Shopify Plus · Development
Shopify Plus migration agency
A move to Shopify Plus is a data project, a redirect project and a rebuild of whatever logic used to live in your old checkout. The storefront is the visible part and usually the most straightforward. What decides the outcome is how the catalog is modeled, how history is carried over, how completely URLs are mapped and how the custom rules are rewritten.
What Shopify Plus changes
Platform facts that shape the work
These are true of Shopify Plus today and they decide the approach before any strategy does.
The catalog model is decided first
Shopify represents products through options and variants, with metafields and metaobjects for everything else. Attributes that were database columns on the old platform have to be mapped, and that mapping determines how collections, filtering and search behave afterwards.
Passwords cannot come with you
Customer records, addresses and order history can be imported. Stored passwords cannot, so migrated shoppers set a new one on their first sign in. The launch communications have to explain that before support finds out for you.
Checkout logic is rebuilt, not copied
Custom pricing, shipping rules, payment restrictions and cart validation from the previous stack become Shopify Functions and checkout extensions. That is design work with its own decisions about what to keep and what to simplify.
Every URL changes shape
Shopify's fixed paths mean product, category and content URLs will not match the old ones. A complete redirect map, built from a crawl and from analytics rather than from the sitemap alone, is the difference between holding search traffic and rebuilding it.
Custom features become apps or extensions
Subscriptions, reviews, loyalty, advanced search and merchandising tools that were bespoke code often become apps. Each needs assessing for data ownership, historical import, page weight and whether it will still fit in three years.
The cutover can be scheduled
Scheduled publishing lets theme, price and collection changes go live at a chosen moment and roll back if needed, which turns launch night into a planned sequence rather than a manual scramble across several systems.
The work
Item by item, inside Shopify Plus
Discovery and data mapping
A full inventory of what exists: products and attributes, customers, orders, content, integrations, custom rules and every URL that receives traffic or links. Everything that will not move is identified here rather than during launch week.
Catalog and content modeling
Options, variants, metafields and metaobjects designed against how the store merchandises and filters, with collection logic defined so the categories that earn search traffic exist on the new store from day one.
Redirect map
Old to new mapping for products, categories, filters, content and any legacy paths still receiving links, built from crawl data and search analytics, tested before launch and monitored for the weeks after it.
Custom logic rebuild
Pricing, shipping, payment and validation rules rewritten as Functions, with checkout content moved to supported extension points, and each rule reviewed against whether it still earns its complexity on the new platform.
Theme build and performance
A storefront built on the templates that carry traffic first, with performance budgets applied from the start so the new store does not launch slower than the one it replaced.
Data migration and rehearsal
At least one full rehearsal into a staging store with real data, reconciled record by record on counts and totals, so the production run is a repeat of something that already worked rather than a first attempt.
Cutover and monitoring
A sequenced launch covering DNS, feeds, tags, email platform, payment and fulfillment integrations, then daily monitoring of indexation, redirects, checkout errors and revenue against the pre-launch baseline.
What goes wrong
On Shopify Plus, specifically
- Starting the theme build before the catalog model is settled, which usually means building both twice
- Importing order history without deciding how refunds, taxes and multiple currencies will be represented
- Leaving the redirect map until launch week and building it from the sitemap alone
- Recreating every custom rule from the old platform without asking whether it still pays for itself
- Repointing DNS before feeds, tags, transactional email and fulfillment integrations have been moved
What usually goes wrong in a Shopify Plus migration?
Two things, most often. Incomplete redirects, because the map was built from a sitemap rather than from everything that actually receives traffic and links. And a catalog model chosen late, which forces collections, filtering and search to be rebuilt after the theme is already done.
Can order and customer history be brought across?
Customers, addresses and historical orders can be imported, with limits on how faithfully financial detail such as partial refunds and tax breakdowns can be represented. Decide early whether history needs to be transactional or is only needed for reporting, because that changes the approach.
How do you keep search traffic through a replatform?
Map every URL that has traffic or links, keep page content and internal linking equivalent for the pages that rank, launch the redirects at the same moment as the store, and monitor coverage daily. Expect movement while the new URLs are recrawled, and plan the launch away from your peak season.
Do Shopify Scripts convert automatically to Functions?
No. They are different models and the logic is rewritten. That is a good moment to review which rules are still needed, since most stores accumulate promotional logic that no longer matches how they trade. Rebuilding a shorter list is usually faster and easier to support.
Should the migration and a redesign happen together?
It depends on the risk you can carry. Migrating with a close equivalent of the current design makes problems easy to isolate, then design changes follow with testing. Doing both at once is possible with strong measurement in place, but a drop in revenue becomes much harder to diagnose.
More on Shopify Plus
Grow on Shopify Plus.
A free Growth Analysis ranks what your store should fix first, by revenue at stake.