The verdict in three sentences
A custom supplier extranet for a food manufacturer in Amsterdam costs 45,000 to 85,000 EUR in 2026, delivered in 12 to 16 weeks. The ERP connector (Sage X3, Divalto) adds about 12,000 EUR and becomes the crux for traceability and expiry dates. A packaged SRM portal costs 6,000 to 14,000 EUR/year, but hits limits fast on food-specific rules (batches, best-before dates, sanitary approvals).
The essential specification
Before pricing, scope the modules. Here are the functions a food SME with 120 suppliers expects, and their budget weight.
| Module | Function | 2026 cost (EUR) | Priority |
|---|---|---|---|
| Order portal | Placement, tracking, history | 9,000 - 15,000 | High |
| Delivery notes | Upload, validation, discrepancies | 7,000 - 12,000 | High |
| Expiry dates + batches | Date entry, alerts, blocking | 8,000 - 14,000 | High |
| Traceability | Batch trace, product recall | 9,000 - 16,000 | High |
| Quality documents | Approvals, certificates, sheets | 5,000 - 9,000 | Medium |
| ERP connector | Sage X3 / Divalto | 10,000 - 14,000 | High |
| QA + rollout | Testing, training, prod | 4,000 - 7,000 | High |
Indicative total: 45,000 to 85,000 EUR depending on traceability depth and number of connectors.
Build vs Buy: 3-year TCO
A packaged SRM portal bills as a subscription; custom has a higher entry cost but no per-supplier fee. Comparison for 120 suppliers.
| Scenario | Year 1 | Year 2 | Year 3 | 3-year total |
|---|---|---|---|---|
| Custom (build 65,000 + maint. 10,000/yr) | 75,000 | 10,000 | 10,000 | 95,000 |
| Packaged SRM at 8,000 EUR/yr | 8,000 | 8,000 | 8,000 | 24,000 |
| Packaged SRM 14,000 EUR/yr + setup 6,000 | 20,000 | 14,000 | 14,000 | 48,000 |
| SRM + food modules on quote (est.) | 24,000 | 18,000 | 18,000 | 60,000 |
Reading: over 3 years, SRM stays cheaper to buy. Custom is justified when food rules (expiry/batches/recalls) are too specific for a standard tool, or when you want an asset integrated with your ERP without vendor lock-in.
Mini case study
Yann, procurement director of an Amsterdam cannery (120 suppliers, 3 sites), handled delivery notes and discrepancies by email: 14 hours/week of re-keying and 1.8 % batch errors. With a custom extranet at 68,000 EUR (Sage X3 connector included, maintenance 10,000 EUR/year), re-keying dropped to 3 hours/week and batch errors to 0.4 %. Gain: ~11 hours/week = ~500 hours/year at 32 EUR = 16,000 EUR/year, plus reduced recall risk. Build payback in ~4 years on time alone.
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FAQ
What is a realistic timeline for this extranet?
Expect 12 to 16 weeks. A first release (orders + delivery notes) can ship in 7 to 9 weeks for 28,000-38,000 EUR, with fine traceability in release 2.
Is the ERP connector essential?
For food, yes: without an ERP link, traceability and expiry dates stay manual. The Sage X3/Divalto connector costs 10,000 to 14,000 EUR and eliminates double entry.
Won't a packaged SRM portal do?
It covers orders and documents well, but food rules (batches, expiry, approvals, recalls) often need custom work. Expect on-quote modules that inflate the TCO.
How do we onboard 120 suppliers?
In waves, with guided onboarding and materials. Plan 3,000 to 6,000 EUR of training and a month of parallel-run to secure adoption.
What maintenance budget?
Maintenance runs 12 to 18 % of the build per year, i.e. 8,000 to 15,000 EUR, for regulatory changes and new connectors.
Let's scope your project. Send us your priority modules, your ERP and your supplier count: we scope a fast release 1 then full traceability, with a per-phase budget. 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.
