GA4 CUSTOM DIMENSIONS SETUP

GA4 Custom Dimensions Setup

Enrich GA4 reporting with custom dimensions for your business data.

Custom dimension strategy and specification
User-scoped custom dimension setup
Event-scoped custom dimension setup
Session-scoped custom dimension setup

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Fixed Price

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2–5 Days

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30-Day

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About This Service

What Is GA4 Custom Dimensions Setup?

Custom dimensions in GA4 allow you to add your own attributes to users, sessions, and events, making it possible to segment reports by dimensions meaningful to your business such as user account type, subscription plan, content category, product line, or A/B test variant. Without custom dimensions, the parameters you pass with events are invisible in reports.

Setting up custom dimensions requires registering each parameter in the GA4 property settings with the correct scope including event, session, or user, and the correct data type. Custom dimensions must be registered before data arrives because they cannot be backfilled. GA4 allows a maximum of 50 event-scoped and 25 user-scoped custom dimensions, so registration decisions require careful planning.

Adslytics configures custom dimensions as part of a planned measurement schema rather than as an afterthought. Each dimension is documented with its scope, the event or user property that populates it, the expected values, and its purpose in reporting. You receive a custom dimension inventory your team can reference for future report building.

Quick Facts

Delivery 2–5 business days

Pricing Fixed upfront quote

Access Needed GTM + relevant account

Support 30 days post-delivery

Certification Google-certified specialist

Output Written documentation

What You Get

Every GA4 Custom Dimensions Setup Engagement Includes

Custom dimension strategy and specification

User-scoped custom dimension setup

Event-scoped custom dimension setup

Session-scoped custom dimension setup

GTM variable mapping to parameters

Custom dimension registration in GA4 admin

Data layer variable configuration

Custom dimension validation

Looker Studio report with custom dimensions

Documentation and dimension dictionary

Our Process

How We Deliver GA4 Custom Dimensions Setup

Audit & Review

We examine your existing setup, ad accounts, and analytics to understand exactly what needs to be built or fixed.

Scope & Price

You receive a clear, fixed-price quote with defined deliverables before any work begins. No surprises.

Build & Test

We implement and verify everything in GTM Preview mode, DebugView, or the relevant platform debugger before going live.

Deliver & Document

We launch, confirm all tracking fires correctly, and hand over full written documentation of everything built.

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Why Adslytics

The Difference a Specialist Makes

Google-Certified Specialists

Every project is handled by a Google-certified tracking specialist. Not an account manager. Not a junior contractor. The person on your project is the expert.

Fixed-Price, No Surprises

You see the exact price before work starts. We scope every project fully before quoting — so you know what you are getting and what it costs, with no ongoing meter running.

Full Written Documentation

Every delivery includes documentation of what was built, what triggers each event, and how to verify it. Your team can maintain it without coming back to us.

Direct Access to Your Specialist

You communicate directly with the person doing the work. No ticketing systems, no account managers relaying messages. Direct Slack or WhatsApp contact throughout.

Verified Reviews

What Clients Say

"We'd been running GA4 for six months with barely any useful data — missing events, broken funnels, no purchase data. After the audit and rebuild we finally have accurate revenue figures and a proper conversion funnel. Completely transformed how we report."

Sarah Kim

Head of Marketing

"The GA4 migration from Universal Analytics was blocking our whole reporting stack. The team handled the full migration, set up matching custom events and built us a Looker Studio dashboard that replaced our old UA reports within days."

David Marsh

Growth Manager

"Our GA4 was technically installed but 90% of the custom events we needed weren't firing. After the setup service we have scroll depth, video plays, form submissions and checkout steps all tracking correctly. Now we can actually optimise."

Lisa Park

Marketing Director

FAQ

Frequently Asked Questions

Real answers to questions we hear from clients before starting a GA4 Custom Dimensions Setup project.

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A custom dimension is a field you define in GA4 to capture data that isn't collected by default — like user type, subscription level, or content author.

Event scope (applies to a single event), user scope (persists for the lifetime of the user), and item scope (for ecommerce product data).

Up to 50 event-scoped and 25 user-scoped custom dimensions in the free version. GA4 360 allows more.

Logged-in status, user ID, subscription tier, content category, author, A/B test group, store location, and device type.

Registered custom dimensions appear as available dimensions in GA4 Explorations, where you can use them to filter and segment your data.

Standard reports use a fixed set of dimensions. Custom dimensions are primarily used in GA4 Explorations and Looker Studio reports.

Via event parameters in GTM (for event-scoped dimensions) or user properties in GTM (for user-scoped dimensions).

Custom dimensions are text values (category names, tier labels). Custom metrics are numerical values (score, count, value).

No — custom dimensions only apply to data collected after they are registered in GA4 admin.

Via GA4 Explorations using the custom dimension as a row or filter.

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