The verdict in three sentences
A supplier extranet orchestrates purchase orders, acknowledgments, invoices and delivery KPIs, but its cost hinges mostly on connectors and access governance. In 2026 a full portal runs 40,000-78,000 EUR; the core alone starts far lower. The two line items that inflate the quote are the ERP/EDI connector and the multi-level approval workflow.
Pricing by building block
A procurement/supply-chain team stacks modules by maturity. Here are 2026 ballparks for a panel of 30 to 200 suppliers.
| Block | Cost (EUR) | Timeline |
|---|---|---|
| Core (auth, supplier accounts, roles) | 12,000 - 22,000 | 4-5 wks |
| Purchase orders + acks + invoices | 9,000 - 18,000 | 4-6 wks |
| Multi-level approval workflow | 8,000 - 15,000 | 3-5 wks |
| ERP / light EDI connector | 10,000 - 26,000 | 4-7 wks |
| Delivery / OTIF KPI dashboard | 5,000 - 11,000 | 2-4 wks |
| Full portal | 40,000 - 78,000 | 12-18 wks |
The 2026 day rate sits between 500 and 650 EUR. Light EDI (structured order/invoice exchange) is cheaper than full standardized EDI but covers most SME flows.
The 3-year cost of ownership
The build is only the start. Hosting with monitoring and maintenance weigh heavily on a supply-chain-critical tool.
| Line item | 2026 ballpark |
|---|---|
| Hosting + monitoring | 180 - 400 EUR/month |
| Maintenance (20-22%/yr) | 8,000 - 17,000 EUR/yr |
| EDI flow supervision | 200 - 600 EUR/month |
| Evolutions per batch | 5,000 - 12,000 EUR |
| Supplier onboarding | 100 - 300 EUR/supplier |
On a 60,000 EUR portal, 22% maintenance adds ~13,000 EUR/year. Reinforced monitoring is justified because a stalled EDI flow can halt deliveries.
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Mini case study
Sarah, head of procurement in New York (food processing, 120 suppliers) wants reliable acknowledgments and a better OTIF rate. She scopes a 58,000 EUR portal (core + PO/acks + workflow + KPIs), EDI connector in batch 2 at 18,000 EUR. Today, 14% of orders suffer a keying error or missing ack, costing ~22,000 EUR/year in disputes and chasing. The portal aims to cut that below 4%, i.e. ~16,000 EUR/year saved, plus OTIF visibility that didn't exist. Estimated batch-1 ROI: 24 months.
FAQ
Full EDI or light EDI? For an SME, light EDI (structured exchange via API/files) covers the essentials at 10,000-26,000 EUR. Full standardized EDI is justified only when a large customer requires it.
Is the approval workflow really useful? Yes, as soon as several levels approve orders or invoices. It prevents off-budget commitments and traces approvals: 8,000-15,000 EUR well spent.
Timeline for a full portal? 12 to 18 weeks depending on connectors. A core + PO/acks can ship in 8-10 weeks and already deliver value.
How do we secure supplier access? Role-based accounts, per-supplier data partitioning, logging and strong authentication. Access governance is a project in its own right.
How much is supplier onboarding? Expect 100 to 300 EUR/supplier (setup, training, initial support), worth budgeting for a large panel.
Let's scope your project. Tell us your supplier count, ERP/EDI flows and approval levels, and we'll break the estimate into blocks. 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.
