Migrating from Magento to Shopify Plus: The Complete Guide

Why brands leave Magento

Magento (now Adobe Commerce) is a powerful platform, but it comes with significant operational overhead. Self-hosted infrastructure means your team manages servers, security patches, and performance optimisation. Development costs are high because Magento's codebase is complex and Magento developers command premium rates. And Adobe's enterprise pricing has pushed many mid-market brands to reconsider whether the platform justifies the cost.

Shopify Plus eliminates most of these pain points. Hosted infrastructure, lower development costs, a massive app ecosystem, and a platform that's actively investing in merchant tools. For brands doing $2M-$50M in annual revenue, the economics usually favour Shopify Plus. You can see how the total cost of ownership compares in more detail, but at most revenue levels the case is clear.

The migration process

Phase 1: Audit and planning (2-3 weeks)

Before we touch anything, we audit your Magento instance end to end. Product data structure (attributes, configurable products, grouped products), customer accounts, order history, URL structures, SEO metadata, third-party extensions, custom functionality, and integration architecture.

The goal is a complete map of what needs to move, what needs to be rebuilt, and what can be left behind. Most Magento stores have years of accumulated technical debt: custom modules that nobody remembers installing, abandoned extensions, and database tables that serve no purpose. Migration is an opportunity to clean house.

Phase 2: Data migration (3-4 weeks)

Product data migration from Magento to Shopify Plus requires custom scripting. Magento's EAV (Entity-Attribute-Value) data model is fundamentally different from Shopify's flat product structure. Configurable products become Shopify variants. Product attributes become metafields. Category trees become collections. Custom options become line item properties.

Customer data moves across with accounts, addresses, and order history. The one thing that cannot migrate is passwords. Magento and Shopify use different hashing algorithms, so customers will need to reset their passwords on first login. We handle the communication flow for this so it's seamless from the customer's perspective.

Phase 3: SEO preservation (ongoing)

This is where migrations most commonly go wrong. Magento URLs look nothing like Shopify URLs. Every product, category, and CMS page URL needs a 301 redirect to its Shopify equivalent. Miss one and you lose that page's search ranking. The broader impact of getting this wrong is covered in detail in our post on what actually happens to your conversion rate when you migrate from Magento to Shopify Plus.

We build comprehensive redirect maps covering every indexed URL in your Magento sitemap. We migrate meta titles, descriptions, canonical tags, and structured data. We submit the new sitemap to Search Console and monitor crawl errors daily for the first month post-launch.

Phase 4: Design and development (6-10 weeks)

You can replicate your existing Magento design on Shopify Plus or use the migration as an opportunity to redesign. Most brands choose to redesign. If you're investing in a migration, you might as well invest in a better customer experience.

For brands with complex content requirements or a strong editorial strategy, this is also the right moment to evaluate whether a headless architecture makes sense. A migration is one of the cleanest times to make that architectural shift, because you're rebuilding anyway. We run design and development in parallel with data migration so the overall timeline doesn't extend unnecessarily.

Phase 5: Integration re-architecture (parallel with Phase 4)

Every Magento extension and custom integration needs a Shopify equivalent. ERP connections (NetSuite, SAP, Cin7), email platforms (Klaviyo replacing Magento's built-in email or Dotdigital), reviews (Okendo or Yotpo replacing native reviews), search (Algolia or Shopify native), and shipping and fulfilment.

Some integrations have direct Shopify connectors. Others need custom API work. We map every integration during the audit phase and build them in parallel with the storefront development. The principles behind building these integrations well are covered in depth in our ERP and inventory integration guide.

Common migration mistakes

After running Magento to Shopify Plus migrations consistently, the failure patterns are predictable. The same mistakes appear on almost every project that runs into trouble.

Underestimating the redirect work

The 301 redirect map is the single most important deliverable in a Magento migration and the one most often treated as an afterthought. Magento stores accumulate URLs over years: product pages, category pages, CMS pages, blog posts, filtered URLs, and pagination variants. Missing even a significant subset of these means losing search equity that took years to build. The redirect map should be built during the audit phase, validated against your Magento sitemap and Search Console data, and tested in staging before a single line of code goes to production.

Treating data migration as a CSV export

Magento's EAV database structure cannot be accurately exported to a flat CSV and imported to Shopify without data loss. Configurable product relationships break. Attribute values get flattened incorrectly. Metafield data gets orphaned. Custom scripting against Magento's database and Shopify's API is the only reliable approach for anything beyond a trivial catalogue.

Deferring the email migration

Email is often pushed to a separate phase because it feels like a separate project. It isn't. Post-purchase flows, abandoned cart sequences, and customer segmentation all depend on Shopify order and customer data being correctly structured from day one. Migrating the store and leaving email until later means running a live store with broken automations. We rebuild Klaviyo flows in parallel with the storefront build and test them against staging data before launch.

Launching without a monitoring plan

Most migration issues don't surface during QA. They surface in the first two weeks of live traffic when real customers hit edge cases the test team didn't anticipate. Launching without a structured monitoring plan, covering crawl errors, 404s, payment failure rates, and integration sync errors, means finding out about problems from customers rather than from your own dashboards.

Post-launch: the first 30 days

Launch day is not the end of the project. For Magento migrations, the first 30 days post-launch are where most of the remaining risk lives.

Search Console monitoring

Submit your new sitemap to Google Search Console on launch day. Monitor crawl errors daily for the first two weeks. Any 404s that appear are either missing redirects or broken internal links that need fixing immediately. A spike in crawl errors in the first week is normal as Google re-indexes the new URL structure. A sustained spike after two weeks indicates a redirect problem that needs investigation.

Organic traffic benchmarking

Compare week-on-week organic traffic against your pre-migration baseline, broken down by landing page. A well-executed migration with a complete redirect map should see minimal organic traffic loss within 4-6 weeks as Google processes the redirects. Drops on specific pages indicate redirect gaps for those URLs. Fix them immediately, not at the end of the month.

Integration health checks

Run daily checks on every integration sync for the first two weeks: order flow to your ERP or 3PL, inventory sync back to Shopify, email platform event triggers, and review platform connections. Integration issues in the first days of live traffic are common and expected. What matters is catching them before they compound into data integrity problems. The monitoring approach we use is covered in our broader guide on making sure your tech stack works together.

Customer communication

The password reset requirement is the most visible disruption to customers post-migration. We send a phased communication sequence: a pre-migration heads-up explaining the change is coming, a launch-day email prompting customers to set a new password, and a follow-up two weeks later for customers who haven't logged in yet. Getting this sequence right significantly reduces support ticket volume in the first month.

Timeline and cost

A typical Magento to Shopify Plus migration runs 12-20 weeks and costs $60K-$150K+ depending on catalogue size, integration complexity, and whether you're redesigning or replicating. Simple migrations with small catalogues and standard integrations sit at the lower end. Complex multi-store Magento instances with custom ERP integrations and 50,000+ products sit at the upper end.

If the migration is also an opportunity to go headless, add 4-6 weeks and budget accordingly. The architectural decisions involved in that choice are covered in our guide on when to go headless on Shopify Plus. Our Shopify Plus developers handle the full scope of both paths.