E-commerce Re-platforming & Migration
Change the platform. Keep the rankings, the data, and the revenue.
Start a projectReplatforming is the highest-risk project an e-commerce brand can run. The store that pays your bills has to move from one system to another, and the failure modes are expensive and quiet: rankings that slide because redirects were sloppy, product data that arrives incomplete, a checkout that breaks for a segment of customers you don’t notice until revenue dips. Most brands replatform because the current platform is holding them back — and then spend the next quarter recovering traffic they shouldn’t have lost. The migration was treated as a one-time technical event instead of a transition that has to protect SEO and sales the whole way through.
Metrix Digital is an e-commerce replatforming agency in Los Angeles that builds the migration and runs the aftermath. We crawl the existing site and map a 301 redirect for every indexed URL before anything moves. We migrate products, customers, and order history and reconcile them record-for-record against the source. We stage the full storefront, run real test orders, and confirm analytics and ad pixels fire before the cutover. Then — and this is the part that’s usually missing — we stay through the volatile weeks after launch, watching rankings, crawl errors, and revenue daily and fixing regressions while they’re still small.
That continuity is the difference. We’re a full-service agency, so the SEO, engineering, design, and operations work sits under one accountable team instead of being split across vendors who each blame the next one when traffic drops. AI handles the heavy lifting — crawling thousands of URLs, diffing catalog exports, flagging anomalies at a cadence no person could match — while our team owns the judgment calls about what carries over, what gets fixed, and what gets left behind. You change the platform. You keep the rankings, the data, and the revenue.
The right platform, then the build.
Migrate to Shopify / Shopify Plus
Move off Magento, WooCommerce, or a legacy custom build onto Shopify or Shopify Plus — themes, apps, and checkout rebuilt to match how you actually sell.
Migrate to BigCommerce
Replatform to BigCommerce when you need open APIs and B2B catalog logic without a full enterprise build. We map every product, price list, and customer group across.
Migrate off Magento / Adobe Commerce
Leave the maintenance burden of Magento behind. We preserve URL structure, category trees, and order history so the move is invisible to Google and to your customers.
SEO Migration & 301 Redirect Mapping
A redirect map for every indexed URL, a crawl-parity check before and after, and rank tracking through the cutover. This is where most migrations lose traffic. We don't.
Catalog & Customer Data Migration
Products, variants, images, customer accounts, order history, reviews. Migrated, reconciled record-for-record, and validated against the source before launch.
Built and run, end to end.
SEO-safe cutover
The fastest way to lose money in a migration is to lose rankings. We crawl the old site, build a 301 redirect map for every indexed URL, preserve title tags and metadata, and keep the category and URL structure intact wherever it earns traffic. Rankings are tracked daily through the switch, not checked once after.
Zero-loss data migration
Products, variants, images, pricing, customer accounts, order history, and reviews move across and get reconciled record-for-record against the source. Nothing is assumed migrated until it's validated. You launch knowing the new store holds everything the old one did.
Revenue protection through the switch
Migrations fail quietly — a broken checkout, a dropped tracking pixel, a payment gateway that didn't carry over. We stage the full store, run real test orders end to end, verify analytics and ad pixels fire, and keep the cutover window tight so live sales never go dark.
Theme and storefront rebuild
A replatform is a chance to fix what the old theme couldn't. We rebuild the storefront on the new platform around how your customers actually buy — product pages, collections, search, and checkout — instead of porting old problems forward.
Integrations and operations carried over
ERP, 3PL, email, reviews, subscriptions, tax, and your ad platforms all have to reconnect on the other side. We map every integration the old store depended on and stand it back up so fulfillment and marketing don't break on day one.
Post-launch monitoring — we run it
The riskiest window is the two weeks after go-live, when most agencies have already left. We stay. We watch rankings, crawl errors, conversion rate, and revenue daily, and fix regressions while they're small. We build the migration and we run the aftermath.
Questions, answered.
Will I lose my Google rankings when I replatform?
Not if the migration is done correctly. Ranking loss comes from broken redirects, changed URL structures, missing metadata, or dropped pages — all preventable. We crawl the existing site, map a 301 redirect for every indexed URL, preserve titles and metadata, and track rankings daily through the cutover. Some short-term fluctuation is normal as Google recrawls; a sustained drop means something was missed, and we monitor specifically to catch and fix it fast.
How long does an e-commerce migration take?
For a mid-market store it usually runs a few months end to end — discovery, data migration, storefront rebuild, integration work, and QA. Timeline depends on catalog size, how many integrations the old store relied on, and how custom the current build is. We scope it honestly up front rather than quoting a number that slips. The actual cutover — going live on the new platform — is a tight, planned window, not a multi-day outage.
Which platforms do you migrate between?
Most commonly Magento and Adobe Commerce, WooCommerce, and legacy or custom builds onto Shopify, Shopify Plus, or BigCommerce. The destination should match how you actually sell and operate, not what's trendy — if a platform is a poor fit for your catalog, B2B logic, or fulfillment, we'll tell you before you commit, not after.
What happens to my customer accounts and order history?
They migrate. Customer records, order history, addresses, and where supported, passwords and store credit, all move to the new platform and get reconciled against the source before launch. Order history matters for support, returns, and lifetime-value reporting, so we treat it as core data, not an afterthought. Anything that genuinely can't carry over — usually a platform limitation — we flag in advance, never silently.
Do you just hand off the new site, or do you stay after launch?
We stay. Most replatforming agencies migrate the store and disappear at go-live — which is exactly when redirects, pixels, and conversion rates need watching most. For the weeks after launch we monitor rankings, crawl errors, analytics, and revenue daily and fix regressions while they're small. Building the migration and running the aftermath are the same job to us.
Do you work with Los Angeles brands in person?
Yes. We're a full-service agency based in Los Angeles and work with LA-area brands directly, on top of clients across the US. A migration touches engineering, SEO, design, and operations at once, so having one accountable team — rather than a stack of disconnected vendors — is the point.