BigCommerce to Shopify Migration: A Complete Guide

Moving an established BigCommerce store to Shopify is not simply a product import. Products may appear correctly while customer groups, modifiers, redirects, checkout rules, ERP connections, tracking, or historical orders still need work.

A successful BigCommerce to Shopify migration protects what already works while rebuilding the parts Shopify handles differently. Shopify’s own migration checklist recommends reviewing redirects, customer accounts, store configuration, transactions, refunds, fulfillment, and final launch settings.

For stores with large catalogs, custom workflows, B2B pricing, or important organic traffic, planning these dependencies before development can reduce launch-day surprises. You can get Shopify migration services that support data migration, storefront rebuilding, URL mapping, integrations, testing, and post-launch checks.

Quick Answer: A BigCommerce-to-Shopify migration usually moves products, customers, images, basic content, and selected order history. Product modifiers, customer groups, URLs, redirects, checkout configuration, apps, custom functionality, analytics, and integrations often need mapping, rebuilding, reconnecting, or testing inside Shopify.

What Should You Migrate, Rebuild, and Test?

The easiest way to scope the project is to separate the migration into three categories: data that can move, functionality that needs rebuilding, and systems that need testing.

Area	What Usually Moves	What Needs Rebuilding or Testing
Products	Titles, images, SKUs, prices	Variants, modifiers, collections, metafields
Customers	Names, emails, addresses	Passwords, groups, segments, account access
Orders	Selected history	Statuses, refunds, subscriptions, loyalty data
SEO	Existing copy and metadata	URLs, redirects, canonicals, sitemap, internal links
Store design	Logos and brand assets	Shopify theme, templates, navigation
Checkout	Product and customer information	Payments, taxes, shipping, discounts
Apps	Exportable data in some cases	Shopify app stack and custom features
Integrations	Existing business systems	ERP, CRM, POS, 3PL, accounting, analytics

Data That Usually Moves

Core catalog and customer information normally have a clear Shopify destination. Products, SKUs, pricing, images, addresses, and selected historical records can be migrated using CSV files, apps, APIs, or custom migration scripts. The challenge is preserving relationships between those records, not simply matching record counts.

Store Areas That Need Rebuilding

BigCommerce themes, page layouts, checkout configuration, navigation, filters, and app functionality do not simply become Shopify equivalents. These areas need Shopify-native implementation using themes, sections, templates, Shopify apps, Shopify Functions, or custom development.

SEO Items That Need Manual Mapping

Metadata can often be retained, but URL structures may change. Product, category, brand, blog, and CMS URLs need mapping to suitable Shopify destinations. Redirects, canonicals, internal links, sitemap setup, and indexing should therefore be treated as a separate migration workstream.

Checkout and Integrations That Need Testing

Payments, taxes, shipping, fulfillment, ERP, CRM, POS, accounting, and analytics must be validated using real migration scenarios. A connection showing “active” does not prove that orders and data are flowing correctly.

Phase 1: Plan the BigCommerce to Shopify Migration Before Moving Data

The strongest migrations begin with a documented scope. Planning reveals data dependencies, high-value URLs, custom features, app gaps, and business systems before those issues become launch blockers.

Audit the Existing BigCommerce Store

Record products, variants, modifiers, customers, orders, categories, brands, content pages, apps, and integrations. Also note which features are critical to revenue, customer service, fulfilment, and reporting.

List Products, Categories, Customers, Orders, and URLs

Export a complete data and URL inventory rather than relying only on the BigCommerce sitemap. Include top organic landing pages, product URLs, category URLs, brand pages, blogs, CMS pages, and campaign URLs.

Review Apps, Custom Features, and Integrations

Document what every BigCommerce app or custom feature does. For each one, decide whether Shopify provides a native feature, third-party app, Shopify Plus capability, or custom-development route.

Identify SEO Pages That Cannot Lose Traffic

Use Google Search Console, GA4, backlink data, and revenue reports to identify pages with search and commercial value. High-ranking or high-revenue pages should receive priority during URL mapping and post-launch QA.

