The verdict in three sentences
A custom supplier extranet costs between EUR 30,000 and 90,000 excluding VAT for a mid-sized manufacturer in 2026, depending on the modules you choose. It ships in 4 to 6 months and replaces email exchanges for tenders, quality documents and non-conformities. The gain is measured in procurement time: about 1.5 FTE recovered on a base of 200 to 400 active suppliers.
Modules and their price
A procurement director does not need everything on day one. Modules are priced separately and delivered in releases, which spreads the investment over two financial years.
| Module | What it replaces | 2026 budget (excl. VAT) | Timeline |
|---|---|---|---|
| Core (accounts, roles, supplier directory) | Shared Excel file, scattered contacts | EUR 12,000 to 18,000 | 6 weeks |
| Requests for quotation and tenders | Specs sent by email, manual comparison | EUR 8,000 to 20,000 | 5 weeks |
| Quality document upload | Chasing ISO 9001 certificates, tax and social security certificates, trade register extracts | EUR 5,000 to 12,000 | 4 weeks |
| Non-conformity management (8D, corrective actions) | Spreadsheets and emails with attachments | EUR 7,000 to 15,000 | 5 weeks |
| Supplier scoring (quality, lead times, price) | Manual annual review | EUR 6,000 to 14,000 | 4 weeks |
| ERP connection (orders, receipts) | Re-keying delivery discrepancies | EUR 8,000 to 18,000 | 4 to 6 weeks |
A "core + tenders + quality documents" scope sits around EUR 35,000 excluding VAT. The full version with scoring and ERP connection approaches EUR 85,000 to 90,000. Support then costs EUR 800 to 1,800 a month, EU hosting included.
Custom build or off-the-shelf procurement suite
Source-to-pay suites are powerful but sized for large groups. For a mid-sized company, the question is the cost per connected supplier and the fit with your industry-specific quality processes.
| Criterion | Off-the-shelf S2P suite | Custom extranet |
|---|---|---|
| Entry cost | EUR 20,000 to 60,000 configuration | EUR 30,000 to 90,000 development |
| Annual cost | EUR 25,000 to 80,000 in licences | EUR 10,000 to 22,000 in support |
| 5-year total (2026 order of magnitude) | EUR 145,000 to 460,000 | EUR 80,000 to 200,000 |
| Fit with 8D and PPAP processes | Partial, frequent workarounds | Full |
| Ownership of code and data | No | Yes |
| Time to go-live | 4 to 9 months | 4 to 6 months |
An off-the-shelf suite remains relevant above 1,500 suppliers or if you run complex reverse auctions. Below that, custom is often half the cost over five years.
Driving supplier adoption
An extranet is useless if suppliers keep emailing their documents. Three rules make the difference. First, an interface that needs no training: a supplier should upload a certificate in under 3 minutes. Second, automatic reminders 30 days and 7 days before a document expires. Third, a clear internal rule: from a set date, every tender goes through the platform. Companies that enforce this rule reach 85 to 95% of active suppliers connected within six months.
Mini case study
Marc, procurement director of a precision engineering company near Berlin (310 active suppliers, 6 buyers), estimates that his team spends 35% of its time chasing documents, consolidating bids and tracking non-conformities by email. Across 6 buyers, that is 2.1 FTE.
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He chooses core, tenders, quality documents and non-conformities: EUR 48,000 excluding VAT, delivered in 5 months, with support at EUR 1,100 a month. One year later, administrative time drops to 10%, so 1.5 FTE is redeployed to negotiation and sourcing. At a loaded cost of EUR 50,000 per buyer, the value released reaches EUR 75,000 a year. Payback: about 9 months, not counting the purchasing savings from better-compared bids (1 to 3% of the tendered volume).
FAQ
What is the minimum budget for a supplier extranet?
A core with directory and quality document upload starts around EUR 17,000 to 30,000 excluding VAT. This first release ships in 2 to 3 months.
Do suppliers pay a subscription?
No, in a custom extranet supplier access is free and unlimited. That is a clear advantage over platforms charging EUR 10 to 50 per supplier per month.
Can the extranet handle regulatory compliance (supply chain due diligence, CSRD)?
Yes, by adding ESG questionnaires and certificate tracking. Allow EUR 5,000 to 10,000 excluding VAT for this module.
How long does it take to onboard 300 suppliers?
With an invitation campaign and automatic reminders, 70% connect within 6 weeks. The remaining 20% follow once the platform becomes the only tendering channel.
Where is the data hosted?
In Germany or the EU, encrypted with daily backups, for EUR 100 to 400 a month.
Let's scope your project. Share your number of suppliers, your quality processes and your ERP: we price the extranet module by module, from EUR 30,000 to 90,000 excluding VAT, with a 4 to 6 month plan. 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.
