Shopify Migration for UK Stores: Magento, WooCommerce, BigCommerce and Custom Carts

FactoryJet migrates Magento and Adobe Commerce stores to Shopify and Shopify Plus for UK brands. Other firms that publish a Magento to Shopify service for UK stores include Imaginaire, Chilli Commerce, No7 Software and Agora Studio. Published prices vary with what is included: Big Eye Deers puts a standard Magento migration at £3,000 to £6,000, Chilli Commerce puts a medium-sized store at £15,000 to £35,000, and No7 Software puts a standard catalogue with a theme rebuild at £25,000 to £70,000. We quote a fixed price in writing after a short scoping call.

The platform you are leaving and the amount of rebuilding set the figure. For UK projects, Webdigita publishes £8,000 to £18,500 for a standard WooCommerce to Shopify move under 2,000 SKUs, and £15,000 to £30,000 for a standard Magento 2 move. Big Eye Deers publishes a wider budget of £2,000 to £15,000 across small to complex agency migrations. These are those firms’ own figures, read on 11 October 2026. FactoryJet quotes a fixed price in writing after a short scoping call.

Published UK figures rise with complexity. Webdigita lists £15,000 to £30,000 for a standard Magento 2 store with no custom extensions, £30,000 to £60,000 for Magento with custom extensions and an ERP moving to Shopify Plus, and £60,000 to £150,000 or more for enterprise Adobe Commerce with several stores and B2B. Agora Studio says UK agencies typically quote £15,000 to £60,000. Four things move the figure: the shape of the catalogue, custom extensions, integrations, and how much of the theme is rebuilt.

Because one name covers different amounts of work. On 11 October 2026 we read five UK agencies’ price pages. For a standard Magento move, Big Eye Deers publishes £3,000 to £6,000 and No7 Software publishes £25,000 to £70,000, a gap of about 23 times from the bottom of one to the top of the other. The pages do not all say what is included. No7 Software’s figure names a theme rebuild and core integrations. Ask each bidder to list what is inside the price.

No. Shopify’s help page on importing customers says passwords are encrypted outside Shopify and cannot be migrated from another store with a customer file. Customer records, addresses and marketing choices do move. On Shopify’s current customer accounts nobody needs a password: a customer enters their email address and receives a one-time six-digit code. We plan a short email before launch so customers know how to sign in.

Not on a new store. Multipass was a Shopify Plus feature that let customers who were signed in on another site reach the Shopify store without signing in again. Shopify’s developer documentation, read on 11 October 2026, says Multipass is no longer available to new stores and points new builds to a third-party identity provider. Stores that already use it keep it. A store created for a migration today is a new store.

Yes, but a spreadsheet will not do it. Shopify’s migration guide gives two routes for past orders, a migration app or its Order API, and no CSV option. Its Plus launch checklist recommends importing the past two to five years, and at least every order still inside your returns window. Orders go in after products and customers so each one links to the right records. Turn off new-order emails to staff first, because every imported order sends one.

Yes. Store Migration is Shopify’s own free app, and Shopify’s WooCommerce guide says it can import WooCommerce products but is in early access for certain stores. Shopify’s Plus checklist also names the third-party services LitExtension and Cart2Cart, and the Matrixify app for bulk imports. Apps move data. They do not rebuild a theme, custom rules, integrations or the redirect map, and on a store of any size that is most of the project.

A Shopify migration is the move of an online store from another platform to Shopify. It covers the data (products, customers, past orders, gift cards, blog posts and pages), the shop front design, the rules for pricing and delivery, the connections to payment, courier and accounts systems, and a redirect from every old address to its new one. Shopify’s own guide sets it out as eleven steps, from importing data to setting up the domain and search.

Four things, according to Shopify’s own pages. Customer passwords cannot be imported. Reviews cannot be exported from WooCommerce to Shopify and need a third-party reviews app. Gift cards can be imported but cannot be edited or deleted afterwards, so they move right before launch. Some old addresses cannot be redirected, including any that begin with /shop, /cart, /services or /apps. Custom extension code does not move either: the behaviour is rebuilt on Shopify.

Expect some movement while Google re-reads the site. Google’s guide to moving a site warns of temporary ranking swings, and puts the switch to new addresses at a few weeks or more for a medium-sized site. Shopify’s launch checklist says 301 redirects are needed or old links become dead links. Google also says to keep redirects for at least a year. The redirect map is a named deliverable in our projects, and we check it after launch.

Shopify’s Help Centre says a store can hold up to 100,000 URL redirects, or 20,000,000 on the Shopify Plus plan. Redirects can be created one at a time or imported from a CSV file. A store with a few thousand products sits far inside the lower limit. A large catalogue with years of discontinued products, filtered category addresses and several store views can pass it, so we count the addresses during the audit before recommending a plan.

Shopify will not redirect addresses that begin with /apps, /application, /cart, /carts, /orders, /services or /shop, or its own fixed paths /products, /collections and /collections/all. It also redirects only addresses that are broken, so an old address that still loads a page is ignored. WooCommerce stores using the Shop base permalink setting have every product under /shop/, which falls inside the blocked list and needs a separate plan.

Not as a whole, but older versions are. Adobe’s lifecycle page, last updated 18 September 2026, gives each Adobe Commerce version three years of standard support. Version 2.4.9 is supported until 31 May 2029. Version 2.4.6 left standard support on 11 August 2026, and 2.4.4 and 2.4.5 are past both standard and extended support. Adobe also says it does not fix third-party software such as PHP and MySQL when those reach end of life.

