BigCommerce to Shopify Migration Services

If you’re evaluating a BigCommerce to Shopify migration, you’re likely running into one of a few common walls: BigCommerce’s app ecosystem feels thin compared to what you need, your team wants access to Shopify’s broader theme and developer talent pool, or you’ve simply outgrown the platform’s flexibility for the checkout and storefront experience you’re trying to build. Turnaround Commerce plans and executes BigCommerce to Shopify migrations for growing and enterprise merchants, handling the data movement, storefront rebuild, and app/integration replacement so the switch doesn’t disrupt revenue.

This page walks through what actually happens during a BigCommerce to Shopify migration, what tends to go wrong, and how we approach each phase.

Why Merchants Move From BigCommerce to Shopify

BigCommerce and Shopify solve similar problems but make different tradeoffs. Merchants typically initiate a migration for one or more of these reasons:

• App and integration availability. Shopify’s app marketplace and developer community are larger, which usually means more options for specialized tools — subscriptions, loyalty, personalization, marketplace sync — without custom-building everything.
• Theme and design flexibility. Shopify’s Liquid templating and theme architecture give designers and developers more room to customize storefronts without fighting the platform.
• Checkout and conversion tooling. Shopify’s checkout, and the surrounding ecosystem of conversion and upsell apps, is a frequent draw for merchants trying to improve conversion rate without a full custom build.
• Path to Shopify Plus. Merchants anticipating higher order volume or needing more advanced automation, scripting, or multi-storefront management often move to Shopify with a clear runway to Shopify Plus later.
• Talent pool. Because so much of ecommerce development happens on Shopify, it’s generally easier to find developers, agencies, and freelancers familiar with the platform than with BigCommerce.

None of this means BigCommerce is a bad platform — it means the two platforms fit different growth stages and technical needs, and it’s normal for a store to outgrow its original choice.

What a BigCommerce to Shopify Migration Actually Involves

A migration is not a single export/import step — it’s a sequence of distinct workstreams that need to be sequenced correctly. Here’s how we break it down.

1. Data Audit and Migration Planning

Before anything moves, we inventory what’s in the BigCommerce store: product catalog structure, variants and options, custom fields, customer records, order history, discount codes, and any custom data stored in BigCommerce’s API or metafields. BigCommerce and Shopify structure product variants, categories, and metafields differently, so a straight export/import rarely works cleanly — data usually needs to be mapped and cleaned before it lands in Shopify.

This is also where we decide what actually needs to migrate. Legacy customer records with no order history, discontinued products, or stale discount codes often don’t need to make the trip, and leaving them behind keeps the new Shopify store cleaner.

2. Product Catalog and Customer Data Transfer

Products, variants, images, pricing, inventory levels, and metafields get mapped from BigCommerce’s schema to Shopify’s. Customer accounts and order history are migrated so returning customers don’t lose their purchase history or have to re-register. Where BigCommerce stores information Shopify doesn’t natively support (certain custom fields, B2B pricing tiers, complex option sets), we either map it into Shopify metafields or account for it in the storefront/app layer.

3. URL Structure and SEO Preservation

This is one of the most consequential parts of any BigCommerce to Shopify migration, and it’s where a lot of DIY migrations lose organic traffic. BigCommerce and Shopify generate different URL patterns for products, collections, and categories by default. If old URLs aren’t mapped to their new Shopify equivalents with proper 301 redirects, search engines and inbound links start hitting 404 pages, and rankings built up over time can erode.

Our process includes crawling the existing BigCommerce site to build a full URL inventory, mapping every product, category, and content page to its new Shopify URL, and implementing redirects before launch — not after traffic drops and someone notices. We also carry over metadata (titles, descriptions, alt text) and check that canonical tags, sitemaps, and structured data are configured correctly on the new site.

