The verdict in three sentences
A custom B2B ecommerce platform is not a consumer storefront: it handles customer-specific negotiated pricing, multi-user accounts, credit limits and recurring orders. In 2026, budget an order of magnitude of USD 45,000 to 110,000 depending on pricing-rule complexity and ERP integration. ROI comes from self-service: every order placed online instead of by phone frees your sales team for higher-value work.
What the quote covers
A B2B platform differs from a standard store through its account and permission logic. Here are the typical line items in a 2026 quote.
| Line item | Scope | Order of magnitude (USD) |
|---|---|---|
| Discovery & specs | Workshops, pricing rules, roles | 4,500 - 9,000 |
| Customer accounts & roles | Multi-user, internal approval | 7,000 - 16,000 |
| Negotiated pricing engine | Per-customer grids, volume discounts | 9,000 - 22,000 |
| Catalog & search | Products, variants, trade filters | 7,000 - 16,000 |
| Recurring orders & reorder | Lists, saved carts, quotas | 4,500 - 11,000 |
| ERP / inventory integration | Sync products, prices, credit | 9,000 - 28,000 |
| Payment & credit | Cards, transfer, terms | 4,500 - 9,000 |
Custom vs off-the-shelf
| Criterion | Custom | SaaS B2B solution |
|---|---|---|
| Upfront cost | USD 45,000 - 110,000 | USD 6,000 - 22,000 |
| Recurring cost | Hosting USD 120-450/mo | Subscription USD 600-2,800/mo |
| Complex pricing rules | Unlimited | Often capped |
| ERP integration | Native, tailored | Via paid connectors |
| Time to launch | 4 to 7 months | 6 to 12 weeks |
| Fit to your processes | Full | Partial |
Custom becomes worthwhile when your pricing rules and ERP flows fall outside the standard box, or when SaaS subscriptions exceed USD 1,700/month over time.
Mini case study
David, who runs an industrial-supplies wholesaler in Singapore, processes 220 orders/week by phone and email. Each order takes his sales team 12 minutes (loaded cost estimated at USD 0.50/minute), i.e. USD 6.00 per order and USD 1,320/week. By shifting 60% of orders to self-service, he saves USD 792/week, or roughly USD 41,000/year. On a platform priced at USD 72,000, payback lands around 21 months, before counting the higher average basket from online reordering.
FAQ
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How much does a custom B2B ecommerce platform cost in 2026?
Budget an order of magnitude of USD 45,000 to 110,000. A project with complex pricing grids and deep ERP integration often exceeds USD 90,000.
What timeline should I expect?
Between 4 and 7 months depending on the number of pricing rules, the depth of ERP integration and catalog migration. A self-service MVP can ship in 3 months.
Can I show different prices per customer?
Yes, that is the heart of B2B: each account sees its negotiated grid, volume discounts and payment terms, invisible to other customers.
How are credit limits and payment terms handled?
The platform integrates cards and bank transfer, plus net-30/60 terms with credit tracking and automatic blocking beyond the approved limit.
Do I have to connect the ERP?
Not at launch, but it is strongly recommended: syncing stock and prices prevents errors and overselling, and makes the experience reliable for your trade customers.
Let's scope your project. Share your order volume, pricing rules and ERP, and we'll frame the scope and an indicative budget. 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.