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Complete GA4 reimplementation

GA4 Migration and Implementation Services Done Right

Universal Analytics stopped collecting data in 2023, and many businesses rushed into GA4 with a basic setup that records page views but misses the conversions, eCommerce data, and reports teams rely on.

MetaXell rebuilds tracking properly when you replace an incomplete setup, redesign a website, change platforms, or move from another analytics tool.

Plan My GA4 Migration
GA4 migration and implementation planning
2–3
Weeks typical
2
Weeks monitored
100%
Documented

When you need a GA4 migration or reimplementation

Migration is not limited to leaving Universal Analytics. It is the right approach whenever your measurement foundation or underlying platform needs a controlled rebuild.

GA4 was configured with the automatic setup assistant and never customized
Universal Analytics goals were never rebuilt as GA4 key events
You are moving to a new website, CMS, or eCommerce platform
You are switching from Adobe Analytics, Matomo, or another tool
Tracking is hard-coded and needs to move into Google Tag Manager
You are adding another domain, subdomain, or mobile app
Nobody can explain what is tracked or why
Complete measurement foundation

What our GA4 migration service includes

Planning, implementation, validation, documentation, and team enablement in one controlled engagement.

Tracking inventory

We document current goals, events, and custom dimensions, then decide what should remain, change, or be retired.

Measurement plan

We map business goals to GA4 events, parameters, and key events using a clear and durable naming convention.

Google Tag Manager setup

We build an organized GTM container with tags, triggers, and variables that your team can understand and maintain.

Event and conversion tracking

Forms, calls, bookings, sign-ups, downloads, video plays, and important clicks are implemented and tested.

eCommerce implementation

We track the complete journey from product views to purchases and refunds using your platform's data layer.

Cross-domain and app tracking

Create one coherent customer journey across domains, subdomains, checkout pages, websites, and mobile apps.

Consent Mode v2

Measurement respects user consent choices and supports responsible data collection across relevant regions.

Google integrations

Google Ads, Search Console, Merchant Center, and BigQuery are connected and validated.

Historical data guidance

We advise on preserving exported legacy data for year-over-year analysis and ongoing reporting.

Reporting and training

Your team receives useful Looker Studio dashboards, documentation, and practical GA4 training.

Controlled from plan to launch

Our migration process

  1. 1

    Discovery

    We review your current implementation, technology, business goals, and reporting needs.

  2. 2

    Inventory and plan

    We document existing measurement and agree on a new event and conversion framework.

  3. 3

    Build

    We implement GA4 and Google Tag Manager in a test environment whenever possible.

  4. 4

    Test

    We validate every event in real time and compare results with legacy or sales data.

  5. 5

    Launch

    We publish the new implementation and monitor it closely for the first two weeks.

  6. 6

    Handover

    You receive complete documentation, dashboards, and a practical training session.

Platforms we work with

From managed commerce platforms to custom applications and multi-domain ecosystems.

WordPressWooCommerceShopifyMagentoBigCommerceWebflowWixSquarespaceHubSpot CMSCustom websites and web apps

Why choose MetaXell for GA4 implementation

A measured migration that protects what matters and leaves your team in control.

Nothing important gets lost

We inventory current tracking before changing or removing anything.

Built for your business

Events reflect your goals and customer journeys rather than a generic template.

Tested properly

Every important event is checked before launch and validated again afterward.

Clearly documented

You receive an understandable record of every tag, event, parameter, and conversion.

Support after launch

We remain available to resolve issues and extend measurement as your business grows.

GA4 migration FAQs

Answers about timing, historical data, website changes, and implementation.

No. Universal Analytics no longer collects data, but many GA4 properties were configured quickly and still lack important measurement. A proper implementation gives you accurate data from the day it launches.

Start your GA4 migration with a plan

Book a free call. We will review your current tracking and outline a clear path to a GA4 setup your team can trust.

Book My Free Migration Call
Explore our Analytics service.Diagnose issues with a GA4 audit.Work with a Google Analytics consultant.Migrating a new site? See our website redesign services.