The verdict in three sentences
A B2B e-commerce portal with customer-specific pricing costs between EUR 25,000 and 70,000 excl. VAT in 2026, for a mid-sized supplier in Berlin as in Nantes, depending on the number of price lists, the depth of ERP integration and how far recurring orders are automated. The most expensive component is not the storefront but the pricing engine: 400 negotiated price lists require reliable ERP sync, otherwise sales reps end up correcting invoices by hand. For a packaging supplier with an average order of EUR 1,800, the portal usually pays back within 12 to 18 months through saved data entry time and scheduled replenishment.
Architecture: what a B2B portal must handle
The typical case is a packaging supplier for the food industry: trays, films, cartons, labels. Its 600 active customers (canneries, caterers, biscuit makers) order by email, phone or Excel file. Each account has its own prices, volume discounts, free shipping threshold and payment terms. The portal must therefore recognize the buyer at login and display their catalog, their prices and their usual items.
The essential building blocks are: a catalog with sales units (pallet, carton, unit), a pricing engine per account and per group, scheduled recurring orders (weekly or monthly), multiple users per company with an approval workflow, invoice-based payment terms, and two-way sync with the ERP (SAP Business One, Microsoft Dynamics, Sage X3 or Odoo).
| Feature | Complexity | Indicative 2026 cost (EUR excl. VAT) | Timeline |
|---|---|---|---|
| B2B catalog, sales units, technical sheets | Medium | 4,000 to 9,000 | 3 to 4 weeks |
| Customer-specific pricing engine (400 lists) | High | 6,000 to 16,000 | 4 to 6 weeks |
| Scheduled recurring orders | Medium | 3,000 to 8,000 | 2 to 3 weeks |
| Multi-user accounts and approvals | Medium | 2,500 to 6,000 | 2 weeks |
| Payment terms, credit limits, card, transfer | Medium | 2,500 to 7,000 | 2 to 3 weeks |
| Two-way ERP connector | High | 5,000 to 18,000 | 4 to 8 weeks |
| Testing, data migration, training | Low | 2,000 to 6,000 | 2 weeks |
The total therefore ranges from EUR 25,000 for a tight scope on a B2B SaaS platform to EUR 70,000 for a custom build with a full ERP connector.
Three technical options compared
The platform choice drives both the upfront cost and the annual cost. A SaaS solution limits development; a custom approach removes license fees but requires closer maintenance.
| Option | Upfront budget (EUR excl. VAT) | Annual recurring cost | Main limitation |
|---|---|---|---|
| Shopify Plus B2B + apps | 25,000 to 40,000 | EUR 28,000 to 35,000 (license from USD 2,300/month) | Complex price lists hard to model |
| Sana Commerce or ERP-integrated B2B solution | 35,000 to 60,000 | EUR 15,000 to 30,000 | Vendor lock-in |
| Custom (Next.js + API + PostgreSQL) | 45,000 to 70,000 | EUR 6,000 to 12,000 (hosting, maintenance) | Longer timeline, 4 to 5 months |
| B2B module on PrestaShop or WooCommerce | 15,000 to 30,000 | EUR 4,000 to 8,000 | Performance beyond 300 lists |
| Native ERP e-commerce extension | 10,000 to 25,000 | Varies with license | Limited buyer experience |
With 400 price lists and nested discount rules, entry-level modules quickly hit their limits: load times, rounding errors, outdated prices. That is often what pushes buyers toward an integrated or custom solution.
Payment terms and recurring orders: watch points
In European B2B, most customers pay at 30 or 45 days, and the EU Late Payment Directive generally caps business-to-business terms at 60 days unless expressly agreed otherwise (France applies a strict 60-day cap under the LME law). The portal must display the approved credit limit, block an order that exceeds it, and offer card or bank transfer for new accounts. Recurring orders need reminder logic: a notification 48 h before dispatch, the ability to change quantities, and stock-out handling. A poorly configured replenishment can trigger costly disputes, so plan a monitoring dashboard for customer service.
Mini case study
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Claire, sales director at a packaging supplier, manages 400 price lists and 600 customers. Her team of 3 order administrators enters about 1,100 orders a month, at 9 minutes per order, or 165 hours monthly. With a portal absorbing 60% of orders, a third of them recurring, the saving reaches about 99 hours a month, close to 1,190 hours a year. Valued at a loaded hourly cost of EUR 35, that is EUR 41,650 a year. For a EUR 52,000 project and EUR 8,000 in annual costs, payback comes around month 18, not counting the higher purchase frequency driven by automatic replenishment.
FAQ
How much does B2B e-commerce with customer-specific pricing cost in 2026?
Budget EUR 25,000 to 70,000 excl. VAT depending on the number of price lists and ERP integration. A minimal SaaS scope starts around EUR 25,000; a full custom build approaches EUR 70,000.
What is the go-live timeline?
Between 3 and 5 months. The ERP connector and the migration of 400 price lists alone account for 6 to 10 weeks of work.
Can we offer net 30 payment online?
Yes, through a customer credit limit managed in the portal or a B2B deferred payment solution charging 1.5 to 4% per transaction. Terms beyond 60 days are generally restricted in the EU.
Are recurring orders really used?
In food packaging, 25 to 40% of orders are repeat orders. Scheduling them reduces missed replenishments and smooths production.
Do we need to change ERP to launch the portal?
Rarely. An API connector or scheduled file exchange is enough in most cases, for EUR 5,000 to 18,000 excl. VAT.
Let's scope your project. Send us your number of price lists, your ERP and your order volumes: we will price the scope, the indicative budget and the rollout plan. 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.
