Migrating from BigCommerce or Magento to Shopify — a practical guide

Re-platforming an online store is one of the more nerve-wracking projects an eCommerce business can take on — the store is the revenue, and a migration touches all of it. Moving from BigCommerce or Magento to Shopify is a common version of that project, and it is very doable. This is a practical guide to why stores make the move, what it actually involves, the three risks that matter, and how a careful migration keeps every one of them under control.

The short version: stores move to Shopify mainly to spend less effort running the platform and more effort selling on it. The migration is a real project with real risk — to your search rankings, your data, and your uptime — but each of those risks is well understood and manageable when the move is staged properly. The mistake is treating a re-platform as a simple export and import. It is not; it is a planned project.

Why stores move to Shopify

The reason is rarely that the old platform cannot function. It is that running it has become a tax on the business. Shopify is a hosted platform: it takes care of hosting, security, performance, and platform updates, so the team’s attention goes to merchandising, marketing, and growth rather than to keeping the infrastructure alive. For a store whose advantage is how well it sells — which is most stores — that shift in where the effort goes is the whole appeal.

Shopify also brings a deep, genuinely well-built ecosystem: a large catalogue of apps, a strong checkout, payment handling, and a platform that scales without the store team having to think about it. None of that is unique to Shopify in principle, but the combination of low operational weight and high commercial capability is what pulls stores across.

BigCommerce and Magento — two different starting points

It is worth separating the two, because a migration from each feels different. BigCommerce is, like Shopify, a hosted platform, so a move between them is a platform-to-platform migration of a broadly similar shape — the reasons are usually about fit, ecosystem, and where the team wants to spend its energy, rather than escaping operational pain.

Magento is a different situation. Magento is powerful and highly customisable, but it is heavy: it needs real engineering to run well, real infrastructure underneath it, and ongoing attention to stay fast and secure. Many stores on Magento are there because they once needed that power and now find they are paying for complexity they no longer use. For them, moving to Shopify is as much about shedding operational weight as it is about features.

What a store migration actually involves

A re-platform is not one task; it is several, and naming them removes most of the fear. Products and their variants, images, and categories have to come across, structured cleanly. Customer accounts move with their history intact. Past orders are migrated so the store’s records stay whole. The storefront design is rebuilt on Shopify — usually an upgrade on the original, not a copy. The app and integration stack — payments, shipping, email, analytics, anything custom — is rebuilt with Shopify equivalents. And every URL is mapped so search traffic is preserved.

That is a real list, but it is a finite and well-trodden one. None of it is guesswork. The work is in doing each part carefully and verifying it — not in discovering what the parts are.

It is also worth being clear about what a migration is not: it is not a fresh start that throws away the store’s history. The products you have refined over years, the customer accounts you have earned, the order record that is the store’s memory — all of it comes across. A re-platform changes the foundation the store runs on; it does not ask you to give up what the store has already become. That distinction matters, because the anxiety around re-platforming often comes from imagining a far more destructive process than a careful migration actually is. Nothing of value is discarded — the store is the same store, on a foundation that is lighter to run.

The three risks that actually matter

Almost everything that can go wrong in a store migration falls into three categories. The first is SEO: if URLs change without redirects, the store can lose the search rankings it depends on. The second is data: products, customers, and orders are the store’s memory, and a careless migration can corrupt, duplicate, or lose them. The third is downtime: a store that goes dark during the switch is a store losing sales by the minute.

Naming the three is the first step to controlling them, because each has a known answer. SEO is protected by mapping and redirecting every URL. Data is protected by migrating it carefully, in stages, and verifying it against the source. Downtime is protected by building and testing the new store fully before any switch, and cutting over in a planned, low-risk window. A good migration is, in essence, the disciplined management of these three.

How a safe migration is staged

The safe approach is never a single dramatic switch. The new Shopify store is built and configured in full while the existing store keeps trading. Data is migrated and then checked — product counts, customer records, and order history verified against the original. The storefront and the app stack are tested end to end, including real test purchases through checkout. The URL redirect map is prepared in advance.

Only when all of that is proven does the cutover happen, in a planned window, with the redirects going live at the same moment. Because everything was built and verified beforehand, the switch itself is quick and low-drama — the opposite of a tense, all-or-nothing launch. The store moves; customers barely notice.

When BigCommerce or Magento is still the right home

Shopify is not the universal answer, and an honest guide has to say so. A store with deep, genuinely necessary customisation that depends on Magento’s flexibility may be right where it is — the cost of re-platforming would not buy enough back. A store running well on BigCommerce with no real friction has no urgent reason to move. And a store mid-way through a big growth push might sensibly wait for a calmer moment, since a migration deserves real attention.

The test is the same as for any re-platform: move when the current platform is genuinely costing you — in operational effort, in capability, in cost — and not simply because another platform is popular. If BigCommerce or Magento is serving the business well, staying is a perfectly good decision.

What to improve while you are migrating

A re-platform is a big enough project to be worth doing once and doing well, and that makes it a natural moment to fix things rather than faithfully copy them across. The storefront is rebuilt on Shopify anyway, so it is the obvious time to improve the parts that were never quite right — the product pages, the path to checkout, the mobile experience, the page speed. The app stack is being rebuilt too, which is the moment to drop the apps that accumulated over the years and were never really needed, and to consolidate what remains into a leaner, cheaper set.

The discipline here is to keep the improvements deliberate and scoped. A migration that also tries to be a complete redesign and a full feature expansion all at once becomes hard to test and hard to land safely. The sensible approach is to migrate faithfully, improve the specific things that clearly need it, and leave the larger ambitions for after the store is safely on its new platform.

A short checklist before you commit

Before starting a re-platform, a few questions are worth answering honestly. Is the current platform genuinely costing you — in operational effort, in capability, in cost — or is the urge to move really just that Shopify is popular? Do you have a clear picture of your catalogue size, your integration stack, and the customisations the store depends on? Have you identified the pages and URLs that earn the store its search traffic, so they can be protected? And is the timing sensible — well clear of your peak trading season?

If the platform is genuinely costing you and the rest of the answers are clear, a re-platform is a sound, well-understood project. If the current platform is serving the store well and the honest answer to the first question is no, the right call may simply be to wait.

The honest path

For most stores that have outgrown the effort of running BigCommerce or, especially, Magento, Shopify is a strong destination — it trades operational weight for commercial focus. But the move is a project, not a button. Treat it as the careful, staged migration of products, customers, orders, design, apps, and URLs that it actually is; protect the three risks deliberately; build and verify the new store before you switch. Done that way, a re-platform is a calm, planned change — and the store comes out the other side lighter to run and ready to grow.

Common questions