Use Google Analytics 4 (GA4) to capture and analyze traffic data across your websites and applications.
If you use Google Analytics to monitor your project’s traffic, you can view the results of your Optimizely Experimentation experiments alongside the rest of the data that Google Analytics collects.
You can set up the integration between Optimizely Web Experimentation and Google Analytics 4 (GA4) both with and without Google Tag Manager (GTM). This article covers setting up the integration without using GTM. For instructions on setting up the GA4 integration using GTM, see this article.
Table of Contents
Configure GA4 in Optimizely Web Experimentation
Step 1. Add script in Optimizely Web Experimentation
Complete the following steps to add the script in Optimizely Web Experimentation:
- Go to Settings > Integrations.
- Expand the Create Analytics Integration.. drop-down list and select Using JSON.
- Copy the following code and paste it in the JSON Code field:
{
"plugin_type": "analytics_integration",
"name": "Custom GA4 integration",
"form_schema": [],
"description": "",
"options": {
"track_layer_decision": "var state = window['optimizely'].get('state');\nvar campaignObject = state.getDecisionObject({'campaignId':campaignId});\n\nif(campaignObject !== null){\n var utils = window[\"optimizely\"].get(\"utils\");\n utils.waitUntil(function() {\n return typeof(gtag) === 'function';\n }).then(function() {\n console.log('gtag is finally a function. Sending now.');\n gtag(\"event\", \"optimizely_decision_web\", {\n optimizely_experiment: campaignObject.experiment,\n optimizely_variant: campaignObject.variation\n });\n });\n}\n"
}
} - Click Create Extension.
Step 2. Install GA4 on your website
Install Google Analytics 4 (GA4) directly on your website. For help with this, complete the following steps in Google Analytics to find their data tagging instructions:
- Open Google Analytics.
- Go to Admin > Data Streams and open your website’s Web stream details page.
- Go to Tagging Instructions > Global site tag (gtag.js) to find the instructions for adding GA4 to your website.
Now your Optimizely Web Experimentation data immediately starts syncing to GA4 (no further steps required).