Decide the Migration Method and Launch Timeline

The method depends on catalog size, custom data, historical orders, integrations, and feature complexity. Small stores may use CSV-based migration. Complex stores often need migration apps, APIs, or custom scripts.

Planning Item	Why It Matters
Product audit	Finds option, modifier, and SKU complexity
URL inventory	Creates the redirect baseline
Customer review	Reveals group and segment requirements
Order history review	Defines how much history needs moving
App audit	Shows which functions need replacement
Integration audit	Prevents business-system breaks

Quick Suggestion: Do not begin with “How quickly can we migrate?” Start with “Which current store functions cannot fail after launch?”

Phase 2: Move Product, Customer, and Order Data Correctly

A BigCommerce to Shopify data migration is successful when the information remains usable after import. Products appearing in Shopify is only the first validation step.

Product Titles, Images, SKUs, and Prices

Check product names, descriptions, images, SKUs, barcodes, prices, status, weights, and inventory. Preserve useful product content where possible instead of rewriting everything during the same migration.

Product Options, Variants, and Modifiers

This area deserves extra attention because BigCommerce options and modifiers do not always map directly to Shopify variants. A size or color choice may become a Shopify variant, while custom text fields, engraving options, add-ons, or special selections may require metafields, line-item properties, apps, or custom development.

Categories, Brands, and Shopify Collections

BigCommerce categories usually need mapping into Shopify collections. Brand pages may become vendor-based collections, dedicated pages, or custom collection structures depending on SEO and merchandising needs.

Customer Records, Groups, and Segments

Names, emails, phone numbers, addresses, and selected customer data can move, but customer groups need separate planning. They may translate into Shopify tags, customer segments, B2B company structures, apps, or custom logic depending on how pricing and access work.

Order History, Refunds, and Statuses

Historical orders are more complex because payment, fulfillment, refund, tax, and customer relationships are involved. Decide whether full order history is genuinely required inside Shopify or whether part of it can remain available through an external reporting or support system.

Data Cleanup and Import Testing

Do not import poor-quality data simply because it exists in BigCommerce. Remove obsolete products, duplicate customers, unnecessary categories, unused fields, and invalid records before the final migration.

BigCommerce Data	Likely Shopify Mapping
Product name	Product title
Category	Collection
Product option	Variant
Modifier	Metafield, line-item property, app, or custom setup
Customer group	Tag, segment, B2B structure, or app
Custom field	Metafield
Order status	Shopify order/fulfilment status

Expert insight: Validate migration by checking actual field values and relationships, not only total record counts. A product can migrate successfully while still carrying the wrong variant, modifier, price, inventory, or metafield value.

Phase 3: Rebuild the Shopify Storefront Experience

BigCommerce design does not transfer directly into Shopify. Brand assets can move, but the actual storefront needs Shopify themes, templates, sections, menus, app blocks, and collection structures.

Choose the Right Shopify Theme

Choose a theme based on catalog size, merchandising requirements, performance, filtering, mobile behavior, and required app compatibility. Do not choose only by demo-store appearance.

Rebuild the Homepage and Navigation

The homepage should reflect the new Shopify structure rather than copying BigCommerce section by section. Navigation also needs updating so collections, brands, content, account links, and policy pages point directly to final Shopify URLs.

Rebuild Product Page Templates

Product templates should support migrated variants, media, metafields, reviews, subscriptions, recommendations, delivery information, and other buying details. Complex product logic may require custom sections or app blocks.

Rebuild Collection Pages and Filters

BigCommerce categories and filters may behave differently from Shopify collections and Search & Discovery. Test filters by price, availability, size, vendor, product type, and important metafields.

Set Up Cart, Trust Signals, and Policies

Review the cart drawer or cart page, shipping information, returns, guarantees, payment messaging, contact details, and policy links. These elements affect the buying experience even though they are not part of the data import.

