The verdict in three sentences
A B2B e-commerce portal with customer-specific pricing for a wholesaler runs between 30,000 and 70,000 EUR (net) in 2026, depending on catalogue depth and ERP integration. The real challenge is not the storefront but the negotiated price lists, quick ordering and stock/price sync with your ERP. Budget 4 to 6 months for a solid rollout, with ROI driven by fewer manually processed orders.
What the budget covers
A wholesaler does not sell like a consumer site: each customer has their own prices, payment terms and history. The budget splits between the technical base, the pricing logic and the integration.
| Item | 2026 range (EUR net) | Note |
|---|---|---|
| Discovery + B2B UX | 4,000 - 8,000 | Pro buyer journey, multi-user accounts |
| Catalogue + product pages | 5,000 - 12,000 | Variants, packaging, sales units |
| Customer price lists | 6,000 - 14,000 | Per-account pricing, volume discounts, tiers |
| Quick order + reordering | 4,000 - 9,000 | CSV import, customer SKUs, saved lists |
| ERP integration | 8,000 - 20,000 | Stock, prices, customers, orders both ways |
| UAT + go-live | 3,000 - 7,000 | Testing, training, data migration |
The item that most often overruns is ERP integration: Sage, SAP Business One, Cegid or Microsoft Dynamics do not all expose modern APIs, and a custom connector quickly inflates the bill.
Custom vs SaaS B2B platforms
Many wholesalers hesitate between a custom build and a packaged SaaS platform. Here are the 2026 orders of magnitude.
| Criterion | Custom | Shopify B2B (Plus) | BigCommerce B2B |
|---|---|---|---|
| Setup cost | 30,000 - 70,000 EUR net | 12,000 - 30,000 EUR net | 15,000 - 35,000 EUR net |
| Annual subscription | Hosting 1,500 - 6,000 | ~28,000 EUR/yr (Plus) | ~18,000 - 30,000 EUR/yr |
| Fine-grained price lists | Unlimited | Good, tier limits | Good via Price Lists |
| Deep ERP integration | Full | Via apps/middleware | Via apps/middleware |
| Functional freedom | Full | Framed | Framed |
| Timeline | 4 - 6 months | 2 - 4 months | 2 - 4 months |
Simple rule: under 500 SKUs with standard pricing rules, a SaaS platform is often enough. Beyond that, with complex packaging and bespoke business logic, custom wins over 3 years.
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Mini case study
Mark, sales director of an industrial supplies wholesaler in London, processes 1,400 orders per month, 60% of them by phone and email. Each manual order takes an inside sales rep an average of 9 minutes. That is 840 manual orders x 9 min = 126 hours/month, roughly 6,300 EUR of monthly cost at a 50 EUR loaded hourly rate.
With a 48,000 EUR (net) portal shifting 70% of those orders to customer self-service, he saves ~4,400 EUR/month, or 52,800 EUR/year. The portal pays for itself in about 11 months, before counting the higher average basket from displayed cross-sell.
FAQ
Can we show different prices per customer? Yes, that is the heart of a B2B portal: each account sees its negotiated list, volume discounts and tiers. Budget 6,000 to 14,000 EUR (net) for rich pricing logic.
Is ERP integration mandatory? Not at launch, but strongly recommended: without stock/price sync you recreate double entry. Integration is 8,000 to 20,000 EUR (net) depending on the ERP.
How long to go live? Budget 4 to 6 months for a full custom project. A B2B SaaS base can launch in 2 to 4 months if your pricing rules stay standard.
How do recurring customers reorder quickly? Via CSV import, the customer's internal SKUs and saved reorder lists. These features sharply cut buyer-side entry time.
Is online payment essential in B2B? Not always: many wholesalers keep payment on terms and the customer account. Card payment is added for new or small accounts.
Let's scope your project. B2B portal with price lists and ERP integration, indicative budget 30,000 - 70,000 EUR net, 4-6 month 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.
