Stock counts that never quite match the shelf. The marketplace order that sold something you’d already run out of. Hours lost to exporting from one system and re-keying it into another. A warehouse layout your software has never heard of. If any of that sounds familiar, you’ve probably already discovered that most off-the-shelf inventory tools expect you to work their way, not yours.
These problems usually arrive at predictable moments: when spreadsheets stop coping, when you open a second location, when you add another sales channel, or when an audit turns up gaps in your records. That’s normally the point a business starts looking for proper inventory software.
We build inventory management systems to fit how your business actually runs. The software is developed in the UK, it connects to the systems you already use, and it changes as your operation changes. We’re a small London consultancy, and we spend our time on one thing: building automation that gives SMEs back the hours they’re currently wasting.
Where off-the-shelf inventory software runs out of road
Platforms like Zoho, Cin7, Unleashed and Fishbowl do a decent job for plenty of businesses. But growing UK operations tend to hit the same set of walls:
- Rigid workflows. Approval chains can’t be set by order value, supplier or product category. Reorder rules are fixed, so your buyers end up overriding them in spreadsheets anyway.
- Per-user pricing that climbs. The headline tier looks affordable. Then the team grows, everyone needs access for compliance, and the monthly bill multiplies. Add-on modules for manufacturing, BOMs or advanced reporting carry their own fees on top.
- Shallow integrations. A library of “700 integrations” sounds great until each one needs setup, breaks when Shopify or Xero changes an API, and only syncs half of what you need. Stock syncs but not cost data; orders sync but not the COGS your accountant relies on.
- Sync gaps that cause overselling. Many platforms sync hourly or daily rather than in real time. On a busy day that’s enough to sell stock you no longer have, or hide stock a customer would have bought.
- Generic reporting. Standard turnover and aging reports are fine until you need ABC analysis, supplier performance, or a KPI your business actually runs on. Then you’re exporting to Excel again.
- Weak UK fit. Data hosted in US data centres, audit trails that can’t prove who changed what, and accounting connectors that favour QuickBooks over Sage or Xero.
You end up with spreadsheets on the side, slower work, and a system you’re working around instead of working with.
When SaaS is the right call
We won’t talk you into a custom build you don’t need. If you run a single location or two, sell through one or two channels, have a fairly predictable catalogue and no real manufacturing, an off-the-shelf platform is usually the sensible, cheaper choice. Custom development earns its keep when several things are true at once: multiple warehouses, bespoke approval or reorder logic, assembly or BOMs, niche compliance, integrations a vendor won’t support, or a business changing faster than a vendor’s roadmap can follow.
What you get when ByteGears builds it for you
We build inventory systems that change how the day-to-day actually goes:
Built around your process
We map your current workflows before anyone writes code, so the software fits what you do. Your approval chains, your reorder logic, your receiving checks and your picking rules go into the system as they are, rather than being flattened into a vendor’s template.
Priced for your team, not per seat
A single development cost instead of a subscription that climbs every time you hire. A 60-person warehouse costs no more to run than a 20-person one. There are no per-integration fees and no add-on module charges waiting for you later.
Connected properly to the rest of your stack
We build native connections to your accounting software, e-commerce platforms, marketplaces, POS and UK carriers, and we sync the data that actually matters, including cost and COGS, not just stock counts.
UK compliance from the start
UK GDPR, a complete audit trail, consistent stock valuation for HMRC, and lot or batch traceability where your sector needs it. Data can stay hosted in the UK or EU.
Room to grow
The system is modular. Go live on the core early, then add multi-warehouse transfers, demand forecasting, manufacturing or extra integrations as the business needs them.
Support you can actually reach
We’re in the UK. You get same-day responses and someone who understands UK business context, not a ticket queue in another time zone working through a 48-hour backlog.
Features we build into inventory management systems
What goes into your system depends on your operation. These are the building blocks we work from.
Real-time stock tracking
On-hand, available and reserved quantities across every location, updated as they change, so you’re not caught short or sitting on cash tied up in dead stock.
