Shopify Replatform for a European Enterprise Fashion Retailer

  • Services:
  • Industries: Fashion retail
  • Engagement: Replatform
  • Timeline: Q1-Q2 2024

About the project

A European enterprise fashion retailer had outgrown the custom-built storefront it launched on a decade earlier. Checkout failures were climbing, page load times averaged over four seconds on mobile, and the internal team was spending most sprint capacity on platform maintenance rather than commercial work. This shopify replatform example shows how we moved the full catalogue and checkout to Shopify, rebuilt the front end in Hydrogen with a headless React layer, and delivered a working store in under 12 weeks. LCP dropped from 4.2s to 1.5s and the team shipped its first post-launch campaign without a single engineering ticket.

Background

The retailer carried a catalogue of several thousand SKUs across seasonal and permanent lines, with localised pricing for four European markets. The existing platform had no API layer, which meant every integration: email, loyalty, returns, sat on brittle webhooks. The engineering constraint was a hard deadline tied to the spring collection launch. Any delay would cost the retailer its primary commercial window. We had to migrate live product data, redirect several hundred category URLs, and keep the existing checkout operational in parallel until the cutover was confirmed clean.

Planning a move to Shopify?
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We scope and deliver ecommerce replatforms for retailers with complex catalogues and tight launch windows.

What we built

A complete shopify replatform example: catalogue migration, Hydrogen front end, multi-market pricing, and a zero-downtime cutover.

Catalogue migration pipeline Icon

Catalogue migration pipeline

A Node.js script transformed thousands of SKUs, variant combinations, and localised pricing records into Shopify-native imports. Metafields carried fit-guide and care data that had no standard Shopify field, preserving content the merchandising team relied on.

Hydrogen front end Icon

Hydrogen front end

The storefront was rebuilt in Shopify Hydrogen using React. Components were scoped to match the retailer's design system: product cards, filters, and a streamlined checkout that removed four steps from the previous flow. Page weight dropped by about 45% compared to the old template stack.

Multi-market localisation Icon

Multi-market localisation

Shopify Markets handled four European price lists and currency display. The previous platform maintained market logic in custom database tables. Moving it to Shopify Markets eliminated a class of pricing bugs that had required manual correction before every major promotion.

URL redirect coverage Icon

URL redirect coverage

Over 400 category and product URLs from the old platform were mapped to their Shopify equivalents and loaded as native redirects before cutover. Organic rankings held through the transition period, with no material traffic loss observed in the first four weeks post-launch.

Takeaway

This shopify replatform example shows that the riskiest part of a platform move is rarely the front end. Catalogue fidelity, URL continuity, and multi-market pricing logic are where migrations stall or lose search equity. Running the old and new platforms in parallel with automated smoke tests across every category and checkout flow is what makes a clean cutover possible on a fixed commercial deadline. If your team is carrying a legacy storefront into a peak trading season, the earlier you start the migration pipeline the more margin you have to absorb the surprises.

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