The verdict in three sentences
A custom B2B extranet for your resellers (negotiated pricing, orders, documents) costs 25,000 to 70,000 EUR in 2026 depending on scope and integrations. The real gain is not the site itself but sales productivity: resellers order autonomously 24/7, and sales reps focus on value-added selling. Start with an MVP centred on priced catalogue and order entry, then add stock and billing.
The price of a reseller extranet
Custom development in major European hubs sits in the upper-mid French range, with agency day rates of 500 to 750 EUR. Scope drives everything: an extranet showing per-client pricing and managing an order workflow is far more complex than a plain catalogue.
| Scope | Key features | 2026 price (EUR) | Timeline |
|---|---|---|---|
| Priced-catalogue MVP | Auth, per-client pricing, order | 25,000 – 38,000 | 8 – 12 wks |
| Standard extranet | + roles, history, documents | 38,000 – 52,000 | 3 – 4 mo |
| Full platform | + real-time stock, billing | 52,000 – 70,000 | 5 – 7 mo |
| Advanced options | Multi-warehouse, API, mobile app | +8,000 – 20,000 | per module |
| Annual maintenance | Hosting, support, evolutions | 5,000 – 11,000 /yr | recurring |
Role management (buyer, approver, reseller admin) and per-client pricing grids are the two features distinguishing a true B2B extranet from a classic online shop.
Sales productivity gains
An extranet turns manual order entry into self-service. Every order the reseller enters is one the rep no longer re-keys, and one fewer source of error.
| Metric | Before extranet | After extranet | Effect |
|---|---|---|---|
| Manually entered orders | 100 % | 25 % | -75 % |
| Entry time / order | 12 min | 2 min | -10 min |
| Order errors | 6 % | 1.5 % | -75 % |
| Average reseller basket | baseline | +10 to 20 % | up-sell |
| Order availability | office hours | 24/7 | autonomy |
Across 1,500 orders per month, moving from 12 to 2 minutes on 75 % of orders frees about 187 hours/month, more than one full-time role reallocated to prospecting.
Mini case study
Sophie, sales director of an industrial-supplies distributor in Lyon, runs a network of 220 resellers. Her 4 sales assistants spend 60 % of their time re-keying orders received by email and fax. She invests 46,000 EUR in a standard extranet with per-client pricing and online ordering. Within four months, 70 % of orders shift to self-service. Entry time drops from 180 to 45 hours/month, errors fall 70 %, and average basket rises 14 % thanks to product recommendations. The extranet pays for itself in 14 months.
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FAQ
What is the difference between a B2B extranet and an e-commerce shop?
An extranet manages per-client negotiated pricing, approval workflows, multiple roles and often stock/ERP integration. An e-commerce shop shows identical public prices for everyone. B2B is structurally more complex, hence a 25,000 EUR minimum budget.
Can we show different prices per reseller?
Yes, that is the core of a B2B extranet. Pricing grids are imported from the ERP or a file, with discounts by family, volume or contract. It is a complexity item that justifies part of the budget.
Must stock be connected in real time?
Not from the MVP. You can display stock refreshed once or twice a day, which is often enough. Real-time sync via ERP API is a later module, at 8,000 to 15,000 EUR depending on the system.
How long to an operational extranet?
A priced-catalogue MVP ships in 8 to 12 weeks. A full platform with stock and billing takes 5 to 7 months. Allow time for reseller onboarding, often underestimated.
Does an extranet grow revenue?
Yes, indirectly: 24/7 availability, product recommendations and easier reordering lift average basket by 10 to 20 % in many cases. The surest gain remains sales productivity.
Let's scope your project. Tell us the number of resellers, your ERP and an indicative budget, and we'll scope a fundable priced-catalogue MVP. 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.
