Shopify Migration Lessons from Millions of Records
What actually breaks in an enterprise replatform — data modelling, redirects, reconciliation, and the rollout plan that keeps revenue flowing.
Enterprise replatforming is rarely a technology problem. The platform choice is usually settled in a week; the next six months are about data, edge cases, and the operational habits a business has built around its old system.
Start with the data model, not the theme. Map every entity — customers, orders, subscriptions, product variants, metafields, content — and decide which ones migrate, which get archived, and which get rebuilt. The entities you archive are the ones that save you months.
Reconciliation is non-negotiable. Every migration batch should produce counts and checksums on both sides. If you cannot prove the numbers match, you have not migrated the data — you have copied some of it.
Redirects decide whether you keep your organic traffic. Crawl the old site, group URLs by template, and build rules rather than one-off entries. Then test the top 500 URLs by revenue before cutover, not after.
Finally, phase the rollout. A regional or brand-by-brand cutover gives you a real production rehearsal with a small blast radius, and it is the single biggest reason a migration lands with zero downtime.