The verdict in three sentences
For a manufacturer with 3,000 SKUs opening online ordering to trade customers, WooCommerce B2B costs, as a 2026 order of magnitude, 12,000 to 30,000 EUR (about 13,000 to 33,000 USD) plus 500 to 2,000 EUR a year in plugins, while a custom store costs 45,000 to 100,000 EUR. WooCommerce is the right call while tiered pricing stays simple and the ERP connection is limited to stock and orders. Beyond a few dozen pricing rules or real-time sync, custom becomes cheaper over 5 years, with a 3 to 7 month timeline depending on the option.
What B2B online ordering demands from a manufacturer
A manufacturer's sales director (machined parts, packaging, professional hygiene products, building materials) does not sell like a consumer site. Customers are buyers who order by pack size, with negotiated prices, quantity breaks, technical references to find fast and lead times that depend on production.
Typical needs for a 3,000-SKU catalogue:
- Quantity break pricing and customer-specific net prices from the ERP.
- Technical search by part number, dimension, material, compatibility.
- Pack sizes and order multiples (case of 50, pallet of 1,200).
- Calculated lead time based on stock or production.
- Multi-user accounts, purchase orders and invoices.
- ERP sync of stock, orders, invoices and credit.
WooCommerce B2B or custom: technical limits
| Criterion | WooCommerce + B2B plugins | Custom |
|---|---|---|
| Setup (2026 order of magnitude, EUR) | 12,000 to 30,000 | 45,000 to 100,000 |
| Plugins and licences | 500 to 2,000 EUR a year | 0 licence |
| Customer net prices | Fine up to a few hundred customers | Unlimited, computed from the ERP |
| Complex pricing rules | Fragile beyond 30 to 50 rules | Dedicated engine |
| Performance at 3,000 SKUs and 50 variants | Needs tuning and caching | Built for the load |
| ERP connection | Connector or batch sync | Real-time API |
| Updates | Risk of plugin conflicts | Controlled |
| Timeline | 3 to 4 months | 5 to 7 months |
WooCommerce's limit is not product count but plugin stacking: one for roles, one for price lists, one for quotes, one for minimum quantities. Every update can break one of them. Custom flips the logic: the ERP stays the source of truth for prices and the store queries it.
Five-year total cost
| Item over 5 years (EUR) | WooCommerce B2B | Custom |
|---|---|---|
| Setup | 22,000 | 70,000 |
| Plugins and licences (5 years) | 6,000 | 0 |
| Performance hosting (5 years) | 6,000 | 9,000 |
| Maintenance and updates (5 years) | 24,000 | 35,000 |
| Fixes for plugin conflicts | 10,000 | 0 |
| Enhancements (new rules, ERP) | 25,000 | 12,000 |
| 5-year total | 93,000 | 126,000 |
In this mid scenario WooCommerce stays 33,000 EUR cheaper. The gap reverses when pricing and ERP changes are heavy: if each year brings new rules (framework contracts, prices indexed on raw materials), WooCommerce's enhancement line often exceeds 60,000 EUR over 5 years and custom wins.
At Kolonell this kind of store is quoted as a custom application: medium 4,000,000 to 7,000,000 FCFA (6,100 to 10,670 EUR) or complex 7,000,000 to 15,000,000+ FCFA (10,670 to 22,870+ EUR), depending on the ERP connection. See e-commerce and web applications.
Mini case study
Thomas Becker, sales director of an industrial packaging manufacturer near Stuttgart, manages 3,000 SKUs and 650 trade customers. Two inside sales staff key in 90 orders a day over 230 days at 12 minutes each: 4,140 hours a year, about 124,000 EUR at 30 EUR loaded per hour.
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Target: 50 % of orders online within 18 months. Time freed: 2,070 hours, so 62,100 EUR a year. With 120 negotiated pricing rules and an ERP requiring real-time stock sync, custom is chosen at 75,000 EUR plus 9,000 EUR a year of maintenance and hosting.
Net annual gain at cruising speed: 53,100 EUR. Payback in about 17 months, faster if online ordering lifts average basket size, which most manufacturers see thanks to one-click reorder.
FAQ
Can WooCommerce handle 3,000 B2B SKUs?
Yes, volume is not the issue with decent hosting and caching. Trouble comes from complex pricing rules and stacked plugins, beyond 30 to 50 pricing rules.
What does the ERP connection cost?
Allow 4,000 to 12,000 EUR with WooCommerce through a connector, and 10,000 to 25,000 EUR for a real-time API in a custom build. It is often the item that tips the decision.
Can we start on WooCommerce and move to custom later?
Yes, but migration usually costs 30 to 50 % of a new project. If your roadmap already includes framework contracts and real-time sync, start custom.
What timeline should we plan?
WooCommerce B2B takes 3 to 4 months, custom 5 to 7 months, including 6 to 8 weeks of ERP integration and testing with 15 to 20 pilot customers.
What about Shopify B2B?
It is a solid third option, with Shopify Plus at about 2,300 USD a month. It suits catalogues with simple rules, less so manufacturers whose prices depend heavily on the ERP.
Let's scope your project. We compare WooCommerce B2B and custom against your catalogue, pricing rules and ERP for launch in 3 to 7 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.