Barcode and QR scanning
Scan from a phone or handheld for receiving, picking and putaway. Fewer typos, faster work, and barcode label printing built in.
Receiving and quality checks
PO matching on receipt, quantity inspected against quantity accepted, and lot or expiry numbers assigned as goods come in.
Automated reordering
Reorder points, reorder quantities and safety stock per SKU, with purchase orders raised automatically when stock drops. Lead times feed the calculation, so the suggestions stay realistic.
Multi-channel sync
One source of truth across shop floor, website, marketplaces and wholesale accounts, so the same unit can’t be sold twice.
Stock takes and cycle counts
Scheduled counts without shutting the warehouse, with variance reporting so discrepancies get investigated rather than quietly written off.
Custom reporting and dashboards
Turnover, inventory aging, ABC analysis, SKU-level margin, supplier on-time performance, whatever you actually run the business on, laid out the way you want to see it.
Batch, lot and expiry management
Full traceability for food, healthcare, pharmaceutical and chemical businesses, with FIFO rotation, expiry alerts and recall workflows to isolate an affected batch quickly.
Manufacturing and BOMs
Bills of materials, component requirements and work orders for businesses that assemble or produce, not just resell.
Role-based access controls
Permissions by role so warehouse, office and finance staff each see and change only what they should.
Integrations built to fit
Native connections to accounting, e-commerce, POS, marketplaces and carriers, plus a clean API for anything else, rather than a pile of loosely coupled third-party connectors.
Mobile access
Check stock, process orders and scan items from a phone or tablet, designed around staff who are on the warehouse floor or in the field, not sat at a desk.
Full audit trail
Every movement, adjustment and transfer recorded with the user, timestamp and reason, for compliance and for tracking down where stock actually went.
How a build runs
We work in clear stages and start you live on a focused core rather than waiting for everything at once.
Discovery and planning (2 to 4 weeks)
We sit down with your team, learn how things work now, where it hurts, and where you’re heading. We also look hard at your existing data, because messy SKUs and stock discrepancies are where inventory projects usually come unstuck.
Build the core (12 to 16 weeks for an MVP)
Our UK developers build the working heart of the system first: stock tracking, receiving, picking, purchase orders, basic reporting, role-based access and an accounting sync. You’re live and productive on this before the bigger features arrive.
Migration and cutover
We clean and deduplicate your SKU data, map it across, and validate stock levels against a physical count before go-live. Cutover is timed away from peak trading to keep the window of inventory blindness short. Roughly 70% of inventory migrations slip because of data issues, so we treat this as real work, not an afterthought.
Testing and go-live (2 to 4 weeks)
Proper QA and user acceptance testing with your team, so the switch-over isn’t a drama and the reports match the KPIs you already track.
Phase two and ongoing support
Once the core is steady, we add what’s next: multi-warehouse transfers, manufacturing and BOMs, demand forecasting, supplier performance, advanced approval workflows and further integrations. UK support stays available throughout.
A well-scoped MVP is usually 12 to 16 weeks. A fuller multi-location or manufacturing build typically runs 4 to 9 months, depending on how complex the integrations and workflows are.
What it costs, and why it’s worth it
Custom development costs more up front than a SaaS subscription. The honest comparison isn’t the headline subscription price, though, it’s the total cost of running the system over five years.
SaaS pricing tends to grow in ways that aren’t obvious on day one: per-user licences as you hire, per-integration fees, add-on modules for manufacturing or reporting, implementation and data migration charges, and annual support contracts. For a multi-location, multi-channel operation those add up, and you’re still renting.
A custom build trades that for a known scope:
- No per-user pricing. The cost doesn’t climb as the team grows. That’s often where custom pulls ahead of enterprise SaaS over time.
- No surprise fees. No charge per integration, no add-on module unlocks, no overage bills.
- No vendor lock-in. You own the code and the data. No forced migration when someone else changes their roadmap or pricing.
- Fewer workarounds. The spreadsheets and manual re-keying that quietly eat your team’s hours go away.
- It’s an asset. The system sits on your books as something you own, not a recurring line in next year’s budget.
