I’m Migrating to Shopify. What Should I Know?

The decision in plain English

Most merchants think a Shopify migration starts with the homepage. That is understandable, because the storefront is the part everyone can see.

But the real migration work is usually underneath the design. It is in the product catalog, URL structure, customer data, order history, fulfillment rules, tax setup, shipping logic, app stack, and integrations that keep the business moving.

A good Shopify migration does not copy the old store blindly. It decides what should come over, what should be cleaned up, and what should be replaced with native Shopify.

The practical goal is not to rebuild every old workaround. The practical goal is to launch a cleaner Shopify store that the team can actually operate after launch.

A Shopify migration is not a redesign

A redesign changes how the store looks. A migration changes where the business lives.

That means the project touches more than templates and visual polish. It can affect:

• Product handles, variant structure, images, SKUs, and metafields.
• Collection logic, navigation, filters, search, and merchandising.
• Customer accounts, tags, addresses, segments, and marketing permissions.
• Order history, gift cards, discounts, taxes, payment methods, and fulfillment.
• Apps for reviews, subscriptions, loyalty, returns, search, email, SMS, support, and analytics.
• Redirects from old URLs to new Shopify URLs.
• ERP, OMS, PIM, warehouse, accounting, and shipping integrations.

If those pieces are ignored until the end, the migration becomes chaotic. The site may look finished, but the business is not actually ready to sell.

Start with the data model

Before picking a theme or importing everything, look at how the current store is structured.

Ask questions like:

• Are product titles consistent?
• Are SKUs complete and unique?
• Are options like size, color, finish, material, and style modeled cleanly?
• Are variants being used correctly, or are there duplicate products that should be variants?
• Are old tags still meaningful, or are they years of leftovers?
• Are product specs stored structurally, or buried in descriptions?
• Are images named and assigned consistently?
• Are collections manual, automated, or both?

This is where many migrations get expensive. Old ecommerce platforms often carry years of fixes, experiments, seasonal tags, discontinued products, weird naming conventions, and apps that wrote data in their own format.

If that mess is imported as-is, Shopify inherits the mess.

Product variants need special attention

Shopify products have a specific variant model. Each product can have multiple variants, but those variants are created from product options such as size, color, style, finish, or material.

This matters because an old store might model products differently. A Magento, WooCommerce, BigCommerce, custom cart, or ERP catalog may not line up perfectly with Shopify’s product and variant structure.

Before importing, identify products that have:

• Too many option combinations.
• Options that should really be separate products.
• Separate products that should really be variants.
• Bundles, kits, personalization, engraving, or configurator logic.
• Parent-child relationships that do not translate cleanly.
• Variant-specific images, SKUs, barcodes, prices, or inventory rules.

Do not wait until launch week to find out that your catalog does not fit the new platform cleanly.

SEO is not just a redirect spreadsheet

Redirects matter, but SEO migration planning is bigger than one CSV file.

Before the move, identify your important URLs. That usually includes:

• Top organic landing pages.
• Top revenue pages.
• Popular products and collections.
• Blog posts and buying guides with search traffic.
• Pages with backlinks.
• Pages used in paid ads, emails, affiliates, QR codes, or marketplace content.

Then map each important old URL to the best new Shopify URL. Do not redirect everything to the homepage unless the page truly has no equivalent. That makes the migration easier, but it is not a serious SEO plan.

Also watch for URL pattern changes. Shopify has its own routes for products, collections, pages, and blogs. You may not be able to preserve every old URL exactly, so redirects and internal links need to be part of the launch plan.

Apps should not be copied one-for-one

Do not treat the old app stack as a shopping list.

Some old apps will still be needed. Some can be replaced by Shopify native features. Some should be replaced with better Shopify apps. Some should become custom development because the workflow is specific to the business.

Common areas to audit include:

• Product reviews.
• Subscriptions.
• Loyalty and rewards.
• Returns and exchanges.
• Search, filters, and recommendations.
• Email and SMS.
• Shipping rates, labels, and fulfillment.
• Wholesale or B2B.
• Store locator and dealer tools.
• Analytics, pixels, feeds, and conversion tracking.

The question is not “what app did we use before?” The question is “what business requirement does this app satisfy, and what is the cleanest Shopify way to satisfy it now?”

