Google Tag Manager · audit and setup

Google Tag Manager audit for accurate conversions.

encorp.ai audits and sets up Google Tag Manager for services websites and online stores: GA4 events, ad conversions and cookie consent. You see where visitors drop off and which campaigns bring enquiries and sales, so conversion rate work starts from accurate data.

€400
services website, excl. VAT
€2,500
online store up to 200 products, excl. VAT
30 min
free first call
Container audit
sample data

GTM container · 48 tags

  • Purchase recorded twicecritical
  • Ad tags fire before consentcritical
  • Enquiry form not recordedimportant
  • GA4 linked to Google Adsworks
Store funnel in GA4share of visitors
Product viewed
100%
Added to cart
18%
Checkout
11%
Purchase
6%

Biggest drop-off: from the product page to the cart.

Every step to the purchase is visible, and every purchase is recorded once.

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The problem

Decisions about ads and the website are made on numbers nobody can trust.

A GTM container grows over the years: tags from former agencies, duplicate events, forms that are not recorded and purchases without a value. Ad platforms optimise on the wrong conversions, and GA4 shows different numbers from the CRM and the store. Without accurate data you cannot tell where the website loses customers.

Duplicate
tags and events that count twice
Missing
conversions from forms, calls and orders
No consent
tags that fire before the cookie banner
The solution

An audit, a clean-up and measurement you can rely on.

We work in the container in your name: an audit first, then the setup, and every event tested with real actions.

Container audit

We review every tag, trigger and variable: what works, what is duplicated and what has stopped.

Measurement plan

We agree which actions matter to the business: an enquiry, a call, a booked slot, an order.

Events in GA4

Every valuable action is recorded as an event and a key event in GA4, with clear names.

Ad conversions

Conversions for Google Ads, Meta and the other ad platforms you use, with a value.

Store funnel

Product view, cart, checkout and purchase, with the exact value and items.

Cookie consent

Tags respect the visitor's choice through the cookie banner and Consent Mode v2.

Before and after

What changes after the audit

The website and the ads stay the same. What changes is what you know about them.

What changes after the audit
Before the auditAfter the setup
GTM containerTags from different years and agenciesA tidy container with clear names and a description
EnquiriesSome forms and calls are not recordedEvery enquiry is an event in GA4 and a conversion in the ads
PurchasesNo value, or recorded twiceEvery purchase once, with the exact value and items
Ad platformsOptimise on clicks or on the wrong conversionsOptimise on real enquiries and sales
FunnelYou cannot see where visitors drop offEvery step to the enquiry or order is visible in GA4
ConsentTags fire before the cookie bannerTags respect the visitor's choice
How it works

From the audit to data you can make decisions on

Changes are published only after testing and after your approval.

01
Step 1

Audit

We review the container, GA4, the ad conversions and the cookie banner, and compare the data with your real enquiries and orders.

  • Issues ranked by importance
  • Comparison with real data
  • Measurement plan
02
Step 2

Setup

We clean up the container and set up the events, conversions and consent according to the plan.

  • A tidy container
  • Events and key events in GA4
  • Ad conversions
03
Step 3

Testing

We test every event with test enquiries and orders in preview mode before publishing the changes.

  • Test conversions
  • Consent check
  • Published container version
04
Step 4

Handover

We hand over a description of every event and a funnel report, so your team knows what is measured and where to improve.

  • Event description
  • Funnel report in GA4
  • Recommended next steps
Prices

How much the audit and setup cost

The price depends on the type of website and includes the audit, the setup, the testing and a description of every event.

Services website

A company website that brings enquiries, calls or bookings

€400excl. VAT

  • Audit of the container, GA4 and ad conversions
  • Events for forms, calls, emails and bookings
  • Key events in GA4 and conversions for the ads
  • Tags that respect cookie consent
  • Testing with test enquiries
  • A description of every event

Online store

A store with up to 200 products

€2,500excl. VAT

  • Everything in the services website plan
  • Funnel: product, cart, checkout and purchase
  • Purchases with the exact value and items, never counted twice
  • Product data in the website's data layer
  • Conversions with a value for the ads
  • Funnel report in GA4
  • Testing with test orders

Other website

A store with more than 200 products, several domains or languages, a platform or an app

On request

  • Scope to fit the website and its goals
  • Several domains, languages or currencies
  • A proposal after the free call

The prices are for a one-off audit and setup. Ad campaigns and their budget are not included.

Example uses

When a Google Tag Manager audit makes the most sense

These are generalised scenarios, with no client names and no real data.

