Eighteen minutes. That’s how long the WooCommerce checkout stayed broken while a payment plugin and a caching plugin fought each other. Black Friday is 38% of her year, and she hadn’t slept properly since.
Migration WordPress to Shopify migration · WooCommerce to Shopify Plus · UK
WordPress to Shopify migration for the brand that outgrew Woo. and wants Shopify Plus without the BFCM panic.
We move UK brands off WordPress + WooCommerce + 27 plugins onto Shopify Plus — every URL held, checkout at SAQ-A PCI scope, Klaviyo + Recharge ported, customers auto-migrated, load-tested to 8× baseline. Twelve weeks, fixed scope, zero cutover downtime.
4UK Woo → Shopify migrations shipped 2024-2025
0cutover downtime incidents in production
8×baseline load tested before launch
(Why DTC brands sign for the move)
WooCommerce + 27 plugins ran your last BFCM. It isn’t running the next one.
Your store outgrew WordPress the day a plugin update broke checkout for 18 minutes. The WooCommerce to Shopify Plus move is the moment to drop your PCI scope, end the plugin roulette, and get a checkout that holds at 8× peak. Twelve weeks, fixed scope, fixed price.
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The founder this page is for18 min checkout down · BFCM eve · 27 plugins
Priya pushed a plugin update the night before Black Friday. Checkout went down.
The store worked, for the traffic she usually had. Twenty-seven plugins, a checkout that touched her own servers, and a PCI bill north of £25K a year. Nobody had load-tested at peak. Why would they? They’d never sat at peak for long.
We moved her to Shopify Plus in twelve weeks. Every URL held, the checkout dropped to SAQ-A PCI scope, Klaviyo lifecycle ported, and the store load-tested to 8× baseline. This page is for the brand that’s decided WooCommerce is out, and wants the next BFCM to be quiet.
WooCommerce to Shopify Plus migration
Four phases, each one a deliverable
No mystery box. Each phase is fixed-scope, fixed-price, and ends with a written deliverable. You decide whether to continue at every phase boundary, and your live store keeps selling until cutover.
Phase 01
Migration audit, 5 days, £8K fixed
Two senior engineers read your WooCommerce store, data, plugins, and integrations. Output: an audit pack with redirect plan, PCI scope target, data map, and a fixed quote.
Phase 02
Build the Shopify Plus target, 4-6 weeks
Theme or Hydrogen front end, product and order data dry-runs, Klaviyo flows ported, Recharge and ERP rewired. Your Woo store keeps selling. No customer-facing change yet.
Phase 03
Cutover, planned window, zero downtime
Often midweek, off-peak. Final data sync, DNS flip, 301s deployed, customer password-reset flow live. Old store stays reachable until redirects settle. Rollback rehearsed.
Phase 04
Stabilise + load test, 2-4 weeks
k6 load test to 8× baseline. Redirects validated against Search Console. We monitor, fix what only production surfaces, hand over the runbook, and decommission WooCommerce.
Nine risks that sink a re-platform. How we close each one.
We don’t pretend a WooCommerce to Shopify Plus migration is risk-free. We make the risks legible and mitigated, in writing, before a single customer sees the new store.
- 01
“Re-platforming will tank our organic traffic and our rankings.”
1:1 redirect map, 301s validated. Every WooCommerce URL mapped to its Shopify equivalent. 301s deployed and validated against Search Console traffic data before and after cutover.
- 02
“Our PCI bill is £30K a year and the audit is brutal.”
SAQ-A scope, card data off your servers. Stripe Elements or Shopify Payments. Card data never touches your infrastructure. Annual PCI cost drops from £25-40K to £2-4K.
- 03
“If customers lose their accounts and order history, we lose them.”
Auto-migrated with a password-reset flow. Customers migrated with a one-time reset on first login. Order history preserved. Loyalty and subscription data ported across.
- 04
“Our Klaviyo flows are our revenue. We can’t lose deliverability.”
Klaviyo lifecycle ported, subscribers migrated. Welcome, abandoned cart, post-purchase, win-back. Templates ported, subscriber data migrated, no drop in deliverability.
- 05
“We run subscriptions on WooCommerce. Will billing survive the move?”
Recharge / Stripe Subscriptions ported. Active subscriptions migrated with billing dates and tokens preserved. Dunning re-tested. No customer gets double-charged or dropped.
- 06
“NetSuite, Linnworks, and ShipBob are wired into Woo. What happens?”
NetSuite / Brightpearl / Linnworks rewired. ERP and 3PL connections rebuilt against Shopify. ShipBob and Huboo re-tested. Idempotent order pipeline so nothing double-fulfils.
- 07
“Last BFCM the checkout broke for 18 minutes. I can’t go through that again.”
k6 load test to 8× baseline. Load-tested to 8× expected BFCM peak before launch. Idempotent order pipeline, webhook dead-letter queue. The next BFCM is quiet.
- 08
“Orders sometimes go missing between systems and nobody notices.”
Idempotent pipeline + webhook DLQ. Every order event is idempotent and replayable. Failed webhooks land in a dead-letter queue with alerting, so an order never silently vanishes.
- 09
“A big-bang switch on Black Friday eve is the thing that keeps me up.”
Planned off-peak window, rehearsed rollback. We never cut over near peak. Final sync, DNS flip, rehearsed and reversible. Old store reachable until redirects settle.
