The verdict in three sentences
A B2B e-commerce portal for 180 resellers costs CAD 60,000 to 150,000 in Montreal (about EUR 40,000 to 100,000) and EUR 35,000 to 90,000 in Nantes, delivered in 4 to 6 months, with a platform licence of EUR 0 to 2,000 per month. The four functions that create value are customer-specific pricing, order minimums, net-30 payment terms and ERP stock synchronisation. Expected gains, -50% order entry and +15% average order value, pay the project back in 12 to 20 months for a mid-sized manufacturer.
What each component costs
A B2C store is not enough: resellers want their prices, terms and credit balance, not a public catalogue. The bill depends mostly on the depth of ERP integration (Sage X3, Acumatica, NetSuite, SAP Business One, Odoo). Figures below are Nantes rates; Montreal agencies at CAD 120 to 175 an hour land 10 to 20% higher in euro terms.
| Functional component | 2026 range (EUR, excl. tax) | Indicative timeline |
|---|---|---|
| Catalogue, search, technical sheets | 6,000 - 14,000 | 3-4 weeks |
| Reseller accounts, multi-user, buyer/approver roles | 4,000 - 9,000 | 2-3 weeks |
| Negotiated pricing, family discounts, net prices per customer | 5,000 - 12,000 | 2-4 weeks |
| Order minimums, free shipping threshold, pack sizes | 2,000 - 5,000 | 1-2 weeks |
| Net-30 terms, credit limit, card and bank transfer | 3,000 - 8,000 | 2 weeks |
| ERP sync (stock, prices, orders, invoices) | 10,000 - 30,000 | 4-8 weeks |
| Quick order by SKU, CSV import, reorder | 2,000 - 5,000 | 1-2 weeks |
| Sales reporting and document area | 3,000 - 7,000 | 1-2 weeks |
ERP integration alone accounts for 25 to 35% of the budget. Standard connectors exist for some pairings (native Odoo, Sage through middleware); otherwise you build an API or use scheduled file exchange, cheaper but less responsive.
Which platform to choose
| Solution | Monthly licence | Typical project budget | Fits when |
|---|---|---|---|
| Custom build (Next.js + API) | EUR 0 | EUR 50,000 - 90,000 | Complex pricing rules, specific ERP |
| Open source (Sylius, PrestaShop B2B) | EUR 0 - 300 (modules) | EUR 35,000 - 70,000 | In-house PHP team, controlled budget |
| Shopify Plus B2B | ~USD 2,300 | EUR 30,000 - 60,000 | Simple catalogue, speed |
| Adobe Commerce B2B | EUR 2,000+ | EUR 80,000 - 200,000 | Large group, multi-country |
| Specialised B2B SaaS (Sana, OroCommerce) | EUR 800 - 2,000 | EUR 40,000 - 90,000 | Microsoft or SAP ERP |
For 180 resellers and a few thousand SKUs, custom or open source usually gives the best five-year total cost of ownership, since there is no licence indexed on revenue. In Quebec, plan French-language content from day one to comply with Bill 96.
Measuring the gains
The two main levers are sales administration and basket size. When resellers order on their own, with their prices and real stock, re-keying of purchase orders received by email or phone drops sharply. Related-product suggestions and a visible free-shipping threshold push average order value up, with 10 to 20% increases observed on this type of portal.
Mini case study
Caroline is sales director of a kitchen equipment manufacturer in Nantes selling through 180 resellers. Three order-desk assistants key in about 9,000 orders a year at 12 minutes each: 1,800 hours, a loaded cost of EUR 63,000 per year (EUR 35 an hour).
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Selected project: EUR 65,000 custom build with a Sage X3 connector, EUR 4,000 a year hosting and EUR 9,000 maintenance. Effects: -50% order entry, so EUR 31,500 saved, and +15% average order value. On EUR 6 million of reseller revenue, 40% of which goes through the portal in year one, that means EUR 360,000 of additional sales, about EUR 54,000 of margin at 15%. Payback in under 10 months. The same scope quoted in Montreal came to CAD 110,000.
FAQ
How much does a B2B reseller portal cost in Montreal in 2026?
Plan for CAD 60,000 to 150,000 depending on pricing complexity and ERP integration, over 4 to 6 months. Licences range from zero for a custom build to about EUR 2,000 a month on SaaS.
Is ERP integration needed from day one?
For stock and prices, yes, otherwise resellers order unavailable products. A first version with file exchange every 15 minutes costs EUR 5,000 to 8,000 and can be enough.
How do net-30 terms work online?
The portal reads each customer's authorised credit from the ERP and blocks orders beyond it. Card remains available for new resellers, with fees of 1.2 to 1.8% in the eurozone and about 2.5 to 2.9% in Canada.
Will resellers actually order online?
Adoption usually reaches 40 to 60% of orders in year one if quick order by SKU and CSV import are available. Onboarding the 30 largest accounts personally speeds it up considerably.
Can the portal serve other countries?
Yes. Multi-currency and multilingual support add EUR 5,000 to 12,000, plus tax handling such as GST/QST in Canada or EU intra-community VAT.
Let's scope your project. We scope your reseller portal: pricing rules, ERP to connect, number of accounts and an indicative budget of EUR 35,000 to 90,000 (CAD 60,000 to 150,000) over 4 to 6 months. 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.
