B2B wholesale e-commerce platform cost in 2026: Shopify Plus vs custom

The verdict in three sentences

A wholesale distributor still taking orders by phone, email, text and field reps hits a ceiling fast: pricing mistakes, stockouts discovered too late and poorly controlled trade credit. A custom B2B e-commerce platform between 60,000 and 150,000 USD handles customer-specific pricing, recurring orders, net terms and credit limits natively, while Shopify Plus (about 2,300 USD per month on an annual plan) covers much of this but relies on paid apps and integration work for the rest. Across 700 active accounts, the expected 22 % lift in average order value pays for either option within a year, so the choice comes down to how far your workflows depart from the standard.

What a New York wholesale distributor needs from a B2B platform

A food and consumer goods distributor serving New York delis, bodegas, independent grocers and restaurants across the five boroughs and New Jersey deals with account-level terms: volume price breaks, brand-level discounts, net 15 or net 30 terms, credit limits, delivery days by route.

The decisive features are: a catalogue with price lists per customer or segment, quick order from usual lists and one-click reorder, trade credit management (limit, open balance, automatic hold), payment by ACH, card or on account, a mobile app for field reps that works on weak signal, sync with inventory and the ERP (NetSuite, Acumatica, QuickBooks), and delivery route planning.

2026 pricing: Shopify Plus versus a custom platform

Shopify Plus starts around 2,300 USD a month on an annual commitment, or 27,600 USD a year, before B2B apps, ERP integration and agency setup. For a mid-sized distributor, the real 3-year cost often exceeds 110,000 USD.

In the US market, Shopify Plus is often the cheaper route over 3 years, and it remains the right choice for a brand selling both B2C and B2B. Custom earns its premium when your margin depends on workflows Shopify handles poorly: complex credit control, route-based delivery, offline rep ordering, or an ERP that needs deep two-way sync. Kolonell's nearshore delivery keeps custom builds toward the lower end of that range.

Where the 22 % lift in average order value comes from

Three mechanisms explain most of the gain. End-of-order recommendations (accounts in your area also order this) add 1 to 3 SKUs per basket. Price breaks shown in real time (4 more cases to unlock tier 2 pricing) encourage consolidated orders. And 24/7 availability captures evening and Sunday orders that used to be lost or placed with a competitor.

Mini case study

Daniel, VP of sales at a food and consumer goods distributor in New York, serves 700 active accounts ordering on average 3 times a month with a 1,200 USD basket, or 2.52 million USD of monthly revenue. At an 18 % gross margin, a 22 % lift in average order value on the 60 % of orders placed online represents 2,520,000 x 60 % x 22 % = 332,640 USD of extra monthly revenue, or about 59,900 USD of monthly gross margin.

A custom platform quoted at 110,000 USD plus 2,500 USD a month of maintenance yields a net monthly gain of 59,900 - 2,500 = 57,400 USD. Payback takes about 2 months. A Shopify Plus setup delivering the same lift would pay back just as fast, so the deciding factor is whether credit control, routes and rep ordering justify the extra build cost.

FAQ

How much does a B2B wholesale e-commerce platform cost in 2026?

A custom platform costs 60,000 to 150,000 USD depending on features and integrations, plus 1,800 to 3,500 USD a month for maintenance and hosting. Shopify Plus starts around 2,300 USD a month before apps and setup.

Can accounts pay on terms or by ACH?

Yes, each account can pay by card, ACH or on account, with invoices reconciled automatically. ACH processing typically costs well under 1 % per transaction, far less than card fees.

How do you handle customers buying on credit?

Each account has a credit limit and payment terms. The platform automatically holds an order that exceeds the limit and sends reminders at day -3, day 0 and day +7 by email or text.

Can field reps take orders on the platform?

Yes, a mobile app lets reps enter orders at the customer's store, even with weak signal, then sync. In comparable projects, the time from order capture to picking drops from 1 day to under 2 hours.

Do we have to replace our ERP?

No, the platform connects to your ERP or accounting software for items, stock, pricing and invoices. The connector usually accounts for 8,000 to 20,000 USD of the budget.

Let's scope your project. Tell us your number of accounts, SKUs and current ERP: we will return a scope, an indicative budget between 60,000 and 150,000 USD and a 3 to 5 month plan. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.