Checkout, payments, tax, and shipping need their own review

A migration can fail even when the storefront looks perfect if checkout does not match the business.

Review:

• Payment methods and payment gateways.
• Tax settings and tax exemptions.
• Shipping zones, rates, profiles, and carrier rules.
• Local pickup and delivery requirements.
• Gift cards and discount behavior.
• Wholesale payment terms or purchase order workflows.
• Cart or checkout restrictions.
• Order notifications and transactional emails.

This is especially important when the old store had custom checkout logic. Theme code cannot safely solve real checkout rules. If the business needs checkout validation, cart rules, payment customization, or delivery customization, plan the correct Shopify-native or extension-based approach before launch.

Customer and order history may not migrate perfectly

Merchants often assume every old customer and order detail can be moved into Shopify exactly as it exists today. Sometimes that is true enough. Sometimes it is not.

Before promising a perfect migration, separate the data into categories:

• Must migrate: Active customers, active subscriptions, open orders, store credit, gift cards, warranties, B2B accounts, and operationally required history.
• Nice to migrate: Complete historical order records, old addresses, legacy tags, historical discounts, and old marketing segments.
• Should archive instead: Very old records that are useful for compliance or reporting but do not need to live inside Shopify.

There is a difference between migration and historical archiving. For some businesses, the best answer is to migrate the customer-facing and operational data, then preserve older history in a separate reporting or archive system.

Subscriptions, loyalty, reviews, and store credit are their own mini-projects

Some data is more complicated than products and customers.

Subscriptions may involve contracts, billing dates, saved payment methods, delivery schedules, skipped orders, prepaid plans, and cancellation history. Loyalty may involve points balances, VIP tiers, coupons, referrals, and expiration rules. Reviews may involve ratings, images, moderation status, syndication, and schema markup.

These systems usually need their own migration plan. Do not assume a product import app will solve them.

Integrations are usually harder than the theme

For serious ecommerce businesses, the Shopify storefront is only one part of the system.

The migration may also need to connect to:

• ERP systems.
• Accounting platforms.
• Warehouse systems.
• Shipping and label tools.
• OMS platforms.
• PIM systems.
• CRM and support tools.
• Email, SMS, and marketing platforms.
• Analytics, pixels, server-side tracking, and product feeds.

These connections should be tested with real scenarios, not just “the app is installed.” Create test orders, cancel them, refund them, fulfill them, partially fulfill them, and make sure the right systems receive the right data.

The hidden costs of migration

A practical migration rule

Use this order before treating the project like a design build:

1. Audit the current store. Crawl URLs, export products, list apps, document integrations, and identify top pages.
2. Define what must be preserved. Revenue pages, customer data, active subscriptions, inventory rules, fulfillment logic, and SEO-critical URLs come first.
3. Clean up before importing. Fix product structure, duplicate tags, inconsistent SKUs, old collections, and app leftovers before they enter Shopify.
4. Choose native, app, or custom for each requirement. Do not copy old workarounds automatically.
5. Test with a sample. Import a small group of products, customers, collections, and redirects before doing the full migration.
6. QA the business workflow. Test search, filters, cart, checkout, payment, taxes, shipping, order routing, emails, refunds, fulfillment, and reporting.
7. Monitor after launch. Watch redirects, analytics, Search Console, app errors, checkout issues, fulfillment failures, and customer support tickets.

Examples

Moving from WooCommerce

WooCommerce stores often have flexible product structures, plugin-driven checkout behavior, and content-heavy WordPress URLs. The migration plan should include product cleanup, redirect mapping, blog/content decisions, and a plugin-by-plugin replacement review.

Moving from Magento

Magento migrations often involve complex catalogs, customer groups, custom pricing, ERP connections, and backend workflows. The theme may be the visible work, but product data and integrations are usually the real project.

Moving from BigCommerce

BigCommerce stores may have strong catalog and option structures, but the Shopify migration still needs careful review around URLs, apps, product options, checkout rules, and integrations.

Moving from a custom platform

Custom platforms are the hardest to estimate from the outside. The business may rely on invisible custom logic for pricing, inventory, fulfillment, customer groups, or reporting. Document those rules before deciding what Shopify should replace natively and what needs custom development.

Sources and further reading