Migration & integrations
Replatforming
Replatforming is moving a store from one ecommerce platform to another — Magento or WooCommerce to Shopify, most often. It is not a design project: the risk sits in data integrity, URL continuity, and integrations, and the failure mode is a launch that quietly loses a third of organic traffic. A safe replatform is planned around a redirect map and a staging store, not a launch date.
Why it matters
The failure mode of a replatform is specific and it is not visual. The new store looks better, functions correctly, and loses a third of its organic traffic in the first month — because URLs changed, redirects were incomplete, and years of accumulated ranking signals went to 404 pages.
That loss is recoverable in principle and expensive in practice. Rankings rebuilt from scratch take months, during which the business pays for traffic it used to get free, and the replatform that was supposed to increase revenue becomes the reason revenue fell.
The second failure mode is operational. Integrations that worked on the old platform — the ERP, the 3PL, the accounting sync — each need rebuilding, and discovering that during launch week is how a launch slips a quarter.
Both are avoidable, and neither is avoided by spending more on design.
How it works on Shopify
A safe replatform is planned around three artefacts rather than a launch date.
The redirect map is the most important. Every URL on the old site mapped to its equivalent on the new one, as 301s, validated before launch. Shopify's URL structure is fixed and differs from most platforms, so this is always needed and always larger than expected.
The data migration plan covers products, variants, collections, customers, orders, and content — with the known constraint that customer passwords cannot transfer, so a reset communication has to be planned.
The staging store is where both are rehearsed. Import, build, integrate, and validate there, then do it again for real.
Around those, an integration inventory: every system currently talking to the old platform, what it does, and how it will be rebuilt.
Launch itself should be scheduled away from the commercial peak, with the redirect map deployed at cutover and Search Console watched daily afterwards.
Common mistakes
- Treating it as a design project. The risk is data, URLs, and integrations. Design is the visible part, not the hard part.
- Incomplete redirects. Mapping products and forgetting blog posts, filtered pages, and legacy campaign URLs.
- No staging rehearsal. The first import always reveals something. Better that it is not the live one.
- Launching before peak. A migration in November is a decision to debug during the busiest month.
- Forgetting historical orders. Needed for returns, LTV, and customer service, and awkward to backfill later.
- No rollback plan. Rare to need and unpleasant to improvise.
When you need help
Replatforming is the case where outside experience is most clearly worth buying, because the failure modes are known in advance and almost never discovered by a team doing it for the first time.
The specific work is the redirect map, the data migration plan, and the integration inventory — the three artefacts that decide whether the launch is uneventful. The theme build is the visible deliverable; these are the ones that determine whether the business still has its traffic in month two.
Need this done on your store?
Shopify migrationRelated terms
- Redirect mappingRedirect mapping is the URL-by-URL plan that sends every address on the old site to its equivalent on the new one, using 301 (permanent) redirects. It is the single most important SEO deliverable of a replatform: 301s pass ranking signals to the new URL, while an unmapped page becomes a 404 and loses them entirely. Shopify's fixed URL structure means most migrations need one.
- Data migrationData migration is transferring products, variants, collections, customers, orders, and content from the old platform into Shopify. Products are the easy part; the traps are variant models that do not map, historical orders needed for LTV and returns, and customer passwords, which cannot be migrated — customers must reset them. Every migration should be run twice: once into staging, once for real.
- Staging storeA staging store is a non-public Shopify store used to build and rehearse a migration before it goes live. It is where the data import is tested, the theme is built, integrations are wired, and the redirect map is validated — password-protected, so search engines never see it. Launching without one means testing in production.