Shopify Migration & Replatforming
Move to Shopify without losing the parts of the business that already work.
Autonomous Technologies runs Shopify migrations as a controlled move of data, URL redirects, integrations and operating rules, with acceptance tests agreed before cutover. A migration is not a theme swap.
When migration is the right move
Platform limits, a fragmented operating stack, unreliable data, B2B requirements, multi-market expansion or a storefront that cannot be improved safely can justify migration. A cosmetic redesign on top of those constraints usually postpones the work rather than removing it.
A migration can fail far beyond the theme.
The move has to protect the customer experience and the operation behind it.
Search equity disappears
Useful URLs change without a complete redirect and validation plan.
Business data loses meaning
Products, variants, customers and order history arrive without the mappings teams depend on.
Integrations break at cutover
ERP, 3PL, CRM, payment and tracking handoffs are treated as after-launch work.
The team inherits an undocumented store
A launch date exists, but ownership, acceptance checks and recovery paths do not.
Every part moves with its own source, owner and acceptance test.
We plan the storefront, data, search and operating system as one controlled transition.
Catalogue and customer data
Products, variants, customers and agreed order history are mapped and validated before cutover.
Content and URL equity
Pages, collections, metadata and redirects preserve the useful paths that already earn demand.
Apps and integrations
System connections are rebuilt and tested around product, order and fulfilment state.
Tracking and measurement
Analytics, tags and events are checked for parity so reporting remains interpretable after launch.
Commercial rules
Pricing, discounting, account and market rules are documented and accepted before go-live.
Operating runbooks
Your team receives the access, workflows and records needed to operate the new store.
A controlled sequence, not a big-bang swap.
Each phase has evidence, an owner and a review point.
- 01
Inventory and discovery
Map the current data, systems, URLs and operating knowledge.
- 02
Data and URL mapping
Decide what moves, where it lands and how every important URL resolves.
- 03
Test migration
Prove the migration on a copy before customer-facing systems change.
- 04
Build and parity QA
Rebuild the experience and verify it against the agreed source state.
- 05
Cutover and hypercare
Launch in an agreed window, monitor the live system and resolve verified issues.
Acceptance evidence replaces migration theatre.
We keep test orders, redirect maps, tracking checks and a written acceptance list so you can see what moved and what was verified. The worksheet we publish for readers, the Shopify migration acceptance checklist (CSV), sets out the checks a migration has to pass before cutover, with the pass condition left for your business to set. The acceptance matrix behind it is explained in the Shopify migration checklist guide. Named migration case studies are added here as clients approve their use.
What changes scope and cost
Two Shopify migrations with the same product count can be very different projects. These are the factors that move the scope, and the ones we ask about first.
- Catalogue size and variant complexity. Option structures, identifiers, media, metafields and channel availability decide how much mapping and clean-up the catalogue needs.
- Customer and order history depth. How much history moves into Shopify, what stays accessible elsewhere, and which privacy rules apply to the records that move.
- Custom logic and apps. Pricing rules, discounting, bundles, subscriptions and anything that was built rather than configured.
- Integrations. Every ERP, PIM, OMS, WMS, 3PL, CRM, tax and shipping connection that has to keep working through cutover.
- URL and redirect volume. How many useful URLs exist, how many change shape, and how much crawl validation the move needs afterwards.
- B2B rules. Company accounts, price lists, payment terms and approval flows behave differently from a DTC catalogue.
- Multiple stores or markets. Currencies, languages, tax treatment and market-specific catalogues expand the build and the testing behind it.
We do not estimate from a product count. Discovery, source-system access and data profiling come first, and the scope is written down before delivery starts.
How to assess any Shopify migration partner, including us
Six questions that separate a documented migration from a hopeful one. Ask every vendor on your shortlist the same six.
A written data plan before cutover
Ask for a document that names every source system and every record type that moves, with the fields, transformations and exceptions set out. Ask to see it before work starts, not at handover.
Redirects tested after cutover
Ask how redirects are validated after cutover: response checks across the URL map, then crawl and indexation monitoring. Ask to see the results of both.
One order traced across every system
Ask whether a single order is traced end to end through ERP, 3PL and CRM before go-live, or only inside Shopify. The handoffs between systems are the part a Shopify-only test never covers.
A rehearsal, not a big-bang swap
Ask whether the migration is rehearsed on a copy and what the rehearsal is timed against. A single live attempt with no measured rehearsal is a plan with no fallback position.
Acceptance evidence you can read
Ask what you are handed at sign-off: test orders, a redirect map, tracking checks and a written acceptance list. Ask what counts as the pass condition, and who signs it.
A named decision owner and a go or no-go gate
Ask who can stop cutover and on what conditions. If the migration proceeds by default once it has started, the go or no-go gate does not exist.
The migration method, published
The way we run a migration is published. Read it before you shortlist anyone.
- Shopify migration checklist: the acceptance tests that decide go or no-go sets out the acceptance matrix, the data and redirect plan and the launch decision record, with the acceptance worksheet (CSV).
- Porting Shopify Plus Scripts to Functions applies when discounting or checkout logic moves with you, which changes the testing more than the build.
Protect the work around the storefront
We plan redirects, tracking parity, test orders, access ownership, SEO handover and ERP, 3PL and CRM workflows alongside the new customer experience. The goal is a launch that the business can operate on day one.
Common questions
How long does a Shopify migration take?
The schedule comes from the data clean-up, integrations, customer journeys and launch checks your store actually requires, so before discovery the honest answer is that set of factors rather than a number. The way to reach a real cutover window is to time a representative rehearsal, estimate from it, and agree a recovery position for a blocking check before the window is set. Product count alone does not describe the work.
What happens to our SEO rankings during a Shopify migration?
We inventory the URLs that already earn traffic, map each one to a destination, implement the redirects, then validate them: response checks across the URL map, followed by crawl, indexation and metadata checks after cutover. Redirects help people and search engines reach replacement pages. No migration can guarantee unchanged rankings or traffic.
Can historical customer and order data move with us?
Usually, within the limits of the source platform, your privacy obligations and the history your team genuinely needs. We agree the mapping, the reconciliation rule and what stays accessible elsewhere before any data moves. Customer passwords do not transfer with customer records, so the sign-in journey has to be confirmed against your chosen Shopify customer-account setup, tested, and communicated to customers as its own task.
What do you need from our team before starting?
A decision owner who can stop cutover, access to the source systems, named data owners for the records that move, an agreed approval cadence, and a clear statement of what cannot be interrupted during the cutover window.
Shopify Development & Design
New builds, redesigns and rebuilds shaped around how your business sells.
Tell us what is changing, what must be preserved and where the current platform is getting in the way.
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