The verdict in three sentences
A custom MES links the shop floor to the ERP: work orders, real times, scrap and traceability flow live instead of ending up on paper. In 2026, budget EUR 50,000 to 140,000 for the build and EUR 600-1,800/month for maintenance, targeting +5 to +15% OEE and usable traceability. The heart of the gain: simple shop-floor terminals operators actually adopt.
What makes an effective MES
An MES is not an ERP: it lives at machine and workstation level. The 2026 building blocks: work-order and time declaration, quality/scrap tracking, OEE calculation, downtime handling, material/lot traceability, and real-time feed to the ERP and reporting.
| Module | Custom (EUR) | Target industrial gain |
|---|---|---|
| Shop-floor terminals (WO declaration) | 12,000 - 28,000 | No more paper, real times |
| Time tracking | 8,000 - 18,000 | Reliable cost price |
| Quality + scrap | 8,000 - 20,000 | -20 to -40% scrap |
| OEE calculation | 6,000 - 16,000 | +5 to +15% OEE |
| Material/lot traceability | 8,000 - 20,000 | Targeted recall, compliance |
| ERP integration + reporting | 10,000 - 28,000 | Decisions on real data |
A core of "WO declaration + time + OEE + ERP integration" usually sits around EUR 65,000 to 100,000, delivered in 5 to 8 months.
Vendor MES or targeted custom
Vendor MES are powerful but heavy: large license, long configuration, modules billed separately. A targeted custom MES first covers the 20% of functions that deliver 80% of the gain.
| Criterion | Vendor MES | Targeted custom MES |
|---|---|---|
| Entry ticket | EUR 60,000-200,000 | EUR 50,000-140,000 |
| Recurring cost | 15-25% license/year | Maintenance EUR 600-1,800/month |
| Shop-floor fit | Heavy configuration | Fully custom |
| Operator adoption | Generic interfaces | UX built for the workstation |
| Code ownership | No | Yes |
| Timeline | 8-14 months | 5-8 months |
For an industrial SME wanting a precise scope (WO, time, OEE) without a monster system, targeted custom is often faster and better adopted.
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Mini case study
Karim, plant manager of a mechanical subcontractor in Toronto (45 operators, 6 lines), tracks OEE on Excel with a 2-day lag. He invests EUR 95,000 in a custom MES (WO declaration + time + OEE + quality + ERP), maintenance EUR 1,400/month.
Results at 12 months (estimate, 2026 order of magnitude): average OEE from 68% to 75% (+7 points) on capacity valued at ~EUR 2.4M/year of contribution margin, i.e. ~EUR 90,000 of potential additional value over the year, of which a share is actually captured. Scrap -25%: ~EUR 18,000/year of material saved. Even capturing only a third of the OEE gain (~EUR 30,000), the combined gain exceeds EUR 45,000/year, maintenance included (EUR 16,800). Build amortised in ~24 to 30 months.
FAQ
How much does a custom MES cost in 2026? Between EUR 50,000 and 140,000. A core of WO declaration + time + OEE + ERP runs around EUR 65,000 to 100,000.
What is the go-live timeline? Expect 5 to 8 months, with a first pilot line often instrumented by month 4 to validate adoption.
Will operators actually use it? This is the critical point: shop-floor terminals with 2-3 gestures max per declaration and a clear OEE display drive adoption and therefore ROI.
What impact on OEE? A well-deployed MES generally brings +5 to +15 OEE points in the first year by making micro-stops and scrap causes visible.
Can machines be connected? Yes, depending on their age: automated feed for connected machines, assisted terminal entry for older ones, priced case by case.
Let's scope your project. Tell us about your lines, ERP and priority indicators: we will define the MES scope and pilot line. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
