What actually goes wrong
The store launches fine. The traffic does not come back.
Replatforming failures are rarely visible on launch day, which is what makes them expensive. Three of them account for nearly all the damage, and all three are decided before anyone touches a theme.
The redirects nobody mapped
Every platform builds URLs differently, so a migration changes the address of every product and every category by default. If those old addresses return a 404, the ranking, the accumulated links and the traffic attached to them are gone — and unlike most launch problems, this one does not recover on its own once someone notices. The fix is a complete map from every old URL to its closest new equivalent, produced from a crawl of the existing store rather than from a spreadsheet somebody typed.
The data that quietly does not fit
Products carry the parts that break: variants, option sets, bundles, subscriptions, tiered or customer-specific pricing, and B2B rules. Shopify models some of these differently and a couple not at all below Plus. Discovering that in week three means redesigning your catalogue under deadline. It is knowable in an afternoon by reading an export of what you actually have, which is why that is the first thing we ask for.
The order history that gets left behind
Customers, order history and — where it exists — subscription billing are the ones that get deferred and then abandoned. The consequence is a support team that has to look up anything older than launch day in a system nobody maintains, and repeat customers who arrive to find their account empty. Decide deliberately what comes across and what is archived. Do not let it be decided by the calendar.
How we run a replatform
The order matters more than the tooling, and it is close to the same order every time.
Read what you have before quoting
A crawl of the live store and an export of the catalogue. That produces two things: the complete URL inventory the redirect map will be built from, and an honest read on which of your product structures Shopify expresses natively, which need rethinking and which need an app. Anyone quoting Shopify migration services USA or UK merchants ask for without doing this first is quoting a guess, and the guess is always lower than the number.
Build alongside the live store
Your existing shop keeps trading throughout. The new one is assembled on a development store you can open at any point, catalogue imported and checked against the export rather than eyeballed, templates built, and the redirect map produced as a reviewable document rather than a config file nobody reads.
Launch, then watch the right numbers
Cut over, redirects live from the first minute, then watch Search Console for crawl errors and coverage rather than watching the sales dashboard and hoping. A migration that has gone wrong shows up in crawl errors days before it shows up in revenue, which is the window in which it is still cheap to fix.
The market-specific part, which is small
The engineering is identical on both sides of the Atlantic. What differs is presentational and settled in configuration: prices displayed inclusive of tax for British shoppers and exclusive for American ones, the delivery and returns language each market expects, and the payment methods people recognise. Worth naming at scoping so nobody assumes the other market's defaults, and genuinely not worth a separate project.
Platform work
Stores we have built on both sides of a migration.
How it runs
Crawl, quote, build, cut over.
Free migration teardown
We crawl your store and read your catalogue export, then tell you what will and will not move cleanly.
Scope and fixed price
The URL count, the product structures that need rethinking, and the redirect map as a named deliverable.
Build on a development store
Your live shop keeps trading. Catalogue imported and reconciled against the export, not spot-checked.
Cut over and watch
Redirects live from minute one, then Search Console coverage monitored through the weeks that matter.
Money
How a migration is quoted.
Fixed-scope migration
Quoted after the crawl, never before. Catalogue, customers, orders, templates and the redirect map, with what is being archived stated explicitly.
- ✓Redirect map as a deliverable
- ✓Reconciled against your export
- ✓Live store keeps trading
Redirects only
For merchants who have already migrated and lost traffic. We reconstruct the old URL inventory and build the map that should have existed.
- ✓Recovers what is recoverable
- ✓Fixed scope
- ✓Honest about what is not
Migration teardown
Free, written, 48 hours. What moves cleanly, what does not, and the realistic size of the job. Yours to take to another agency.
- ✓No cost
- ✓Based on a real crawl
- ✓Yours to keep
No figures on this site, in any currency. A migration price is driven by URL count and how unusual your product structures are, and both are knowable only from the crawl — which is free, and which you keep regardless of who does the work.
FAQ
Straight answers.
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