The stack we migrate your WooCommerce store onto.
We default to Shopify Plus with a Liquid or Hydrogen front end. The migration-specific tooling is what keeps the data move reversible and the redirects honest.
T1
Default Shopify Plus target stack
Shopify PlusShopify PlusHydrogen + OxygenLiquidReact + Next.jsShopify PaymentsStripe ElementsKlaviyoRechargeShopify FunctionsStorefront APIPlaywrightMixpanel
T2
Migration-specific tooling
parity + safetyMatrixifyRedirect map generatork6 load testingWooCommerce REST exportSearch Console diffWebhook DLQ
T3
Infra, integrations, safety net
AWS-defaultAWSAWS LambdaEventBridge + SQSS3 + CloudFrontNetSuite / BrightpearlLinnworksShipBob / HubooRedisTerraformDatadogSentry
WooCommerce to Shopify Plus · UK DTC brand
Priya’s 18-minute outage,
Priya’s 18-minute outage,
never again, in numbers
Brief: leave WooCommerce + 27 plugins before the next BFCM. Twelve-week migration to Shopify Plus with a Hydrogen front end. Checkout dropped to SAQ-A PCI scope. 1:1 redirect map deployed. Klaviyo lifecycle ported, customers auto-migrated, store load-tested to 8× baseline.
The migration
12 weeks
Woo to Shopify Plus
0
Minutes of cutover downtime
Compliance
£30K£3K
Annual PCI cost, SAQ-A
100%
URLs preserved with 301s
Peak readiness
8×
Baseline load tested
0
Dropped orders on next BFCM
Three ways to start. Pricing in the email back.
Pick the shape that fits and Mohit will send your real number inside 24 hours.
5-day migration audit
Two senior engineers read your WooCommerce store, data, plugins, and integrations. Map the migration. Write the redirect plan. Quote the sprint.
- Redirect map + PCI scope target
- Data map + rollback plan
- Integration inventory
- Fixed quote, £8,000 fixed (GBP)
Shopify Plus migration sprint
Build the target, dry-run the data, plan the cutover, load test to 8× baseline, stabilise, decommission. Catalogue size and integrations drive the scope.
- Shopify Plus or Hydrogen front end
- 12-week fixed-scope sprint, typical
- Zero-downtime, planned cutover
- From £35,000 fixed (GBP)
Post-migration retainer
One day a week of a senior engineer for 3 to 6 months. New apps, theme work, peak-readiness, and your team gets unblocked through BFCM season.
- One senior day per week
- New features + peak hardening
- Your team paired and trained
- From £5,000 / month (GBP)
“Twelve weeks, every URL held, PCI cost down to a tenth, and the next Black Friday was the quietest evening we’ve had in years.”
— Priya N., Founder, UK DTC brandReal questions we get on the audit call
Pain-first, soft-second. No marketing varnish.
No, if it’s done properly. We build a 1:1 redirect map at audit, deploy 301s for every WooCommerce URL, and validate them against your Search Console traffic before and after cutover. Rankings come across with you. The brands we’ve migrated held their organic traffic through the move.
Yes, once. Shopify doesn’t accept WooCommerce password hashes, so we auto-migrate every customer with a one-time reset on first login. Order history, loyalty, and subscriptions come across. It’s a single email, not a mass lockout, and we time it so it lands well clear of peak.
Twelve weeks is typical. Catalogue size, the number of plugins doing real work, your subscription and ERP integrations, and the front-end complexity drive the scope. The 5-day migration audit gives you the real number for your store before you commit a penny to the sprint.
Depends on your order volume, checkout customisation, and whether you need Shopify Functions or B2B. We’ll be honest at audit if standard Shopify is the right home for you rather than upselling Plus. Most brands at the “we broke at BFCM” stage are genuinely past the standard plan.
Subscriptions migrate to Recharge or Stripe Subscriptions with billing dates and tokens preserved, so nobody gets double-charged or dropped. NetSuite, Brightpearl, or Linnworks are rewired against Shopify, and ShipBob or Huboo are re-tested. We list every integration and its destination in the audit pack.
30-day walk-away both ways. The migration audit is a fixed £8,000 before the sprint, so you bound the risk at 5 days, not three months. UK VAT registered, listed on Companies House, shipping since 2019. The build lives in your repo and your Shopify org from day one.
Yes. We run a headless Shopify migration path on Hydrogen and Oxygen with a React front end and the Storefront API. We’ll recommend theme versus headless at audit based on your design ambition, your team, and your performance targets, not on which one we’d rather build.
That’s the plan, always. We never cut over near peak. We pick a quiet, off-peak window, do the final sync, flip DNS, and keep the old store reachable until redirects settle. The store is load-tested to 8× baseline well before BFCM, so peak is something you watch, not survive.
In context
See it in context.
A look at the kind of wordpress to shopify migration surface we hand over — real screens, real data, documented and yours from day one.
Five lines. That’s it.
Send your current store, monthly orders, BFCM peak, and the deadline you’re working to. Mohit replies inside 24 hours with availability and the next 5-day migration audit slot.
What happens after the email lands
- < 24h
A personal reply.
Availability, and the next available 5-day audit slot.
- Week 1
Migration audit begins.
Redirect plan, PCI scope target, data map, fixed quote.
- Cutover
The store stays up.
Zero-downtime cutover. Load-tested to 8× baseline.