The verdict in three sentences
Replatforming a B2B webshop for a Dublin based distributor or manufacturer costs 40,000 to 80,000 EUR excluding VAT (2026 market ballpark) and usually runs 4 to 6 months. If you are still on Magento 1, which stopped receiving official security patches in 2020, the migration is a risk decision before it is a design decision. The quote is driven by a short list of requirements, with account hierarchies, customer specific catalogues and order history migration carrying most of the cost.
The requirements that drive the quote
Irish B2B buyers, whether hardware merchants, pharmacies, hospitality groups or contractors, expect to reorder fast, see their own prices and pay on account. We split the specification into business requirements and platform requirements.
| Business requirement | Why it matters | Budget impact (2026 estimate) |
|---|---|---|
| Company accounts with buyer roles | Several staff order on one account with limits | 3,500 to 7,000 EUR |
| Customer specific catalogue and pricing | Negotiated discounts, restricted ranges | 5,000 to 10,000 EUR |
| Quick order by SKU or CSV upload | Reorders of 50 lines in a minute | 1,500 to 3,500 EUR |
| Approval workflows | Spend caps, manager sign off | 2,000 to 4,500 EUR |
| Pay on account and credit limits | 30 day terms, automatic hold on overdue accounts | 2,500 to 5,500 EUR |
| Quote requests converted to orders | Configured or bulk deals | 3,000 to 6,000 EUR |
| Irish and UK VAT handling | Correct VAT on cross border trade sales | 1,500 to 3,000 EUR |
| Platform and migration requirement | Why it matters | Budget impact (2026 estimate) |
| Catalogue migration from Magento 1 | Products, attributes, images, tier prices | 5,000 to 12,000 EUR |
| Customer and order history migration | Buyers reorder from past orders | 3,000 to 7,000 EUR |
| 301 redirect map | Protect search rankings of product URLs | 1,500 to 3,000 EUR |
| ERP connector (stock, prices, invoices) | One source of truth | 7,000 to 15,000 EUR |
| GDPR and accessibility | Consent records, password resets for migrated users | 1,500 to 3,500 EUR |
| Admin reporting and exports | Sales desk visibility, accounting exports | 2,000 to 4,500 EUR |
Magento 1 password hashes and customer data need careful handling: plan a forced password reset and inform customers before launch, and check your obligations with the Data Protection Commission guidance.
Sample quote, line by line
This is the kind of quote a Dublin agency could present in 2026 for the scope above. Figures are market ranges excluding VAT.
| Line | Low | High | Weeks |
|---|---|---|---|
| Discovery and detailed specification | 3,500 EUR | 6,500 EUR | 1 to 3 |
| UX and UI design (desktop, mobile, account area) | 4,500 EUR | 9,000 EUR | 3 to 6 |
| Platform build and B2B features | 14,000 EUR | 28,000 EUR | 6 to 18 |
| ERP connector | 7,000 EUR | 15,000 EUR | 9 to 18 |
| Data migration from Magento 1 | 7,000 EUR | 14,000 EUR | 12 to 20 |
| Testing, redirects, launch and hypercare | 4,000 EUR | 7,500 EUR | 20 to 24 |
| Total | 40,000 EUR | 80,000 EUR | 16 to 24 |
As a nearshore option, Kolonell's prices for a medium custom application are 6,100 to 10,670 EUR (4,000,000 to 7,000,000 FCFA), and 10,670 to 22,870 EUR and more for a complex one. A B2B portal with an ERP connector and a Magento 1 migration normally falls in the complex range. Maintenance at Kolonell runs from 53 EUR to 183 EUR a month. Whichever supplier you choose, the contract should state that you own the code, the data and the hosting accounts.
Mini case study
Illustrative example: Ciarán, e-commerce manager at a building supplies distributor in Dublin, processes 2,000 trade orders a month, 40% of them still keyed in by the sales desk at about 8 minutes each, or roughly 107 hours a month. If the new platform lifts online share to 80%, keyed orders drop to 400 and desk time to about 53 hours, freeing 54 hours a month, about 1,900 EUR at a loaded 35 EUR per hour. Add a 6% higher average order on 90,000 EUR of monthly online sales, around 5,400 EUR of extra revenue. On a 62,000 EUR project with a 25% gross margin, the gain is about 3,250 EUR a month and payback lands near 19 months, while the security risk of Magento 1 disappears on day one.
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FAQ
Is Magento 1 really a problem if the site still works?
Official support ended in June 2020, so new vulnerabilities are not patched by the vendor. For a store holding customer accounts and payment flows, that exposure usually outweighs a 40,000 EUR project.
Which platform should replace Magento 1?
Adobe Commerce, Magento Open Source, Shopify with its B2B features or a custom build can all work. Compare total cost over 3 years, including licences or subscriptions, extensions and upgrades, often 5,000 to 15,000 EUR a year.
Can we keep our customers' order history?
Yes, typically 3 to 5 years of orders, mapped to the new customer and product IDs. Budget 3,000 to 7,000 EUR and test a sample of at least 200 orders line by line.
How do we avoid losing Google rankings?
Map every old product and category URL to its new address with 301 redirects. Monitor Google Search Console closely for the first 8 weeks after launch.
Why does it take 4 to 6 months?
The ERP connector and migration need several test runs, and user acceptance testing takes 3 to 4 weeks. Projects started without a detailed specification often run past 7 months.
Let's scope your project. Share your catalogue size, ERP and must have requirements, and we will send a line by line quote, an indicative budget and a realistic migration plan. 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.
