D2C apparel ecommerce · Montreal, QC · ships across Canada and US · 5 months (3-month build + 60-day post-launch monitoring)

Head of Ecommerce, Canadian D2C apparel brand (~C$2M–C$8M GMV range)

A Montreal-based D2C apparel brand was migrating from a custom Magento 1 setup to Shopify Plus and was terrified of the standard "replatform traffic cliff" they'd seen peers experience. We ran a 5-month migration with a zero-loss redirect program, schema parity, and a 60-day post-launch monitoring sprint.

Editorial note: Anonymized per our editorial policy. No fabricated client names or quotes. All metrics are directional and qualified with attribution; client-reported figures are labelled.

Service & engagement

Service
Shopify replatform with zero-traffic-loss SEO program
Engagement length
5 months (3-month build + 60-day post-launch monitoring)

The challenge

Most Magento → Shopify replatforms in our experience lose 25–50% of organic traffic in the first 60 days post-launch — usually because of broken redirect mapping, lost canonical structure, or schema regression. The client had 1,400+ indexable URLs (products, collections, blog), an estimated C$40K/month in organic-sourced revenue, and a strict launch deadline tied to a Black Friday campaign. The previous attempted replatform 14 months earlier had been aborted at staging because of redirect-mapping concerns.

Approach

  1. 1
    Built a 1:1 redirect map for 1,400+ URLs in weeks 1–3, hand-validated against the existing canonical structure. Every product, collection, blog post, and legacy URL had a destination.
  2. 2
    Audited and ported all on-page SEO elements — title tags, meta descriptions, H1s, image alt text, internal linking patterns — into the new Shopify theme structure with no regressions.
  3. 3
    Implemented complete Product + Offer + AggregateRating + Review schema parity on launch day, validated against the pre-launch Magento baseline in Rich Results Test.
  4. 4
    Launched on a Tuesday at 02:00 ET (low-traffic window). Submitted updated sitemap to GSC within 6 hours. Monitored 24/7 for 72 hours post-launch with a written rollback plan ready.
  5. 5
    Ran a 60-day post-launch monitoring sprint: daily indexation checks for the first 14 days, weekly thereafter. Caught and fixed 11 long-tail redirect issues within 48 hours of detection.

Outcomes

approx. -3% net (within seasonal noise)
Organic sessions (60-day post-launch vs 60-day pre-launch)
GA4, like-for-like comparison
1,400 → 1,438
Indexed URLs in GSC (60 days post-launch)
94% of original URLs retained + new product pages indexed
approx. flat to +4%
Organic-sourced revenue (60-day post-launch vs 60-day pre-launch)
client-reported, GA4 + Shopify attribution
approx. +12% vs prior year
Black Friday week organic-sourced revenue
client-reported; campaign would have failed at -25% traffic loss

Reflection

A clean replatform isn't a heroic act — it's a checklist done with discipline. The redirect map is the single highest-leverage artifact. Every replatform that loses material traffic in our experience either (a) generated the redirect map automatically without manual validation, (b) shipped without schema parity, or (c) launched on a Friday afternoon. Schedule the launch in a low-traffic window, validate the redirect map by hand, and budget for a 60-day post-launch monitoring sprint — and the cliff doesn't happen.

MigrationShopifyEcommerceReplatformQuebec

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