The verdict in three sentences
A secure partner extranet costs between 20,000 and 50,000 EUR excl. tax in 2026, depending on role granularity and ERP integration depth. The line item that tips the budget is not the interface, it is permission management and per-segment reseller pricing sync. Add a security audit (~3,000 EUR) before go-live: it is non-negotiable when confidential pricing circulates.
What an extranet costs in 2026
An extranet is not a brochure site with a login. It is a business application where each reseller sees their own pricing, history and documents, and nothing more. Here is the 2026 order of magnitude for the European market.
| Extranet level | Typical scope | 2026 range (EUR excl. tax) | Timeline |
|---|---|---|---|
| Document extranet | Login, docs, static pricing, simple roles | 20,000 - 28,000 | 3 months |
| Ordering extranet | + order placement, B2B cart, stock | 28,000 - 38,000 | 4 months |
| Integrated extranet | + real-time ERP sync, dynamic pricing | 38,000 - 50,000 | 5-6 months |
| Security options | Audit, penetration tests, SSO | 3,000 - 9,000 | one-off |
| Maintenance/yr | Hosting, fixes, support | 4,000 - 9,000 /yr | recurring |
ERP synchronization (SAP, Sage, Odoo, Dynamics) is the main cost driver: budget 6,000 to 15,000 EUR depending on the maturity of the ERP-side API.
The real cost driver: roles and permissions
A poorly designed extranet exposes sensitive data. The key is a clear role matrix where each function is priced separately. The table below breaks down cost by access level and function.
| Role / function | Typical rights | Complexity | Indicative cost (EUR excl. tax) |
|---|---|---|---|
| Standard reseller | See own pricing, order, download docs | Low | 3,000 - 5,000 |
| Key-account reseller | + negotiated pricing, credit, multi-user | Medium | 4,000 - 7,000 |
| Internal sales rep | See all resellers in their territory | Medium | 3,500 - 6,000 |
| Administrator | Manage roles, pricing, catalog, exports | High | 5,000 - 9,000 |
| Audit / read-only | View logs and reporting | Low | 1,500 - 3,000 |
| Encryption + logging | Data at rest, GDPR traceability | Cross-cutting | 3,000 - 6,000 |
A well-designed role matrix up front prevents cost overruns mid-project: it is the most profitable deliverable of the scoping phase.
Mini case study
Sarah is sales director of an electrical-equipment distributor in Lyon, with 220 active resellers. Today, the order-desk team processes roughly 60 orders/day by e-mail and phone, with a 4% data-entry error rate. She invests 34,000 EUR excl. tax in an ordering extranet integrated with the Sage ERP. Result: 70% of orders go self-service, the order desk saves the equivalent of 1.5 FTE (about 54,000 EUR loaded/year), and entry errors fall below 1%. With 8,000 EUR of annual maintenance, ROI is reached in about 10 months, after which the extranet generates over 45,000 EUR of net gain per year.
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FAQ
Is an extranet different from a classic B2B site?
Yes: an extranet is restricted to identified partners, with confidential per-role pricing and documents. The security and permissions layer represents 30 to 40% of the budget, versus almost nothing on a public site.
Is ERP integration mandatory?
Not at launch, but it is the biggest value source. ERP sync (6,000 to 15,000 EUR) eliminates double entry and guarantees accurate real-time stock and pricing.
How do you secure confidential pricing?
Encryption of data at rest, MFA authentication, strict per-role isolation and access logging. A 3,000 EUR security audit validates it all before opening to partners.
How long to deploy?
From 3 months for a document extranet to 6 months for an ERP-integrated version. The limiting factor is often the quality of the existing information system's APIs.
Can we add new roles later?
Yes, if the role matrix is designed to be extensible from the start. Adding a role later then costs 1,500 to 4,000 EUR depending on the rights.
Let's scope your project. Share your reseller count, existing ERP and target budget (20 to 50k EUR): we will price the role matrix and integration first. 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.