Review Mobile Experience and Page Speed

Check menus, collection filters, product media, variant selectors, pop-ups, sticky CTAs, forms, and cart behavior on mobile. For a custom storefront, Shopify development services can support theme implementation, templates, responsive layouts, and migration-specific functionality.

Storefront Area	Shopify Rebuild Requirement
Homepage	Theme sections and content blocks
Product pages	Shopify product templates
Category pages	Shopify collections
Navigation	Shopify menus
Cart	Cart drawer or cart-page configuration
Filters	Search & Discovery or another solution
Policies	Shopify policy pages

Phase 4: Protect SEO With URL Mapping and Redirects

SEO protection should begin before launch because BigCommerce and Shopify can use different URL structures. Google recommends preparing an old-to-new URL map, using permanent server-side redirects, updating internal links, and monitoring the migration in Search Console.

Export BigCommerce URLs

Combine the sitemap, crawler data, Search Console, GA4, backlink reports, CMS exports, and campaign URLs. This reduces the chance of missing pages that no longer appear in navigation but still receive search traffic or backlinks.

Map Product, Category, Brand, Blog, and CMS URLs

Every important old URL should have a deliberate destination. The destination should match the search intent of the previous page rather than simply avoid a 404.

Create One-to-One 301 Redirects

Use permanent redirects for URLs that have permanently moved. Shopify allows merchants to create or import redirects, and its migration guidance specifically recommends reviewing important pages and confirming that redirects work after launch.

Avoid Homepage Redirects, Chains, and Loops

Do not redirect dozens of unrelated pages to the homepage. Google warns that irrelevant mass redirects may be treated as soft 404s. It also recommends sending users directly to final destinations where possible.

Check Metadata, Canonicals, and Internal Links

Retain valuable titles, descriptions, content, and headings where they still fit the new page. Update internal links so navigation, blogs, product copy, breadcrumbs, and footer links point directly to Shopify URLs rather than relying on redirects.

Submit the Sitemap and Track Search Console

Shopify generates a sitemap for indexable store content. Submit the live sitemap in Google Search Console and monitor indexed URLs, exclusions, 404s, canonicals, clicks, and impressions.

BigCommerce URL	Shopify Target
Product page	Matching product
Category page	Matching collection
Brand page	Relevant collection or brand landing page
Blog post	Matching Shopify article
CMS page	Matching Shopify page
Removed product	Relevant replacement or appropriate 404

Expert Insight: Protect SEO during a BigCommerce to Shopify migration by mapping valuable old URLs to equivalent Shopify pages, adding permanent redirects, preserving useful content and metadata, updating internal links, validating canonicals, submitting the new sitemap, and monitoring indexing after launch.

Google recommends keeping site-move redirects active for at least one year so search signals have enough time to transfer.

Phase 5: Replace BigCommerce Apps and Custom Features

BigCommerce apps cannot simply be installed inside Shopify. Every business-critical feature needs a Shopify replacement strategy.

Reviews, Loyalty, and Subscriptions

Check whether historical reviews, points, memberships, subscriptions, and customer relationships can migrate to the selected Shopify apps. Feature availability alone is not enough; historical data continuity also matters.

Filters, Search, and Product Recommendations

Review how BigCommerce search and filtering currently use categories, brands, custom fields, and attributes. Shopify may need Search & Discovery, third-party search, metafields, or custom logic to reproduce the experience.

B2B Pricing and Customer Groups

BigCommerce customer groups often power wholesale pricing or restricted experiences. On Shopify, the replacement may involve customer tags, segments, Shopify B2B, Shopify Plus, or a third-party pricing solution. For more complex wholesale requirements, you can get expert Shopify Plus development that can support B2B architecture and enterprise workflows.

Discounts, Cart Rules, and Shopify Functions

Complex promotions and cart logic may need rebuilding using Shopify Functions, discounts, apps, or custom code. Test the exact business rules rather than only creating similarly named promotions.

Forms, Quotes, and Custom Workflows

Quote forms, product configurators, approval processes, and custom admin workflows often require separate implementation. Do not leave these until the final week before launch.

