B2B Wholesale Order Portal Build Cost in Singapore: 2026 Guide

The verdict in three sentences

A B2B order portal turns your 200-800 trade customers into self-service buyers who order 24/7 at their negotiated prices, freeing your phone lines. For a 5,000-50,000 SKU catalogue wired to your ERP, a B2B CMS module (Shopify B2B, BigCommerce B2B) costs 18,000-35,000 EUR; a custom platform runs 35,000-90,000 EUR. The real ROI is not the site: it is the 40-60 % drop in manual orders and the 18-30 % higher average basket.

B2B CMS module or custom platform?

This first decision shapes everything. A B2B CMS module covers 80 % of a standard wholesaler's needs in weeks; custom is justified when pricing logic, quotas or ERP integration break the mould.

Simple rule: under 5,000 SKUs with a clean pricing grid, the CMS module wins. Above that, or if the ERP drives real-time prices, custom pays back the gap fast.

The B2B features that make the difference

A wholesale portal is not a repainted consumer store. Fast reorder and account management functions drive adoption.

Commercial ROI: what the portal returns

Mini case study

Daniel heads sales at a foodservice supplies wholesaler in Singapore: 420 trade customers, 8,500 SKUs, 62,000 EUR monthly revenue. He invests 31,000 EUR in a B2B module wired to his ERP, plus 1,100 EUR/month maintenance. Within six months, 58 % of orders go self-service: his three inside-sales reps free up the equivalent of 1.5 FTE redeployed to prospecting, and the average basket climbs +22 %. On roughly 13,600 EUR of added monthly revenue plus lower payroll load, the investment pays back in about 9 months.

FAQ

How long to launch a B2B portal? Plan 6-10 weeks on a well-scoped CMS module, 4-7 months for a custom platform. The bottleneck is almost always catalogue data quality and the ERP link, not front-end development.

Can I keep negotiated prices confidential? Yes. Each account (or account group) sees only its own grid after login. An unidentified visitor sees no prices, or public prices, depending on your commercial choice.

Must I connect the ERP from day one? Ideally yes for real-time stock and prices, but you can start with a nightly file sync then move to real-time. An ERP connector adds roughly 6,000-15,000 EUR in 2026.

What maintenance budget should I plan? Between 700 and 1,800 EUR/month depending on criticality and volume, excluding major evolutions. A portal that takes orders must be monitored: security updates, monitoring, fixes.

Is mobile really useful in B2B? Yes: professional buyers increasingly order from a smartphone, especially for field reorders. A non-responsive portal loses 20-30 % of potential usage.

Let's scope your project. Tell us about your catalogue, your ERP and your number of trade accounts: we will advise module or custom, with an indicative budget (18,000-90,000 EUR) and a timeline. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.