Price depends on scope. A single-location system with standard integrations is a smaller project than a multi-warehouse build with manufacturing and bespoke compliance. We’ll give you a real estimate after a free consultation where we understand what you actually need, and we’ll tell you plainly if an off-the-shelf platform would serve you better.
Industries we build for
Inventory work looks different in every sector. Where a custom build pays off:
- Retail and e-commerce: keeping online, shop-floor and marketplace stock in step so the same unit isn’t sold twice, with replenishment that copes with seasonal peaks like Black Friday and Christmas.
- Manufacturing and distribution: raw materials, work in progress and finished goods across multi-tier warehouses, with bills of materials, work orders and landed cost feeding accurate COGS.
- Wholesale: large SKU counts across several warehouses, B2B order workflows, and supplier performance tracking.
- Healthcare: medical supplies with expiry alerts and FIFO rotation, lot traceability for recalls, and audit trails on every movement across clinics and pharmacies.
- Food and drink: lot and batch tracking with supplier and date detail, allergen segregation, shelf-life management and recall workflows to support HACCP.
- Pharmaceuticals: lot expiry management, serialisation and full user-attributed audit trails.
- Construction and equipment hire: tools, plant and materials tracked across job sites, inventory allocated to projects, and serial numbers tied to warranty and maintenance history.
- Logistics and warehousing: zone-based picking and put-away rules, cycle counting without shutdowns, and returns handling from receipt through to restock or scrap.
Whatever your sector needs, we build it in from the start rather than waiting for a vendor to prioritise it.
Common Questions About Custom Inventory Management Systems
Should we build custom or just use a SaaS inventory platform?
For a single location with a straightforward catalogue and predictable demand, a platform like Zoho or Cin7 is usually the sensible choice, and we'll tell you so. Custom tends to pay off once you have several of these: multiple warehouses, specific approval chains, manufacturing or BOMs, niche compliance, integrations a vendor won't support, or a business that changes faster than a vendor roadmap can keep up with.
How does custom development cost compare to SaaS subscriptions?
A custom build is a larger cost up front, but it isn't priced per user, so it doesn't get more expensive as your team grows from 20 people to 60. SaaS looks cheap on the headline tier, then climbs through per-user licences, per-integration fees and add-on modules for manufacturing or advanced reporting. For multi-location, multi-channel operations the total cost over five years is often comparable, and you own the system at the end.
What's the typical development timeline?
A well-scoped MVP (stock tracking, receiving, picking, purchase orders, basic reporting and an accounting sync) usually takes around 12 to 16 weeks. A fuller multi-location or manufacturing build typically runs 4 to 9 months. We phase the work so you go live on the core early and add multi-warehouse, forecasting or BOMs afterwards.
Can you integrate with Xero, Sage, Shopify and our other systems?
Yes. We build native connections to accounting platforms (Xero, QuickBooks, Sage), e-commerce and marketplaces (Shopify, WooCommerce, Amazon, eBay), POS systems and UK shipping carriers like Royal Mail, DPD and Parcelforce. Because we build the connectors, we can match your real sync needs and keep them maintained when third-party APIs change.
How do you handle the switch-over from our current system?
Migration is usually the hardest part of any inventory project. We plan it carefully: cleaning and deduplicating your SKU data, validating stock levels against a physical count, and timing cutover away from peak trading. We aim to keep the window of inventory blindness short and avoid the months of post-launch data cleanup that derail rushed migrations.
What about data security and UK compliance?
Solutions are built with UK GDPR in mind, including data encryption, role-based access and a full audit trail of who changed what and when. We can keep data hosted in the UK or EU, support consistent stock valuation for HMRC, and build in lot, batch and expiry traceability where food, healthcare or pharmaceutical rules require it.
Do you provide training for our team?
Yes, tailored to each role. Warehouse staff get hands-on time with scanning, receiving and cycle counts; buyers cover reorder points and purchase orders; finance covers reconciliation and reporting. We provide documentation and remote or on-site sessions, and can train internal champions to support the rest of the team.