Custom Apps and API-Based Features

When no standard Shopify app matches the existing feature, custom development may be the better route. Shopify app development services can support store-specific applications, API integrations, and custom workflows.

BigCommerce Feature	Shopify Route
Reviews	Compatible review app
Subscription	Shopify subscription solution
Loyalty	Loyalty platform
Filters	Search & Discovery or app
Customer groups	Segments, tags, B2B, or app
Cart rules	Shopify Functions or app
Quote workflow	App or custom solution
Custom workflow	Custom Shopify app

Phase 6: Reconnect Checkout, Payments, Shipping, and Taxes

Checkout settings do not migrate as a single configuration package. Payments, taxes, shipping, discounts, gift cards, and notification flows need Shopify-specific setup.

Shopify Checkout Settings

Review guest checkout, customer accounts, contact fields, address requirements, consent settings, and checkout behavior. For Shopify Plus stores, also check any enterprise checkout requirements separately.

Payment Gateways and Test Transactions

Connect the final production payment provider and test successful and failed payments. Shopify’s migration checklist recommends testing successful and failed transactions, refunds, cancellations, and fulfillment before launch.

Tax Regions and Market Settings

Check where the store sells and how Shopify should calculate and display taxes in those regions. Tax configuration should follow the merchant’s actual registrations and professional tax advice where required.

Shipping Profiles, Zones, and Rates

Review shipping zones, product weights, carrier rates, free-shipping thresholds, pickup, local delivery, and fulfillment locations. Products requiring special delivery rules should receive dedicated test orders.

Discounts, Gift Cards, and Promotions

Recreate automatic discounts, codes, customer restrictions, date rules, bundles, and campaign promotions. Historical gift-card balances may require a separate migration plan depending on the store setup.

Order Notifications and Refund Flow

Check confirmation emails, shipping updates, cancellation notices, refunds, and fulfillment communications.

Setup Area	What to Verify
Checkout	Guest and customer flows
Payments	Success, failure, capture and refund
Taxes	Region rules and display
Shipping	Profiles, rates and thresholds
Discounts	Codes and automatic logic
Notifications	Order, shipment and refund messages

Quick Suggestion: Place at least one test order that continues through payment, fulfillment, cancellation, and refund. Testing only the confirmation page leaves several business-critical steps unchecked.

Phase 7: Reconnect Integrations and Business Systems

BigCommerce may already be connected with the systems that operate the business behind the storefront. Those connections need Shopify-specific configuration.

ERP and Inventory Systems

Test product, inventory, order, refund, and fulfillment synchronization. Pay attention to multi-location inventory and SKU mapping because one incorrect identifier can create repeated discrepancies.

CRM and Customer Support Tools

Confirm that customer profiles, tags, lifecycle information, support context, and lead data reach the right records.

POS and Retail Systems

Stores selling online and in physical locations should test shared inventory, customer records, returns, and retail sales flows.

3PL, Shipping, and Fulfilment Tools

Place real migration test orders and confirm that the 3PL receives the correct SKU, quantity, shipping service, address, and order metadata. Tracking and fulfillment statuses should also return to Shopify correctly.

Accounting and Tax Tools

Check invoices, taxes, payment values, fees, refunds, and settlement information.

GA4, Pixels, Search Console, and Merchant Center

Rebuild analytics and advertising tracking around Shopify’s production URLs and checkout behavior.

Confirm product views, add-to-cart, checkout, purchases, transaction IDs, revenue, and Merchant Center feed data. You can also get Shopify integration services to get support for ERP, CRM, POS, fulfillment, accounting, inventory, and other business-system connections.

System	Critical Test
ERP	Products, orders and inventory
CRM	Customers and segments
POS	Retail sales and stock
3PL	Routing, fulfilment and tracking
Accounting	Taxes, payments and refunds
GA4	Ecommerce events and revenue
Merchant Center	Product URLs, price and availability

Expert Insight: Test integrations by business outcome rather than status. “Connected” is not the same as “orders, inventory, and refunds are synchronizing correctly.”

