The verdict in three sentences
A custom B2B e-commerce platform ranges in 2026 from 50,000 to 160,000 EUR, driven mostly by contract pricing, hierarchical customer accounts and real-time ERP synchronization. A wholesaler selling to professionals has nothing in common with a consumer store: quotas, credit limits, order approval and quick order-by-SKU change everything. The smart move is to price it module by module rather than buy a poorly sized flat license.
What makes up the price in 2026
B2B is paid on business logic, not page count. Here are the main line items and their 2026 order of magnitude.
| B2B module | What it does | 2026 cost (EUR) |
|---|---|---|
| Customer accounts & roles | Multi-user per company, buyers/approvers | 7,000 - 16,000 |
| Negotiated price lists | Contract, volume and per-customer pricing | 10,000 - 24,000 |
| Quick order | Order by SKU, CSV import, saved lists | 5,000 - 12,000 |
| Quotas & credit limits | Caps, blocking, approval workflow | 6,000 - 14,000 |
| ERP synchronization | Two-way stock, price and order sync | 12,000 - 34,000 |
| Catalog & search | Datasheets, filters, variants | 6,000 - 18,000 |
| Payment & invoicing | Bank transfer, terms, credit notes, PDF | 5,000 - 14,000 |
| Punchout (procurement) | cXML/OCI integration with buyer systems | 8,000 - 20,000 |
A B2B "Starter" build assembling the essentials lands around 50,000-65,000 EUR; a full-ERP, multi-contract project often exceeds 110,000 EUR.
Ranges by company profile
| Profile | Typical scope | 2026 budget (EUR) | Timeline |
|---|---|---|---|
| Small wholesaler | < 2,000 SKUs, 1 price list | 50,000 - 70,000 | 3-4 months |
| Regional distributor | Hierarchical accounts, ERP sync | 75,000 - 110,000 | 4-6 months |
| Multi-brand manufacturer | Punchout, quotas, multi-currency | 110,000 - 160,000 | 6-9 months |
| International group | Multi-site, multi-language, SLA | 160,000+ | 9-12 months |
Recurring costs (managed hosting, maintenance, enhancements) typically run 15-22% of the build per year.
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Mini case study
Claire, CFO of an industrial-supplies wholesaler in Lyon, processes 320 B2B orders a week, 60% still arriving by email and fax. Each manual order ties up 9 minutes of an inside sales rep, about 46 hours/week of re-keying. Moving 70% of orders to self-service on a custom platform at 80,000 EUR saves nearly 32 hours/week, roughly 45,000 EUR/year in labor. Payback lands around 21 months, before even counting fewer entry errors.
FAQ
Why does a B2B platform cost more than a brochure site? Because the value is in the business logic: negotiated pricing, credit limits, quotas and ERP sync often make up 60% of the budget, far beyond design.
Can we start small and expand? Yes. A "Starter" foundation at 50,000-65,000 EUR covers accounts and quick order; ERP and multi-contract pricing are added in phase 2 without a rebuild.
How much is ERP integration alone? Expect 12,000 to 34,000 EUR depending on the ERP (SAP, Sage, Odoo) and the number of synced flows (stock, price, orders, invoices).
What recurring costs should we plan? On average 15-22% of the build per year: hosting, monitoring, fixes and minor enhancements.
What is a realistic 2026 timeline? From 3-4 months for a simple foundation to 9-12 months for a multi-site group with punchout and multi-currency.
Let's scope your project. Share your catalog, price lists and ERP, and we will define scope, an indicative budget between 50,000 and 160,000 EUR, and a timeline. 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.