4. Theme and Storefront Rebuild

Rather than forcing a BigCommerce template into a Shopify theme, we treat the storefront as a rebuild. That means selecting or customizing a Shopify theme that matches the brand’s design, rebuilding any custom functionality (filtering, product page layouts, custom checkout logic within Shopify’s constraints), and making sure the new site is responsive and fast. For merchants who want more control over the front end than a standard theme allows, a headless build on Shopify’s Hydrogen framework is sometimes a better fit than a traditional theme — that’s a separate conversation, but it’s worth knowing the option exists if your storefront requirements are complex.

5. App and Integration Replacement

Every BigCommerce app or built-in feature the store relies on needs a Shopify equivalent — reviews, subscriptions, loyalty, tax calculation, shipping rules, and any custom integrations with ERP, CRM, or fulfillment systems. We map each BigCommerce app to a Shopify replacement (or a custom-built alternative when no off-the-shelf app fits), test it against the same workflows the store currently runs, and confirm data flows correctly before launch.

6. Testing and Staged Launch

Before going live, we test the full purchase path — browsing, cart, discount codes, checkout, payment processing, tax calculation, shipping rates, and order confirmation — across devices. We also verify that inventory sync, customer account access, and any connected systems (email marketing, ERP, fulfillment) are passing data correctly. Migrations typically launch during a low-traffic window with a rollback plan in place, and we monitor closely in the days after launch to catch anything that only shows up under real traffic.

Common Risks in a BigCommerce to Shopify Migration — and How We Avoid Them

Most of the problems merchants run into after a migration trace back to a handful of avoidable mistakes:

• Broken or missing redirects causing lost organic traffic and 404 errors on previously ranking pages.
• Incomplete data mapping — variants, custom fields, or metafields that don’t transfer and quietly disappear from product pages.
• Untested checkout paths — tax rules, shipping zones, or discount logic that worked on BigCommerce but behaves differently on Shopify.
• App gaps — features customers relied on (reviews, saved carts, subscriptions) that don’t have a Shopify equivalent selected before launch.
• No staging environment — testing changes directly on the live store instead of a safe sandbox.

Planning for each of these up front — rather than discovering them after launch — is what separates a smooth migration from a rocky one.

Timeline and Scope Considerations

How long a BigCommerce to Shopify migration takes depends on catalog size, how much custom functionality needs to be rebuilt, how many integrations are involved, and whether you’re moving to standard Shopify or Shopify Plus. A smaller catalog with a fairly standard theme and few integrations moves faster than a large B2B catalog with custom pricing logic, ERP sync, and heavy customization. We scope this on a case-by-case basis after the initial data and requirements audit rather than quoting a generic timeline up front.

Frequently Asked Questions

Will my SEO rankings be affected by migrating from BigCommerce to Shopify?

Any platform migration carries some SEO risk if URLs, redirects, and metadata aren’t handled carefully. We build a full URL map and implement 301 redirects before launch specifically to minimize disruption, and we monitor indexing and crawl behavior afterward. We can’t guarantee rankings or a specific timeline for recovery, since search engine behavior involves factors outside any migration’s control, but proper redirect and metadata handling is the single biggest lever for preserving what you’ve already built.

Can I keep my existing product reviews and customer accounts?

In most cases, yes. Customer accounts and order history can be migrated so returning customers retain their history, and product reviews can typically be exported from your BigCommerce review app and imported into a Shopify equivalent, provided the original app supports export. We confirm feasibility during the initial audit since it depends on which specific apps and data formats are in play.

Do I need Shopify Plus, or is standard Shopify enough?

It depends on your order volume, need for advanced automation or scripting, and whether you’re running multiple storefronts or complex B2B logic. Many merchants migrate to standard Shopify first and move to Shopify Plus later once volume or complexity justifies it. We assess this during planning rather than defaulting everyone to the higher tier.

What happens to my BigCommerce store during the migration?

Your existing BigCommerce store stays live and operational while we build and test the new Shopify store separately. This lets us catch issues in a staging environment without affecting live sales, and the cutover — including final data sync and DNS changes — happens in a planned, low-traffic window to minimize disruption to customers and order processing.