Phase 8: Test the Shopify Store Before Launch

The final QA should validate the Shopify store as both a customer-facing website and an operating eCommerce system. Shopify’s current migration checklist recommends testing transactions, refunds, cancellations, fulfilment, store configuration, customer access, and the live storefront before opening the store.

QA Area	What to Test
Product data	Variants, modifiers, prices, images, inventory
Navigation	Menus, collections, filters and search
Checkout	Payments, taxes, shipping and discounts
SEO	Redirects, metadata, canonicals and sitemap
Apps	Reviews, loyalty, subscriptions and email
Integrations	ERP, CRM, POS, 3PL and accounting
Tracking	GA4, pixels, Search Console and Merchant Center
Mobile	Layout, forms, cart and performance

Product Data QA

Compare representative products against BigCommerce. Test simple products, high-variant products, special modifiers, sale items, out-of-stock products, and products using custom fields.

Collection and Navigation QA

Check category-to-collection mapping, menus, filters, breadcrumbs, search, internal links, and empty states.

Checkout and Payment QA

Test domestic, international, discounted, failed-payment, refund, and different shipping scenarios.

SEO Redirect QA

Run the old BigCommerce URL list through the new production-ready setup and confirm redirect destinations.

App and Integration QA

Test each business-critical app using real customer and order scenarios.

Analytics and Event Tracking QA

Confirm that a test order appears correctly in Shopify, GA4, advertising platforms, and connected reporting systems.

Mobile and Speed QA

Test representative devices and templates after production apps and analytics scripts are installed.

Launch Gate: The store should not launch because the import finished. It should launch because products, checkout, redirects, integrations, tracking, and real customer journeys have passed QA.

Launch Day: What to Check When You Go Live

Launch should follow a controlled sequence with clear ownership. This makes failures easier to identify and escalate.

DNS and Domain Settings

Point the live domain to Shopify and verify HTTPS, primary-domain settings, and important subdomains.

Redirect Upload and Testing

Activate the final redirect map and immediately test the highest-value organic URLs.

Test Orders After Launch

Place a small real order through the production payment gateway.

Follow it through inventory, confirmation email, ERP or 3PL, fulfillment, analytics, and any relevant CRM or accounting system.

Sitemap Submission

Submit the live Shopify sitemap through Google Search Console. Google recommends sitemap submission as part of helping its systems discover new URLs during a site move.

Analytics and Pixel Validation

Check live purchase events and revenue values rather than relying only on pre-launch tests.

Customer Support Monitoring

Watch for login, discount, product, payment, order-history, and delivery issues reported by early customers.

Rollback and Issue Escalation

Define which failures require an immediate fix, temporary workaround, paused campaigns, or wider rollback.

Post-Launch Monitoring After BigCommerce to Shopify Migration

A migration is not complete when the domain points to Shopify. The first 7 to 30 days provide critical evidence about SEO, orders, integrations, and customer behavior. Google notes that rankings can fluctuate temporarily while changed URLs are recrawled and reindexed. For medium-sized sites, processing can take a few weeks, while larger sites may take longer.

Check 404 Errors and Redirect Accuracy

Look for legacy URLs that were missed or mapped incorrectly. Add redirects only when a relevant destination exists.

Monitor Organic Traffic and Rankings

Compare important product, collection, blog, and landing-page performance against the pre-migration benchmark. Look at page-level changes rather than only total organic traffic.

Review Orders, Payments, and Fulfilment

Watch for failed payments, incorrect shipping rates, inventory differences, missing fulfillment updates, and refund problems.

Watch Customer Support Tickets

Support questions can reveal issues technical QA missed. Repeated login, discount, product, delivery, or order-history questions deserve investigation.

Check Integration Logs

Review failed jobs, webhooks, API errors, inventory discrepancies, duplicate records, and delayed order transfers.

Review Conversion Rate and Revenue

Compare cart activity, checkout completion, average order value, revenue, and conversion rate with the old store.

