The verdict in three sentences
For a Berlin wholesaler with 4,000 SKUs and 1,200 trade customers, a serious B2B ecommerce platform costs, as a 2026 market estimate, between 40,000 and 120,000 EUR excl. VAT, depending on the complexity of customer-specific price lists and credit management. The real challenge is not the storefront but the accuracy of negotiated prices, 30-day payment terms and discounts by product family. Well scoped, the platform moves 20 to 35% of orders online in the first year and frees your sales reps for prospecting.
What a wholesale B2B platform must do
A B2C site shows one public price. A wholesale portal shows each logged-in customer their own price: base list, group discount, negotiated net prices on specific SKUs, free shipping threshold and minimum pack sizes. If any of these is wrong, the customer calls their rep and trust in the tool collapses.
| B2B feature | Complexity | Budget impact (2026 market estimate) |
|---|---|---|
| 4,000-SKU catalogue with technical sheets | Medium | 5,000 to 12,000 EUR |
| Price lists per customer and per group | High | 10,000 to 28,000 EUR |
| Customer credit limit and blocking above the cap | High | 6,000 to 18,000 EUR |
| 30-day terms, card and SEPA transfer | Medium | 4,000 to 10,000 EUR |
| Quick order by SKU or CSV import | Low | 2,500 to 6,000 EUR |
| Multiple users per account (buyer, approver) | Medium | 5,000 to 14,000 EUR |
| ERP sync (stock, prices, invoices) | High | 10,000 to 30,000 EUR |
The top of the range fits wholesalers whose prices live in the ERP with hundreds of exceptions. The bottom fits those working with 5 to 10 simple price lists.
Budget, timeline and go-live options
Three approaches coexist in 2026 in Berlin and across Germany. The choice depends mostly on the volume of specific prices and on your ERP.
| Option | Initial cost (market estimate) | Annual cost | Time to go live |
|---|---|---|---|
| Packaged B2B SaaS (wholesale module) | 12,000 to 30,000 EUR | 8,000 to 24,000 EUR | 2 to 3 months |
| Shopify Plus with B2B features | 30,000 to 65,000 EUR | 28,000 to 40,000 EUR | 3 to 4 months |
| Custom platform, German agency | 60,000 to 120,000 EUR | 9,000 to 20,000 EUR | 4 to 6 months |
| Custom platform by Kolonell (complex app) | 7,000,000 to 15,000,000+ FCFA (10,670 to 22,870 EUR) | maintenance 75,000 to 120,000 FCFA per month | 3 to 5 months |
At Kolonell, a wholesale portal with customer pricing, credit limits and ERP integration falls under the "complex application" grid. A reduced scope (catalogue, ordering, group pricing, no ERP) can fit the "medium application" grid of 4,000,000 to 7,000,000 FCFA (6,100 to 10,670 EUR).
The typical plan has four steps: pricing rules workshop (2 to 3 weeks), build and integration (8 to 12 weeks), acceptance testing with 10 to 20 pilot customers (3 weeks), then gradual rollout by sales territory.
Mini case study
Hypothetical example: Jana, sales director of a foodservice supplies wholesaler in Berlin, manages 1,200 customers and 4,000 SKUs. Her 6 inside sales reps key in about 180 orders a day at 6 minutes each, or 18 hours of data entry daily.
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If 25% of orders move online in year one, the team saves 4.5 hours a day, about 990 hours over 220 working days. At a loaded cost of 38 EUR per hour, that is 37,600 EUR per year, before counting fewer keying errors (often 2 to 4% of lines). For a platform at 80,000 EUR, payback is around 26 months on data entry time alone, and faster if reps reinvest those hours in prospecting.
FAQ
Should prices be shown to visitors who are not logged in?
In 80% of wholesale projects, prices stay hidden until login to protect negotiated terms. A public catalogue without prices remains useful for SEO and prospecting.
How are credit limits and 30-day terms handled?
The platform reads the credit cap from the ERP and blocks or holds any order that exceeds it. The customer chooses 30-day invoice, card or SEPA transfer, with a budget of 6,000 to 18,000 EUR for this module.
How many customers are needed to launch?
A pilot with 10 to 20 customers over 3 weeks is enough to fix pricing rules. Rollout to 1,200 customers then happens in waves of 200 to 300 accounts.
What share of online orders should we target in year one?
A realistic goal is 20 to 35% of orders. Wholesalers who coach customers by phone through their first orders often exceed 40% in year two.
Can the project be funded in phases?
Yes, a phase 1 at 40,000 to 50,000 EUR (catalogue, group pricing, ordering) followed by a phase 2 (credit, ERP, multi-user) spreads the investment over 9 to 12 months.
Let's scope your project. Send us your SKU count, customer count and how your price lists work for a precise estimate of scope, indicative budget and go-live 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.

