How to Migrate from Shopify to BigCommerce in 2026: The Complete Operator’s Guide
Migrating from Shopify to BigCommerce is a high-stakes operational move. Here's how to do it without destroying revenue, SEO rankings, or customer data.
By Sarah Paterson ·
·
8 min read
Platform migration is one of the highest-risk, highest-reward decisions a scaling ecommerce operator can make. For brands currently sitting on Shopify who are eyeing BigCommerce — whether for its native B2B features, lower transaction fees, or more flexible catalog architecture — the move is increasingly attractive in 2026. But the window between “let’s migrate” and “we broke our checkout during peak season” is narrower than most founders expect.
This guide is for operators running $2M–$50M in annual GMV who are seriously evaluating a Shopify-to-BigCommerce migration. We’ll walk through every stage: pre-migration audit, data transfer, SEO preservation, app stack replacement, and go-live sequencing. Expect specific tooling, realistic timelines, and the places where operators consistently burn margin if they’re not careful.
📊 Platforms & Tools · By The Numbers
📈
0.5%
Growth
🎯
2%
Impact
💰
40%
Revenue
⚡
12%
Efficiency
Why Are Operators Actually Migrating from Shopify to BigCommerce in 2026?
The motivations vary by segment, but a few themes dominate conversations with operators who’ve made the move recently. BigCommerce’s pricing model — no transaction fees at any plan tier, compared to Shopify’s 0.5%–2% on third-party gateways — is a meaningful line item at scale. A brand doing $10M annually through Stripe on Shopify Advanced is paying roughly $15,000–$20,000 per year in platform transaction fees alone.
Beyond fees, BigCommerce’s native B2B functionality — price lists, customer group pricing, purchase orders, and quote management baked into the Enterprise plan — is pulling wholesale and hybrid DTC/wholesale operators away from Shopify’s more app-dependent B2B stack. Shopify’s B2B features, while improved since the 2024 checkout extensibility overhaul, still require significant app layering for complex catalog scenarios.
“We were paying for three separate Shopify apps just to replicate what BigCommerce gives you in the core plan. Once we mapped out the true total cost of ownership, the migration math became obvious.” — Rachel Dunmore, COO, Calloway Supply Co., a $14M industrial DTC brand that completed its migration in March 2026
💡 Article Summary
Key Insights
1
Why Are Operators Actually Migrating from Shopify to BigCommerce in 2026?
2
What Should You Audit Before You Start the Migration?
3
How Do You Transfer Data Without Corrupting Your Catalog or Customer Records?
4
How Do You Protect SEO Rankings During the Migration?
5
How Do You Rebuild Your App Stack on BigCommerce?
Source: Ecommerce Times
Catalog complexity is the third driver. BigCommerce supports up to 600 variants per product natively, versus Shopify’s 100-variant limit (with workarounds required through apps like Infinite Options or Variant Robot). For apparel, customizable goods, or configurable hardware brands, this matters operationally at scale.
What Should You Audit Before You Start the Migration?
The pre-migration audit is where most operators underinvest. Plan for two to three weeks minimum before touching any data. Here’s what to systematically inventory:
Product catalog depth: Total SKUs, variant counts, metafields, product bundles, and any custom product types. Export a full product CSV from Shopify admin and flag anything outside standard fields.
Customer data and order history: Shopify exports customer records cleanly, but account passwords cannot be migrated (BigCommerce uses a different hashing algorithm). Plan for a password-reset flow at launch.
URL structure: Shopify uses /products/, /collections/, and /pages/ path structures. BigCommerce uses /product.html and /category/ by default. Every URL change is an SEO risk — map them all before you touch anything.
App dependencies: List every Shopify app and categorize each as: natively available on BigCommerce, replaceable with a BigCommerce-native equivalent, or requiring custom development. Use the BigCommerce App Marketplace plus tools like G2 and Sleeknote’s compatibility database to map alternatives.
Theme and frontend complexity: Are you on a standard Shopify theme (Dawn, Impulse, Prestige) or a custom Liquid build? Custom Liquid will not translate — BigCommerce uses Handlebars.js via its Stencil framework. Budget accordingly.
Integrations: ERP connections (NetSuite, Brightpearl), 3PL integrations (ShipBob, ShipMonk), and marketing tools (Klaviyo, Attentive) all need reconnection. Most major vendors support BigCommerce natively, but confirm version compatibility before committing to a timeline.
How Do You Transfer Data Without Corrupting Your Catalog or Customer Records?
Data migration is the technical core of the project. You have three paths: manual CSV export/import, a third-party migration tool, or a custom API-based migration built by your development partner.
For operators under 5,000 SKUs with relatively clean catalog data, Cart2Cart and LitExtension are the two most widely used migration tools in 2026. LitExtension’s BigCommerce module handles products, customers, orders, reviews, and URL redirects in a single workflow. Pricing starts around $200 for a standard migration and scales with entity volume. Cart2Cart adds a delta migration feature — useful for keeping your Shopify store live during the transition and syncing net-new orders before final cutover.
“We used LitExtension for the bulk transfer and then spent two weeks manually QA-ing the top 200 SKUs by revenue. That QA pass caught 34 metafield mapping errors that would have broken our product pages on day one.” — Marcus Teller, Head of Ecommerce, Boreal Outdoor Gear, $8M DTC brand, April 2026
For operators above 10,000 SKUs or with complex variant structures, a custom API migration via BigCommerce’s V2/V3 REST APIs and Shopify’s Admin API is the more reliable path. Budget $8,000–$25,000 for development depending on catalog complexity, and plan for six to eight weeks of engineering time.