Two show up in every migration. Products: Adobe says each variation of a configurable product is a separate simple product with its own SKU, while Shopify holds one product with up to 2,048 variants across three options. Trade pricing: Magento uses customer groups and tier prices, while Shopify B2B sets each trade customer up as a company. Adobe also supports each version for a fixed window, so the software itself has to be upgraded on a schedule.

That depends on matching every old address to a new one before launch. WooCommerce’s default category addresses use /product-category/ and its product addresses depend on a permalink setting, so the map starts with a crawl of the live site. One setting, Shop base, puts products under /shop/, which Shopify’s redirect tool refuses, so that case needs its own plan. Shopify also says WooCommerce reviews cannot be migrated directly and need a third-party app.

Yes. BigCommerce’s documentation describes price lists that hold prices at variant level and are assigned to customer groups. On Shopify, those trade prices become catalogues attached to companies. Shopify’s Help Centre lists ten platform migration guides and BigCommerce is not among them, so the general guide applies and the mapping is planned by hand. The steps after that are the same as any other move: redirects, theme, rules, connections and testing.

Yes. A custom cart usually has no export tool and no migration app that understands it. Shopify’s guide lists this route as the most technical of its five options: a custom migration built on the Shopify API. We read the old database directly, write scripts that load products, then customers, then orders, and run them against a test store until the counts and samples match the live site.

Start from what the store needs. Shopify’s Help Centre gives two differences that show up in migrations: a Plus store can hold 20,000,000 redirects against 100,000, and the daily cap on uploading new variants once a store passes 500,000 variants does not apply on Plus. Trade selling, checkout changes and several stores are the other usual reasons. Our UK Shopify Plus page covers when Plus is worth it and when standard Shopify is enough.

Sometimes staying is the better call. If your Adobe Commerce version is still inside standard support, your custom logic runs deep and your team knows the platform, a move may cost more than it returns. FactoryJet also builds and supports Magento and WooCommerce stores, so the review covers both answers. The usual reasons to move are a version that has left support and extension upgrades that keep breaking.

HMRC checks your records, whichever platform holds them. GOV.UK says HMRC may check your records to make sure you are paying the right amount of tax, and that VAT records must be kept for at least six years. Shopify says it can charge tax automatically but cannot file or pay it for you. In a migration that means two jobs: set the VAT rules up again on the new store, and keep the old store’s order and invoice records readable.

Tax is configured on the new store, not imported: it is step five of Shopify’s own guide. Shopify’s UK tax page says its Basic Tax service is only available to stores that were collecting UK tax before 13 May 2026, so a store created now uses Shopify Tax or manual tax settings. The same page says a UK business selling to EU countries needs to register for VAT with their tax authorities. Your accountant sets the treatment. We build and test the store against it.

Yes. Shopify’s Help Centre says a store with a UK fulfilment location can buy Royal Mail and DPD labels inside Shopify, at rates from Shopify’s own accounts with those carriers. Royal Mail through Shopify covers UK destinations only, and DPD parcels are dropped off because collections are not offered. Since 1 May 2025, labels from Great Britain to Northern Ireland cannot be bought this way. Stores with their own carrier contracts connect those accounts through a shipping app.

Yes, though both are set up again on the new store. Shopify’s Help Centre lists the United Kingdom among the countries where Klarna can be switched on through Shopify Payments. Clearpay’s UK retailer page shows Shopify among the e-commerce platforms it connects to. Neither connection copies over from Magento or WooCommerce, so each is added to the new checkout and tested with a real order and a refund before launch.

Only once the link is rebuilt, because the old connector belongs to the old platform. Xero publishes its own Shopify integration, which it says syncs sales, payouts, fees and taxes into Xero. For Sage, the audit records how orders, refunds and payouts arrive today so the same figures keep arriving. GOV.UK’s VAT rules say software holding digital records must be linked digitally, so retyping or copying figures across is not an option.

A FactoryJet store build that includes a migration takes 5 to 8 weeks, and a headless or custom build takes 8 to 14 weeks. Published UK timelines vary: Chilli Commerce gives 6 to 12 weeks for most medium-sized stores, Webdigita gives 8 to 16 weeks for a standard WooCommerce move, and Agora Studio says UK agencies typically take 3 to 6 months for Magento. Custom integrations, the shape of the catalogue and internal sign-off are what stretch a timeline.

The new store is built and tested beside the live one, so the old store keeps trading until the switch. The switch itself is a domain change. Shopify’s launch checklist advises lowering the domain’s TTL to 300 about a week before, so the change spreads quickly, and suggests turning off checkout on the old store while it spreads so no order lands in the wrong place. We pick a quiet trading hour for it.

Yes. We show working software on your own data before a contract. Ask for it on the scoping call. Clicking through your own products and categories in a test store is a better basis for choosing an agency than a slide deck, and it is a fair thing to ask of every firm you are comparing.

You do. You own the Shopify store, the theme code and every login for the store and the systems connected to it. Your data stays in your own accounts, and FactoryJet works inside them at your invitation. If you ever change agency, nothing has to be handed back, because nothing was held.

Yes. FactoryJet designs, builds, implements and supports, and the support is quoted the same way as the build: a fixed price in writing after a short scoping call. After a migration that covers fixes and changes to the theme, watching the redirects and connections through the first weeks, and new features as the store grows.