Post-Launch Area	What to Monitor
Redirects	Correct destinations
404s	Missing legacy URLs
Rankings	Important keywords and landing pages
Orders	Payment, shipping and fulfilment
Support	Login, order and discount issues
Integrations	Sync failures and missing data
Conversion	Cart, checkout, revenue and drop-offs

Quick Answer: During the first month after migration, monitor redirects, 404s, indexing, organic traffic, rankings, checkout, payments, inventory, fulfillment, integrations, support tickets, and conversion data.

BigCommerce to Shopify Migration Cost and Timeline

There is no useful fixed migration price without understanding the existing BigCommerce store. Two stores with the same number of products can require very different work if one uses basic variants while the other depends on modifiers, B2B pricing, subscriptions, ERP integrations, and thousands of SEO redirects.

Migration Factor	Basic Store	Mid-Size Store	Complex / Enterprise Store
Estimated cost	$1,500 to $5,000	$5,000 to $15,000	$15,000 to $50,000+
Estimated timeline	2 to 4 weeks	4 to 8 weeks	8 to 16+ weeks
Product catalog size	Small catalog with simple products	Medium catalog with variants, categories, images	Large catalog with complex options, modifiers, bundles, or custom fields
Data migration work	Products and basic customer data	Products, customers, categories, orders, images	Products, customers, orders, customer groups, custom fields, metafields
SEO migration	Basic URL mapping and redirects	Full redirect map for products, categories, blogs, CMS pages	Large URL audit, backlink page mapping, redirect QA, post-launch crawl checks
Theme and design work	Ready Shopify theme with minor changes	Custom theme sections and product page changes	Full custom Shopify theme, advanced UX, custom templates
Apps and features	Few standard Shopify apps	Reviews, loyalty, filters, email, subscriptions	Custom apps, Shopify Functions, B2B, wholesale, advanced workflows
Integrations	Basic analytics and payment setup	CRM, email, accounting, shipping, GA4, pixels	ERP, POS, 3PL, CRM, accounting, APIs, custom automation
Checkout setup	Standard checkout, basic payment and shipping	Multiple shipping rules, discounts, taxes, regions	Complex checkout rules, Shopify Plus, B2B pricing, custom logic
Testing and QA	Basic product and checkout testing	Data, SEO, apps, checkout, mobile, analytics testing	Full QA across data, integrations, redirects, checkout, reports, workflows

How CartCoders Helps With BigCommerce to Shopify Migration

A BigCommerce replatform touches data, storefront design, SEO, apps, checkout, integrations, and analytics. Handling these areas separately can create gaps when no one owns the full migration journey.

Our BigCommerce to Shopify migration services can cover:

• BigCommerce audit and migration planning
• Product, customer, and order migration
• Shopify theme and UX rebuild
• URL mapping and 301 redirect implementation
• App replacement and custom functionality
• ERP, CRM, POS, and 3PL integration
• Checkout, payment, and launch QA
• Post-launch monitoring and technical support

Businesses needing additional development capacity can also hire Shopify developers for migration-specific customization and launch work. The goal is not simply to reproduce BigCommerce inside Shopify. It is to move the useful data and customer journeys while rebuilding platform-specific functionality properly.

Contact us to discuss your BigCommerce store migration plans, catalog complexity, SEO requirements, integrations, and preferred Shopify launch timeline.

Final Verdict: Move Data Carefully, Rebuild Where Necessary, Then Monitor Everything

A successful BigCommerce to Shopify migration is a replatforming project, not a CSV exercise. Products, customers, images, and selected orders can move, but variants, modifiers, customer groups, design, apps, checkout, redirects, integrations, and tracking need deliberate Shopify setup.

A practical process is:

Plan → Move → Rebuild → Protect SEO → Reconnect → Test → Launch → Monitor

When each phase has clear acceptance criteria, the migration is far less likely to create unexpected ranking, checkout, inventory, or operational problems after launch.

Frequently Asked Questions