The verdict in three sentences
A supplier extranet to manage 200 partners costs between 50,000 and 135,000 EUR excl. VAT in Berlin in 2026, over a 4 to 7 month timeline. Order management, document exchange and EDI integration with your ERP concentrate most of the technical and budget complexity. Against an ERP supplier module (often limited and licence-heavy), custom wins as soon as your procurement processes leave the standard mould.
What a supplier extranet costs in 2026
The budget varies with the number of connected suppliers, document volume and level of EDI automation. Here are 2026 orders of magnitude for Berlin manufacturing.
| Scope | Features included | Price EUR excl. VAT | Timeline |
|---|---|---|---|
| Document extranet | Orders, documents, notifications | 50,000 - 66,000 | 4 months |
| Operational extranet | + delivery tracking, receipts, roles | 66,000 - 95,000 | 5-6 months |
| Integrated extranet | + EDI, ERP connection, stock alerts | 95,000 - 135,000 | 6-7 months |
| Full procurement platform | + tenders, supplier scoring, API | 135,000 - 190,000 | 7-10 months |
Recurring costs to fold into the overall budget.
| Recurring item | 2026 range |
|---|---|
| Maintenance (support) | 12 to 18 % of project cost / year |
| Hosting + monitoring | 220 to 660 EUR / month |
| EDI flows (per partner) | 15 to 40 EUR / month |
| Annual enhancements | 8,800 to 22,000 EUR |
Custom or ERP supplier module?
ERPs offer a supplier portal, but often rigid and licence-billed. Custom fits your processes.
| Criterion | Custom extranet | ERP supplier module |
|---|---|---|
| Upfront cost | 50,000 - 135,000 EUR | 22,000 - 55,000 EUR (setup) |
| Supplier licences | None | 8 - 25 EUR / supplier / month |
| Process fit | Total | Limited to configuration |
| 3-year cost, 200 suppliers | ~155,000 EUR | ~190,000 EUR |
| Bespoke EDI | Yes | Vendor dependent |
| Scalability | Unlimited | Vendor dependent |
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With 200 suppliers, ERP licences at 15 EUR/month total 36,000 EUR/year, which tips the maths toward custom.
Mini case study
Stefan, procurement director at a mid-sized manufacturer in Berlin (mechanical parts, 200 active suppliers) receives 1,400 documents a month by email and phone. An integrated extranet at 100,000 EUR excl. VAT, maintenance at 15 % (15,000 EUR/year), automates orders and receipts. His team of 4 buyers recovers 12 hours a week, valued at 38 EUR: 12 h x 38 EUR x 46 weeks = 20,976 EUR/year, plus an order-error reduction estimated at 27,000 EUR/year. Payback in about 26 months.
FAQ
How much is a basic supplier extranet? A document extranet (orders, documents, notifications) starts at 50,000 EUR excl. VAT over 4 months. It is enough if you need neither EDI nor deep ERP integration.
Is EDI integration mandatory? No, but it automates standardised exchanges with large suppliers. Budget 10,000 to 32,000 EUR for integration, plus 15 to 40 EUR per partner per month for flows.
How long to connect 200 suppliers? Development takes 4 to 7 months; the phased onboarding of 200 suppliers then spans 2 to 4 months, in waves of 30 to 50.
What maintenance should I plan? Maintenance for an integrated extranet runs 12 to 18 % of the project cost per year, i.e. 12,000 to 24,300 EUR for a 100,000 EUR project, EDI and monitoring included.
Can the extranet connect to our existing ERP? Yes, via API or EDI. Complexity depends on the ERP's age: budget 8,800 to 27,000 EUR for robust integration with order and stock synchronisation.
Let's scope your project. Tell us your supplier count, your ERP and your EDI needs for a tailored quote. 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.
