Industry solution
Shopify migration for clothing retailers
Clothing stores that have traded for several seasons carry a particular kind of history: size labels that changed between suppliers, colour names that drifted, and archives of sold-out ranges with pages that still receive visits.
We migrate clothing retailers to Shopify with that history cleaned up rather than copied, so filters work, sizes are consistent and old seasonal pages still lead somewhere useful.
Illustrative diagram
Normalising sizes and colours
Over several seasons, the same size can be written many ways: S, Small, SM, UK 8. Colours drift too: Navy, Navy Blue, Dark Navy. On the old platform these inconsistencies were tolerated; in Shopify they produce cluttered filters and confusing size pickers.
A clothing migration is the right moment to agree one spelling for each size and colour and to map every old value to it. The mapping is applied to the export before import, so every product arrives consistent.
What to do with past seasons
Migrate as archived products
Suits you when
- Old styles still receive visits from search
- Customers reorder favourites
- You may restock
Watch out for
- Archived products should not appear in collections
- Images still need migrating
Redirect and retire
Suits you when
- Styles will never return
- Pages receive little traffic
Watch out for
- Redirect each old product to its nearest category
- Keep the data in your exports
Clothing-specific migration checks
| Check | Why |
|---|---|
| Size order in the picker | Sizes should run small to large, not alphabetically |
| Image per colour variant | Selecting a colour should change the photos |
| Products with size, colour, length and fit | Four choices exceed Shopify's three options and need restructuring |
| Size guide links | Old size guide pages must be migrated and linked |
| Variant counts | Large ranges multiply variants; counts must match the export |
Exchanges and returns history
Clothing retailers handle more exchanges than most. Recent orders, especially those still inside the returns window, should be available in Shopify so staff can process returns after launch. Older history can often stay in exports.
We plan the cut-over date with the returns window in mind and make sure staff know how to handle a return for an order placed on the old platform.
Before migrating a clothing store
Data
- List every size and colour value used
- Agree the standard spelling for each
- Mark which past-season products to keep
Content
- Size guides and fit notes
- Lookbooks or campaign pages worth keeping
- Returns and exchange policy
Rebuilding seasonal collections
Clothing stores often have dozens of seasonal and promotional categories that made sense at the time: summer edits, capsule collections, past sales. Migrating all of them clutters Shopify and creates collections that point to sold-out products.
We review categories with you and rebuild only those that still serve shoppers, ideally as rule-based collections driven by tags such as season or product type. Old category addresses that are retired are redirected to their nearest current collection, so links from past campaigns still lead somewhere sensible.
A clothing migration sequence
Normalise
Agree standard sizes, colours and product types.
Output: Value mapping
Decide archives
Choose which past seasons migrate and which redirect.
Output: Archive plan
Import and check
Products, customers and recent orders imported; size order and colour images checked.
Output: Verified catalogue
Switch
Collections, redirects and domain in place before launch.
Output: Live store
Questions about Shopify migration for clothing retailers
Why do my size filters show duplicates?
Usually because the same size is spelled differently on different products. Normalising sizes during migration fixes this across the catalogue.
Should I migrate sold-out seasons?
Migrate styles that still receive visits or may return, as archived products. Redirect the rest to their category.
What if a style has more than three options?
It is restructured, for example by moving length or fit into separate linked products.
Can colour images be assigned during import?
Yes. Variant images can be set in the product import so each colour shows its own photos.
How are returns handled for orders placed before the move?
Recent orders can be imported so staff can process returns in Shopify. We plan the cut-over around your returns window.
Will my size guides come across?
Yes. They are migrated as pages and linked from product pages in the new theme.
Can customer wish lists be migrated?
Wish lists usually belong to an app on the old platform. Whether they can move depends on that app and the Shopify app you choose.
How much order history should a clothing store migrate?
At least orders still within your returns window. Older history is useful for customer service but can often stay in exports.
Will my lookbook pages move?
Lookbooks are rebuilt as pages or blog posts with theme sections, and their old addresses redirected.
Do product types need standardising too?
Yes. Consistent product types such as dresses or knitwear make rule-based collections and filters reliable after migration.
Sources referenced
Platform features, guidance and rules change. We check the current versions before committing to an approach. This page is general information, not legal advice.
- Shopify Help Center: Using CSV files to import and export products (opens in a new tab) — reviewed 2026-10-22
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