Critical data migration steps in sequence:
Export and validate all Shopify data in staging before touching production
Run a test migration on a BigCommerce sandbox store — BigCommerce provides free trial stores for this purpose
Import customer records, then immediately segment customers for password-reset email flow in Klaviyo or Attentive
Import historical order data for customer service continuity — BigCommerce supports order import via CSV for records that don’t require active processing
How Do You Protect SEO Rankings During the Migration?
SEO is where migrations go quietly wrong. A brand can execute a technically clean data transfer and still lose 30–40% of organic traffic in the first 90 days post-launch because of URL mismatches and missing redirect logic.
Start with a full crawl of your Shopify store using Screaming Frog SEO Spider before migration begins. Export every indexed URL — products, collections, blogs, and pages. This becomes your redirect map.
BigCommerce has a built-in 301 redirect manager, but for stores with more than 500 URLs, use a bulk redirect import via CSV. Map every Shopify URL to its BigCommerce equivalent. The most common failure points are collection-to-category redirects (Shopify’s /collections/mens-jackets to BigCommerce’s /mens-jackets/) and blog post paths (/blogs/news/post-title to /blog/post-title/).
Additional SEO preservation checklist:
Carry over all meta titles, meta descriptions, and alt text — do not let migration tools default to auto-generated values
Verify canonical tags are correctly implemented on the new BigCommerce theme before go-live
Submit an updated XML sitemap to Google Search Console within 24 hours of launch
Monitor Google Search Console’s Coverage report daily for the first 30 days post-launch
Set up Ahrefs or Semrush position tracking on your top 50 keywords before cutover so you have a clean baseline for comparison
“We lost about 12% of organic traffic in the first three weeks because we missed redirect mapping on our blog subdirectory. It recovered fully by week eight, but that’s three weeks of lost revenue that proper QA would have prevented.” — Rachel Dunmore, Calloway Supply Co.
How Do You Rebuild Your App Stack on BigCommerce?
The BigCommerce app ecosystem is smaller than Shopify’s — roughly 1,200 apps versus Shopify’s 14,000+ — but coverage for core commerce functions is solid in 2026. Here’s how the most common Shopify apps map to BigCommerce equivalents:
Email/SMS: Klaviyo and Attentive both have native BigCommerce integrations with full event tracking. No functional gap here.
Reviews: Yotpo and Okendo both support BigCommerce natively. Stamped.io is another strong option at lower price points.
Subscriptions: Recharge added BigCommerce support in 2025. Ordergroove has supported it longer and is the more mature integration for complex subscription logic.
Search and merchandising: Searchanise and SearchPie both run on BigCommerce. For higher-volume catalogs, Constructor.io and Klevu have native BigCommerce connectors.
Upsell/cross-sell: Frequently Bought Together has a BigCommerce version. Bold Commerce’s suite (Upsell, Bundles, Custom Pricing) is particularly strong on BigCommerce given the platform’s shared history with Bold.
Loyalty: LoyaltyLion and Smile.io both support BigCommerce natively.
Shipping rules: ShipperHQ — which originated as a BigCommerce tool — is the gold standard for complex shipping rate logic on the platform.
The gap areas: Shopify’s Flow automation has no direct BigCommerce equivalent. Operators who’ve built complex Shopify Flow automations will need to replicate that logic in Zapier, Make (formerly Integromat), or a custom middleware layer. Budget two to four weeks of operations time for this rebuild.
What Does the Go-Live Sequence Actually Look Like?
The final launch sequence is where operators who’ve done the prep work separate from those who haven’t. A clean cutover requires coordination across DNS, payment processing, email flows, and your 3PL or warehouse system.
Recommended go-live window: Tuesday or Wednesday morning, off-peak traffic hours. Avoid Friday launches — you want your full team available for the first 48 hours.
Launch day checklist in order:
Freeze new orders on Shopify store (put it in password-protected mode) at T-minus 2 hours
Run final delta migration of any orders placed since your last data sync
Update DNS to point your domain to BigCommerce — TTL propagation typically takes 15–60 minutes with Cloudflare
Verify SSL certificate is active on BigCommerce before removing Shopify DNS
Test checkout end-to-end with a real $1 transaction before removing the password page
Activate Klaviyo and Attentive integrations and verify event firing via their respective debugger tools
Confirm 3PL or WMS connection is receiving new orders from BigCommerce
Send internal launch notification with rollback protocol documented — keep Shopify store accessible for 72 hours post-launch as a fallback
Total realistic timeline for a mid-market migration done properly: 10–16 weeks from audit start to live date. Operators who try to compress this to six weeks consistently report SEO damage, broken integrations, or customer data gaps that take months to remediate.
The brands that execute cleanest are the ones that treat migration as an engineering project with a dedicated project manager, a weekly stakeholder cadence, and a written go/no-go checklist approved by leadership before DNS changes. The brands that struggle treat it as a technical task to be delegated and checked in on at the end.
BigCommerce’s platform has matured significantly, and for the right operator profile, the economics and functionality are genuinely compelling. But the migration itself is the cost of entry — and that cost is paid in planning time, not just development budget.