A services company

Pays for ads but does not know which campaigns bring enquiries and calls.

An online store

GA4 shows different revenue from the store, and the ads optimise on the wrong purchases.

A website after a change of agency

The container is full of old tags and nobody knows which one does what.

At a glance
For whomServices websites and online stores that pay for ads and want accurate data
What it includesContainer audit and clean-up, GA4 events, ad conversions, cookie consent
SystemsGoogle Tag Manager, GA4, Google Ads, Meta and the other ad platforms you use
Services website€400 excl. VAT
Online store€2,500 excl. VAT, up to 200 products
Other websiteOn request
OwnershipThe container and the data remain in your name

What does a Google Tag Manager audit include?

A Google Tag Manager audit is a review of everything the container loads on your website: tags, triggers and variables, who added them and whether they still work. We look for duplicate tags, events counted twice, forms and calls that are not recorded, and tags that fire before the visitor has given cookie consent. Then we compare the numbers in GA4 and in the ad platforms with your real enquiries and orders, to see how far apart they are.

The result is a list of issues ranked by importance and a measurement plan: which actions matter to the business and how to record them. Following that plan we set up the container, test every event and hand over a description of the setup. If you then want to advertise in ChatGPT too, the same container carries the OpenAI pixel: see marketing in ChatGPT.

How is tracking set up for an online store?

Tracking for an online store records the buyer's whole path: a product viewed, an item added to the cart, checkout started and the purchase. At every step the website passes the name, price and quantity of the items to the data layer, and GTM sends them on to GA4 and to the ad platforms. That way each purchase is recorded once, with the exact value and items, not as a number without a value or as two purchases.

The price of €2,500 excl. VAT is for a store with up to 200 products. We test the setup with test orders and compare the revenue in GA4 with the revenue in the store. The ads receive the value of every purchase, so campaigns in Google Ads and Meta can optimise for revenue, not only for the number of orders. For a store with more products, several languages or currencies, the price is on request and we set it after the call.

How does accurate tracking help raise the conversion rate?

Accurate tracking helps raise the conversion rate because it shows exactly where the website loses visitors. When every step to the enquiry or purchase is an event in GA4, the funnel shows on which page or at which checkout step people drop off. Changes to the design, the copy or the forms are then made where they have the greatest effect, and the result is measured against the previous figures, not by feel.

The same data makes advertising more effective. Ad platforms learn from the conversions you send them: if you record wrong or duplicate conversions, the budget goes to the wrong people. That is why at the end of the project we hand over a funnel report and recommended next steps. If you want AI to prepare the content and the weekly report for marketing, see AI marketing.

How much does a Google Tag Manager audit and setup cost?

A Google Tag Manager audit and setup costs €400 excl. VAT for a services website and €2,500 excl. VAT for an online store with up to 200 products. The price is one-off and covers the audit, the setup of events, conversions and consent, the testing and a description of every event. For a store with more products, a website with several domains or languages, a platform or an app, the price is on request, and we set it after the free 30-minute call.

Ad campaigns and their budget are not part of the price. The container and the data remain in your name, and the description lets your team or another agency carry on. If the audit is part of a broader AI transformation of marketing and sales, see the Encorp AIM (AI Implementation Method).

Questions

Frequently asked questions

What is Google Tag Manager?
A free Google tool for managing every tag on a website: GA4, the ad pixels and the conversions. Instead of adding each tag to the website's code, you set it up, test it and publish it in one place.
Why does GA4 show different numbers from the CRM or the store?
The most common reasons are events counted twice, forms and orders that are not recorded, and tags that do not respect cookie consent. The audit shows how far apart the data is and why.
What if the store has more than 200 products?
Then the price is on request. We set it after the free call, once we know what is in the store and what needs to be measured.
What access do you need?
Access to the GTM container, GA4 and the ad accounts. For an online store sometimes also to the website, to pass the order data to the data layer.
Are the ad campaigns included?
No. The audit and setup are about measurement. The campaigns themselves and the ad budget are not included in the price.
Do you also set up advertising in ChatGPT?
Yes. The OpenAI pixel and the Conversions API are added through the same GTM container. Setting up the ChatGPT Ads account is a separate service, from €900 excl. VAT.

Next step

Contact us

One of our experts will contact you, find out what kind of website you have and which actions you want to measure, and confirm the price of the audit.

  • A reply from one of our experts within one working day
  • No commitment
  • You talk to a consultant, not a bot

Send an enquiry

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