Migrating a B2B Magento store to Shopify or Sylius: cost and SEO risks in Amsterdam (2026)

The verdict in three sentences

Staying on an ageing Magento is expensive: an Adobe Commerce licence around 50,000 EUR a year, security patches, incompatible extensions and scarce developers. Shopify Plus cuts total cost of ownership sharply if your B2B stays standard, while Sylius keeps full freedom over complex business rules. The real risk is not technical but SEO: without a plan of 8,000 301 redirects, a 12,000-SKU site can lose 30% of its traffic, versus under 5% with a prepared migration.

Total cost of ownership: Magento, Shopify Plus or Sylius

For a merchant selling 4 million EUR online, the 3-year saving sits between 30,000 and 210,000 EUR. The choice depends on B2B complexity: per-client pricing, configurators, online quotes, real-time ERP connection.

The SEO plan that keeps traffic loss under 5%

A failed migration shows in Search Console within 3 weeks: 404 pages, deindexed categories, falling organic revenue. The plan that protects traffic has six steps:

• Inventory: full crawl of the old site (Screaming Frog, server logs), export of every URL that receives traffic or links.
• Mapping table: 8,000 line-by-line 301 redirects, product to product, category to category, never to the homepage.
• Content preservation: title tags, descriptions and category copy kept identical at launch.
• Staging test: automated test of all 8,000 redirects, 0 redirect chains, 0 loops.
• Off-peak switch: avoid your busiest season, choose a quiet period.
• 90-day monitoring: daily check of 404 errors and rankings on 200 priority keywords.

Mini case study

Sanne, e-commerce director of a professional furniture manufacturer in Amsterdam, manages 12,000 SKUs and 4 million EUR of online revenue, 55% of it from organic search. Her Adobe Commerce setup costs 105,000 EUR a year all-in.

She migrates to Sylius for 95,000 EUR, with a recurring budget of 45,000 EUR a year. The annual saving reaches 60,000 EUR, so the project pays back in 19 months. On the SEO side, a 30% traffic loss would have cost 660,000 EUR of organic revenue over a year. With 8,000 prepared redirects, the loss is contained to 4% for 2 months, about 15,000 EUR of revenue, then traffic exceeds its initial level by the fourth month thanks to a 40% faster site.

FAQ

How much does a Magento to Shopify Plus migration cost?

For a B2B site with 10,000 to 15,000 SKUs, allow 50,000 to 90,000 EUR, plus about 2,300 USD a month of subscription. The budget rises if pricing rules require custom apps.

Is Sylius a serious alternative to Magento?

Yes. Sylius is an open source framework built on Symfony, suited to complex B2B. The project costs 70,000 to 110,000 EUR but there is no licence to pay afterwards.

How many 301 redirects should we plan?

As many as URLs with traffic or external links. For 12,000 SKUs, teams often plan 8,000 redirects after excluding dead URLs and duplicate filter pages.

Can we keep customer and order history?

Yes. Customer accounts, addresses, order history and negotiated prices are migrated by script. Passwords are usually reset with an invitation email.

What timeline should we expect?

Allow 4 months for Shopify Plus and 5 to 6 months for Sylius, including 3 weeks of testing and a switch planned outside peak season.

Let's scope your project. Send us your SKU count, integrations and Search Console data: we will scope your Shopify Plus or Sylius migration between 50,000 and 110,000 EUR, delivered in 5 months. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.