Purchasing portal cost for a franchise network in London in 2026

The verdict in three sentences

For a network of 45 franchised bakeries around Lille, a purchasing portal for the central buying office costs in 2026 30,000 to 80,000 EUR excl. VAT custom built, or 500 to 2,000 EUR per month as a SaaS solution. The project pays for itself through 5 to 12% volume discounts negotiated with suppliers and by cutting off-network purchases that the franchisor currently cannot see. Allow 3 to 5 months, a large part of which goes into integrating supplier catalogues and getting franchisees on board.

For a London franchise network, budgets are comparable in GBP terms (roughly 26,000 to 69,000 GBP custom built), with the same economics.

Why centralise ordering in a franchise network

In a bakery network, every franchisee orders flour, butter, packaging, drinks and hygiene products. Without a shared tool, each one calls suppliers, negotiates alone and accepts different prices. The franchisor then loses three things: bargaining power, visibility on volumes and compliance with the concept specifications (certified flour, branded packaging).

With average purchases of 18,000 EUR excl. VAT per store per month, the network weighs about 9.7 million euros of purchases per year. One extra discount point is already worth nearly 97,000 EUR.

Custom or SaaS: comparing the options

Two families of solutions coexist. SaaS procurement platforms for networks offer a quick start but impose their logic. Custom development fits your rules (catalogue per brand, budgets, supplier rebates) but requires upfront investment.

Over five years, costs converge. SaaS remains relevant up to 30 or 40 outlets with simple rules. Beyond that, or if the buying office collects supplier rebates that must be redistributed or tracked closely, custom development wins.

The features that drive profitability

A useful purchasing portal goes beyond an online catalogue. The following features determine franchisee adoption and franchisor control.

Mini case study

Julien, purchasing director of a network of 45 franchised bakeries in the Lille metropolitan area (illustrative persona), estimates annual network purchases at 9.7 million euros, 28% of which are off-network. He opts for a custom portal at 55,000 EUR excl. VAT, plus 800 EUR per month of maintenance.

Goal: bring off-network purchases down to 10% and raise the average discount from 3 to 7% on listed volumes. Listed purchases rise from 6.98 to 8.73 million euros. Discount gain: 7% of 8.73 million minus 3% of 6.98 million, i.e. about 611,000 minus 209,000, so 402,000 EUR per year across the network. Even keeping only a quarter of that gain as a cautious assumption, about 100,000 EUR, the portal pays back in under a year, including 9,600 EUR of annual maintenance.

FAQ

How much does a purchasing portal for a franchise buying office cost? Allow 30,000 to 80,000 EUR excl. VAT for a custom portal and 500 to 2,000 EUR per month for a SaaS solution. The gap depends mostly on the number of suppliers to integrate and business rules.

How long to roll out the portal across 45 stores? Plan 3 to 5 months for custom development, including 4 to 6 weeks to integrate supplier catalogues. A pilot on 5 stores for 3 to 4 weeks secures adoption before full rollout.

Can the franchisor impose concept SKUs on franchisees? Franchise law allows imposing products linked to the network identity, but not all purchases. The portal therefore separates a mandatory catalogue, for example branded packaging, from a recommended catalogue, with 5 to 12% discounts as the argument.

How are existing suppliers integrated? Depending on maturity: EDI for large millers, API for modern distributors, CSV files or structured emails for small local suppliers. Each dedicated connector usually takes 3 to 10 days of development.

Does the portal help track year-end rebates? Yes, it aggregates volumes per supplier and calculates conditional rebates as soon as tiers are reached. This avoids gaps that often reach 1 to 2% of the purchases concerned.

Let's scope your project. Share your number of outlets, suppliers and annual purchase volume: we will compare SaaS and custom options, with budget and rollout plan. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.