Your Coventry stores feed a JIT line and the stock count is a day behind the truth
Inventory in a Coventry plant feeding a just-in-time line is unforgiving, and a stock count that's a day behind, or living in Fishbowl, Cin7, or a spreadsheet, is how you stop a customer's production over a missing tray of parts. Custom inventory management software costs £40,000 to £110,000 over 3 to 6 months and pays back the first time it prevents a line-stop or an over-order of volatile EV components.
Fishbowl, Cin7, and spreadsheets all assume inventory changes slowly enough to count periodically. A Coventry supplier feeding a JIT automotive line consumes and replenishes by the hour, against OEM call-offs that change daily, so a stock figure that updates overnight is fiction by mid-morning. When the real count and the system count diverge, you either hold too much working capital in expensive EV components or you run short and risk stopping your customer's line.
The generic tools also don't speak your customers' language. They don't ingest a DELJIT call-off, they don't reserve stock against a specific OEM schedule, and they don't trace a batch through to the dispatch that fed a particular VIN range. So the most demanding part of automotive inventory, matching live stock to live call-offs with full traceability, happens in a spreadsheet beside the tool you paid for.
The case for owning your inventory management
Custom inventory software tracks stock in real time against live OEM call-offs, reserves the right parts for the right schedule, and carries batch traceability through to dispatch. You see true available-to-promise by the minute, not by the morning, so you hold the minimum working capital that still protects your customer's line, with the audit trail your OEM expects.
What your build should include
Coventry inventory management: the full scope
Everything an inventory management build here can cover: barcode scanning, multi-location inventory, inventory tracking, Fishbowl alternative, Cin7 alternative, real-time inventory and purchase order management.
Budgeting a inventory management build in Coventry
| Project scope | Typical cost | Timeline |
|---|---|---|
| Real-time inventory for one site | £40k to £65k | 3 to 4 months |
| Add OEM call-off ingestion and reservations | £65k to £90k | 4 to 5 months |
| Full traceability with ERP (Enterprise Resource Planning) and EDI integration | £90k to £110k | 5 to 6 months |
Delivery, week by week
Exactly what you get
Inventory software that keeps pace with a JIT line: real-time stock from scanned moves, live OEM call-off ingestion that reserves the right parts for the right schedule, and batch traceability that follows a lot through to the dispatch and VIN range it fed. You get true available-to-promise by the minute and shortage alerts before they become line-stops, with the audit trail your OEM expects. It works hand-in-glove with your ERP, your warehouse management system, and your supply chain software so the whole flow shares one stock truth.
How to choose a developer in Coventry
Ask how they keep stock accurate at the pace of a JIT line and how they'd ingest a daily OEM call-off into reservations, because that combination is where Fishbowl and spreadsheets fail. Push on batch traceability through to dispatch. A developer who has worked with Coventry's automotive supply chain will understand that protecting your customer's line without drowning in working capital is the whole brief, and will design real-time accuracy and call-off-driven reservations to deliver it.
- Real-time stock that matches the pace of a JIT line, not an overnight count
- Live OEM call-off ingestion so reservations follow the actual schedule
- Right-sized working capital on expensive EV components, neither short nor bloated
- Batch traceability through to dispatch and VIN range for recall and audit
- True available-to-promise visible to planning and sales in real time
- Real-time accuracy depends on disciplined scanning at every stock move
- More costly than a Fishbowl or Cin7 subscription
- Tight ERP and EDI integration adds dependencies to maintain
- Overkill for slow-moving, non-JIT inventory
- !No JIT experience; ask how they keep stock accurate at line pace
- !No call-off ingestion; ask how a DELJIT drives reservations
- !They treat batches loosely; ask how traceability reaches a VIN range
- !No cycle-count plan; ask how accuracy stays high without a full stocktake
- !No ERP/EDI integration story; ask how stock and schedules stay in sync
Teams investing in inventory management in Coventry usually scope it next to accounting, project management, lms, since these systems share data and budgets.
Rohan advises mid-market and enterprise teams on ERP, CRM and custom software, and has led delivery on dozens of business-software builds.
Writes for Digital Heroes, shipping business software for 2,000+ brands across 55+ countries since 2017.
Frequently asked questions
Why isn't Fishbowl or Cin7 enough for a JIT supplier?
Because they assume inventory changes slowly enough to count periodically, while a Coventry JIT line consumes and replenishes by the hour against call-offs that change daily. An overnight stock figure is fiction by mid-morning, and the tools can't ingest a DELJIT call-off to drive reservations.
How does real-time stock actually work?
Every goods-in, WIP, and dispatch move is scanned, so the stock figure reflects reality continuously rather than after a nightly batch. That accuracy is what lets you hold the minimum working capital that still protects your customer's line.
Can it trace a batch to a specific VIN range?
Yes. Batch and lot traceability follows each lot through production to the dispatch note and the VIN range it fed, which is exactly what a recall investigation or an OEM audit demands and what spreadsheet-based stock can't provide.
What does custom inventory software cost?
Real-time inventory for one site runs £40,000 to £65,000. Adding OEM call-off ingestion and reservations takes it to £90,000, and full traceability with ERP and EDI integration reaches £110,000, over 3 to 6 months.
Does it replace our ERP?
No, it integrates with it. The ERP holds purchasing, costing, and finance, while the inventory system handles real-time stock, call-off reservations, and traceability, feeding accurate figures back to the ERP rather than duplicating it.