Google Tag Manager Expert Services

BigQuery Cohort and Retention Analysis

Cohort-based retention tracking in BigQuery SQL

Build cohort retention analysis in BigQuery. Track user and customer retention over time with SQL-based cohort queries on your GA4 and transaction data.

200+
GTM Containers Audited
98%
Tracking Accuracy Rate
40+
Platforms Integrated
5★
Average Client Rating
Cohort retention analysis shows you whether your product or service is improving over time — do users acquired in Q1 2025 retain better than Q1 2024 users? This is the foundational metric for product-led growth, subscription businesses, and any company where repeat engagement drives revenue. We build cohort retention SQL in BigQuery from your GA4 events or transaction history, visualised as standard retention matrices.

Ready to Get Your Tracking Set Up Properly?

What's Included in This Service

Everything you need for accurate, reliable tracking — delivered end-to-end.

User acquisition cohort definition queries

Week-over-week and month-over-month retention matrices

Revenue cohort analysis (not just user counts)

Segment-level cohort comparison

Retention benchmark visualisation in Looker Studio

Automated monthly cohort refresh

How We Work

Our proven 4-step process delivers results every time.

01

Discovery & Audit

We review your existing tracking setup, identify gaps and issues, and define the exact scope of work needed.

02

Implementation Plan

We design the data layer schema, tag architecture, and consent configuration before touching anything.

03

Build & QA

All tags, triggers, and variables are built in a GTM workspace and verified in Preview mode before publishing.

04

Verify & Handover

Test conversions, GA4 DebugView confirmation, and full documentation handed to your team.

Why Choose Adslytics?

Google Tag Manager Experts Only

Our GTM experts focus exclusively on GTM, GA4, and conversion tracking — not generalist digital marketing.

Data-Verified Results

Every implementation is cross-referenced against backend data — not just assumed to be working.

Full Documentation

You receive a complete implementation specification — not a black box you are dependent on us to maintain.

Fast Turnaround

Most setups and audits are delivered within 2–5 business days, not weeks.

What Our Clients Say

Real results from real businesses.

"Adslytics did a great job with our GA4 analysis and report. They were able to put complex analytics data into a very understandable document for our client. Highly recommend!"

Eric H.

Digital Agency Owner

"The team was quick with responses, very knowledgeable about issues, and helpful throughout the process. I appreciated their work habits and would hire Adslytics again."

Nick T.

Marketing Manager

"Adslytics is a very professional agency that managed our project successfully. They delivered exactly what was promised and I will definitely hire them again in the future!"

Hady M.

E-commerce Business Owner

Ready to Get Started with BigQuery Cohort and Retention Analysis?

Get accurate conversion tracking that powers smarter ad decisions. Book a free 30-minute consultation.

Frequently Asked Questions

Cohort analysis groups users by when they first performed an action (sign up, first purchase) and tracks what percentage return in subsequent periods. A retention matrix shows these rates across cohorts simultaneously.
Yes — GA4's user_id and event data contain everything needed for behaviour cohort analysis. For revenue cohorts, we add your order transaction data.
Day 1, Day 7, Day 30 retention for apps. Week 1, Month 1, Month 3 for websites and SaaS. 30/60/90-day repeat purchase rate for ecommerce. We build whichever metrics matter for your business model.
The diagonal shows users from the same period. Improving retention shows up as higher percentages in the same column across newer cohort rows. We deliver annotated visualisations explaining the story in your data.
Yes — by joining GA4 acquisition source data with cohort retention, you can compare 90-day retention rates for users acquired from Google Ads vs. organic search vs. social media.

BigQuery Cohort and Retention Analysis — Done Right, First Time.

Stop losing revenue to broken tracking. Get it fixed today.

Talk to Us, It's Free

We are always willing to help. Let us know what you are looking for, and we will develop a unique solution for you.

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Our support Hotline is available 24 Hours

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