase suggestions rather than waiting for someone to notice a gap.
Batch, lot and serial tracking
Where you need to know which batch went to which customer. A regulatory requirement in food, pharmaceutical and medical supply, and a recall capability everywhere else.
Valuation
FIFO, weighted average or standard cost, consistently applied, so your stock figure survives contact with your accountant.
Integrations
- Sales channels: Shopify, WooCommerce, Amazon or your own store, so stock decrements on sale rather than on someone noticing.
- Accounting: QuickBooks, Xero or Sage, for stock valuation and cost of goods sold.
- Shipping and carriers, for labels and tracking, with fulfilment writing back to the order.
- Supplier systems, where they support electronic ordering rather than email and a PDF.
- Your own CRM or job management, so a quote can check real availability before it is sent.
Built to grow into an ERP
Inventory is a sensible first module precisely because it is a foundation. Purchasing sits directly on it, since a purchase order is a promise of future stock. Production sits on both, since a work order consumes components and produces finished goods. Sales order management needs available-to-promise, which inventory already calculates.
So we build it with that trajectory in mind: a schema where products, locations and movements are first-class rather than improvised; permissions and audit trails already in place; and an API from the start rather than retrofitted when the second module needs it. None of that adds much to the first build, and it is the difference between a second module that extends a system and a second module that integrates with an obstacle.
It is also entirely reasonable to stop after inventory. Plenty of businesses need accurate stock and nothing else, and a system that does one thing properly beats a half-finished ERP. We would rather you stopped there than felt committed to a programme you did not need.
Common questions
Tell us what you need
Describe the problem and we will come back with scope, timeline, and a rate. No obligation to proceed.
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