Most migrations fail not because of the technology but because of the plan. As a Platinum Partner of Shopify, Datmos has guided leading commerce brands through migrations that don't just move data, they unlock growth.
This guide gives you the full picture: what to audit before you move, how to protect revenue during the transition, and how to launch on Shopify with a store that's built to perform from day one.
Why E-Commerce Brands Are Moving to Shopify?
Legacy platforms slow you down. Shopify gives commerce teams the speed, flexibility, and ecosystem they need to move fast and scale with confidence.
Speed & performance
Shopify's infrastructure handles millions of transactions a day with 99.99% uptime. Brands stop managing servers and start focusing on growth. Launches that used to take months now take weeks.
Ecosystem
With 13,000+ apps and deep integrations across ERP, PIM, OMS, and marketing stacks, Shopify connects your entire commerce operation without costly custom builds or brittle middleware.
TCO & ROI
Brands migrating to Shopify consistently reduce their tech spend while increasing conversion. No more licensing fees for features you don't use, just a platform that pays for itself.
Shopify Migration Insights from Simon Robillard, VP of Growth
What Actually Needs to Migrate
Before any technical work begins, a clear data inventory is essential. A complete migration scope covers:
Products
Products and catalog data, including SKUs, variants, descriptions, images, pricing, inventory, and category structure. Shopify supports up to 3 options and 2000 variants per product. Magento's configurable product model can exceed these limits, and catalogs with complex products need to be assessed before migration begins.
Customer records
Customer records, including names, email addresses, order associations, and account data. Customer passwords cannot be migrated due to platform encryption differences. A launch-day communication plan for password resets is a required component of every migration.
Order history
Order history migrates as read-only records. This preserves customer service context and analytics continuity without affecting live fulfillment workflows.
Content
Content and CMS pages, including blog posts, static pages, and metadata. Content that is still ranking in search should be treated as a business asset and prioritized in the migration plan.
Integrations
Third-party integrations. Every system connected to Magento needs its own migration track. ERPs, PIMs, CRMs, marketing platforms, and fulfillment systems do not move automatically. Each requires API reconnection and validation on the new platform.
The Migration Phases
- Discovery and Audit
Document every integration, custom module, and active extension. Map your current URL structure. Audit catalog for variant complexity. Define scope accurately before any build begins. - Design and UX/UI Review
Your Magento design likely will not translate well to a Shopify system. A new design, or a “refresh” will give the site a clean look and often will help conversion. - Data Preparation and Mapping
Clean before migrating. Remove outdated products, reconcile inventory, and normalize product data. Define field mapping between Magento and Shopify structures for products, customers, orders, and metadata. - Staging Build and Integration
Build and configure the Shopify Plus store in a staging environment. Import catalog and customer data, configure integrations, and develop or adapt the theme. - QA and Launch Readiness
Test every critical path: checkout, account creation, search, filtering, payments, order confirmation, and email flows. Validate 301 redirects and integration accuracy. For B2B: test company account access and customer-specific pricing. - Cutover and Post-Launch
Execute DNS cutover during a planned low-traffic window. Keep Magento in read-only state as a fallback reference. Monitor KPIs closely for the first 72 hours. The 30 to 60 days after launch are an active optimization period.
What to Expect on Timeline
Timeline is driven by catalog size, integration count, custom module complexity, and whether the migration includes a redesign.
These timelines assume the brand is resourced to participate: reviewing designs, testing, managing approvals, and validating data. Migration is a shared effort, and the brand side of the work is as important as the technical execution.
16 to 24 weeks
STANDARD
Under 5,000 products, limited customizations
Key Drivers: Clean catalog, standard integrations, limited custom modules
24 – 32 weeks
MID-MARKET
Moderate catalog, ERP integration, some custom functionality.
Key Drivers: Integration complexity, catalog data prep, possible light redesign.
24+ weeks
ENTERPRISE
Complex B2B, multiple storefronts, deep integrations.
Key Drivers: Custom B2B workflows, multi-store architecture, 10+ integrations.
Protect your SEO through migration
A platform migration is one of the highest-risk moments for organic traffic and most brands underestimate it. URL structures change, pages move, and without a deliberate plan, every broken link is a ranking signal your competitors are happy to absorb.
The good news: with the right preparation, your SEO doesn't just survive the migration, it comes out stronger.
Before launch, every changed URL needs a 301 redirect mapped to it. If you're running paid search campaigns, have your updated URLs ready to go live the moment the new store does, every hour of misaligned ad spend is wasted budget.
At launch, resubmit your sitemap in Google Search Console and watch crawl errors closely for the first 60 days. Some ranking fluctuation is normal and expected. Offset it by increasing your PPC budget in the short term to protect revenue while organic rankings restabilize.
A well-executed migration, paired with Shopify's faster page performance and cleaner site architecture, typically recovers rankings faster than brands expect, and often leads to better search visibility than before.
Migration success starts with your integration strategy
Every connected system needs its own migration track before cutover. Start by confirming whether a native Shopify connector exists, then validate API compatibility and define the data flows that need to work on day one. Rebuilding a broken integration after launch costs far more than planning it correctly before.
For CRM and marketing automation, the news is good. Tools like Bloomreach and Klaviyo connect natively to Shopify's event model, syncing customer behavior, purchase history, and catalog data in real time, with less configuration overhead than most legacy platform stacks require.
B2B is where attention to detail matters most. Customer-specific pricing, net payment terms, and company account structures all have native equivalents in Shopify Plus, but mapping your existing architecture to Shopify's B2B model requires careful configuration and thorough testing before go-live. Get this wrong and it surfaces immediately with your most important accounts.
Datmos is platform-agnostic, we work with the right partners to get your migration right.
Ready to migrate with confidence?
Every successful migration starts with the right partner. As a Shopify Platinum Partner, Datmos brings the strategy, the integrations, and the hands-on experience to move your commerce operation forward.
