B2B E-commerce Platform for Wholesale and Distribution: 2026 Cost

The verdict in three sentences

A B2B e-commerce platform is not a consumer store with a different logo: it handles customer-specific price lists, multi-user accounts and deferred payment, which is why budgets run from 40,000 to 150,000 EUR excl. tax in 2026. The real return comes from order-taking automation: a well-designed portal cuts order calls and e-mails by 40 to 60 % and frees your sales reps for high-value selling. Plan for a 4 to 8 month project, with most of the risk sitting in the ERP integration and real-time stock sync.

What sets a B2B platform apart from a B2C store

In B2B, each customer sees their catalogue and their prices. A long-standing reseller does not get the same grid as a new account, and one buyer may have a different credit ceiling than another. These business rules weigh heavily on the estimate.

The most expensive line is the last one: without a reliable ERP link, displayed prices and stock levels go stale, and the portal loses buyer trust within weeks.

2026 budget: custom build or off-the-shelf B2B

There are two paths. A packaged B2B solution (Shopify B2B, Adobe Commerce, BigCommerce B2B, or a B2B module on an e-commerce CMS) launches faster but customises within limits. A custom build matches complex pricing rules but costs and takes more.

These ranges are a 2026 order of magnitude: the number of SKUs, pricing rules and checkout customisation can double the total.

Mini case study

Marc runs an industrial-supplies wholesaler in Nantes: 12,000 SKUs, 400 reseller customers, 6 sales reps who today key in 70 % of orders by phone and e-mail. Each manual order takes about 12 minutes. Across 9,000 orders a year, that is 1,800 hours of data entry, close to one full-time equivalent.

He invests 68,000 EUR excl. tax in a packaged B2B portal with ERP integration. In year one, 55 % of orders move online: 4,950 automated orders save 990 hours, valued at 28 EUR/h loaded, i.e. 27,700 EUR in annual savings. Add a 4 % lift in average order value (self-service, more products seen) on a growing 8 M EUR online revenue, and the portal pays for itself in under two years, before even counting avoided entry errors.

FAQ

Can we keep our current ERP? Yes in the vast majority of cases. Common ERPs (Sage, Cegid, SAP Business One, Odoo, Divalto) expose APIs or connectors. Still budget 8,000 to 35,000 EUR for a reliable integration, with stock/price sync being the most sensitive point.

Can deferred payment be handled online? Yes. You combine per-customer credit terms (validated from the ERP), payment by transfer or direct debit, and optionally an insured B2B deferred-payment solution. Fees for those solutions run around 1.5 to 3 % of the financed amount in 2026.

How long before the first online revenue? An MVP focused on your top 20 % most active customers can be live in 3 to 4 months. The rest of the rollout (less frequent customers, advanced features) then spreads over 6 to 12 months.

Do customers need training? A minimum: video tutorial, quick-order guide, hand-holding for the top 30 accounts. Adoption mostly depends on the ergonomics of recurring reorder and the reliability of displayed prices.

How many SKUs can the platform handle? Modern solutions easily manage tens of thousands of SKUs. Beyond 50,000 SKUs with variants, the challenge becomes search performance and the faceting engine, which must be sized from the design stage.

Let's scope your project. Tell us your number of SKUs, customers and your ERP: we will scope a B2B portal with customer pricing and deferred payment, indicative budget 40,000 to 150,000 EUR excl. tax by scope. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.