The verdict in three sentences
A B2B e-commerce platform is not a consumer store with a different logo: it handles per-customer pricing, credit accounts, recurring orders and real-time ERP integration. In 2026, expect 40,000 to 120,000 EUR excl. VAT for serious custom work, versus 15,000-35,000 EUR for a constrained licensed solution. The real trade-off is not the sticker price but the 3-year total cost once commissions, apps and limits are factored in.
What drives the price of a B2B platform
B2B charges for invisible complexity: each reseller sees its own catalog, negotiated prices, credit balance and history. Here are the 2026 ranges per module.
| Module | Complexity | 2026 range (EUR excl. VAT) |
|---|---|---|
| Catalog core + customer accounts | Medium | 12,000 - 25,000 |
| Per-customer pricing / negotiated grids | High | 8,000 - 18,000 |
| Recurring orders + reordering | Medium | 6,000 - 14,000 |
| ERP integration (SAP, Sage, Cegid) | Very high | 10,000 - 30,000 |
| Deferred payment + credit accounts | High | 5,000 - 12,000 |
| Sales rep / multi-user area | Medium | 4,000 - 10,000 |
A full project stacks 4 to 6 of these blocks, which is why the top range sits around 120,000 EUR excl. VAT.
Licensed vs custom: the real comparison
| Criterion | Licensed solution | Custom |
|---|---|---|
| Upfront cost | 15,000 - 35,000 EUR | 40,000 - 120,000 EUR |
| Annual subscription | 6,000 - 30,000 EUR | Hosting 1,500 - 5,000 EUR |
| Native B2B logic | Partial (apps) | Complete |
| Code ownership | No | Yes |
| Time to launch | 2 - 4 months | 4 - 8 months |
| 3-year total cost (indicative) | 40,000 - 120,000 EUR | 55,000 - 135,000 EUR |
Over 3 years the two worlds converge: custom avoids commissions and functional dead ends, licensed launches faster. Order-of-magnitude estimate for 2026.
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Mini case study
Marc, sales director of an industrial supplies distributor in Nantes, manages 180 resellers with 6 reps who re-key orders received by email. A B2B platform at 68,000 EUR excl. VAT automates order entry and frees the equivalent of 1.5 FTE of data entry, roughly 54,000 EUR/year. Break-even is reached in 15 months, before counting the higher average basket from cross-selling.
FAQ
How much does a B2B platform really cost in 2026? For a serious scope with per-customer pricing and ERP, expect 40,000 to 120,000 EUR excl. VAT. Below 30,000 EUR, you are on a constrained licensed solution.
Is ERP integration mandatory? No, but without it you re-key stock and orders by hand. Integration is 10,000 to 30,000 EUR but often removes 1 FTE of data entry.
What timeline should I plan? Between 4 and 8 months for custom, versus 2 to 4 months for a license. The limiting factor is almost always the quality of your product data.
Can we start small then extend? Yes: a core at 45,000 EUR with catalog and customer accounts, then negotiated pricing and ERP in phase 2. This is the most common pattern in 2026.
What annual maintenance budget? Expect 12 to 20 % of the initial cost per year, i.e. 6,000 to 24,000 EUR, hosting and evolutions included.
Let's scope your project. Tell us your catalog, your number of resellers and your ERP: we will price a B2B core and its phases. 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.