# \[FE\&R] Send AB Tasty events to GA4

### Introduction

The AB Tasty > GA4 Push Connector enables you to automatically send server-side experiment data from AB Tasty’s Feature Experimentation platform to Google Analytics 4 (GA4). This integration allows you to analyse how specific feature flags and variations impact your key metrics directly within GA4, without requiring client-side tracking.

Once configured, the connector pushes campaign and variation identifiers as custom events in GA4 whenever a decision is made for a visitor. This ensures consistent experiment tracking across both platforms, enabling more unified reporting and deeper behavioural insights.

{% hint style="warning" %}
**Visitor ID requirement**\
To make this integration work, you must pass the correct GA4 user identifier when calling the Decision API.

What you must do\
• Set a user ID in GA4 if you use your own identifier, for example:\
`gtag('set', { 'user_id': '12345' });`\
• Or retrieve the GA4 client ID using:\
`gtag('get', 'G-XXXXXXX', 'client_id', (clientId) => { console.log('Client ID:', clientId); });`\
• Call the Decision API with this same visitor ID, otherwise, the hit won’t be sent to the third party
{% endhint %}

### How-to

{% stepper %}
{% step %}

#### on Google Analytics: Create Custom Events on GA4

* Go to **Admin** → **Data Display** → **Custom definitions**
* Create a custom dimension for:
  * flagship\_campaign[^1]
  * flagship\_variation[^2]
    {% endstep %}

{% step %}

#### on Google Analytics: Generate an API Key

* Go to **Admin** → **Data streams** → **Measurement Protocol API secrets**
* Generate **an API key**
  {% endstep %}

{% step %}

#### On AB Tasty: Create a GA4 Connector

* Go to the **Integration Hub** > **Feature Experimentation**
* Create a **GA4 push** instance
* Enter **API secret** and **measurement ID**

<figure><img src="/files/a0S6URglsEhhB9y7HCh7" alt=""><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}

[^1]: <img src="/files/YQZRTZ6S0My5jlmsFXoX" alt="" data-size="original">

[^2]: <img src="/files/JywYDG4gWy9vmoNw5Zlt" alt="" data-size="original">


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