Crazy Egg can optionally send a custom event to Google Analytics whenever an A/B Test variant is viewed by one of your site visitors. This event will include custom properties specifying the name and ID of the variant that was viewed and the name and ID of the associated A/B Test for use in your Google Analytics reports.
Integration method
If you have installed Google Analytics (GA4) directly on your site this installation method is for you.
GTM: If you installed Google Analytics through Google Tag Manager, you must follow some extra steps so Crazy Egg’s script can send custom events to Google Analytics. See A/B Test and Google Analytics Integration via GTM
Configuring Custom Definitions in Google Analytics
You will need to configure Google Analytics to report on the custom event properties that Crazy Egg sends. Otherwise, they will not consistently appear in your GA reports. These steps are repetitive, but they only have to be performed once to integrate Crazy Egg fully with Google Analytics.
Log in to Google Analytics at https://analytics.google.com/ and select the desired account and property.
Click Admin from the bottom of the navigation area on the left side of the page.
Under Data Display, select Custom Definitions.
Click the Create custom dimension button.
Create the “Crazy Egg AB Test ID” dimension
- Enter
Crazy Egg AB Test IDinto the Dimension name field - Enter
crazyegg_ab_test_idinto the Event parameter field - Click Save
Create the “Crazy Egg AB Test Name” dimension
- Enter
Crazy Egg AB Test Nameinto the Dimension name field - Enter
crazyegg_ab_test_nameinto the Event parameter field - Click Save
Create the “Crazy Egg Variant ID” dimension
- Enter
Crazy Egg Variant IDinto the Dimension name field - Enter
crazyegg_variant_idinto the Event parameter field - Click Save
Create the “Crazy Egg Variant Name” dimension
- Enter
Crazy Egg Variant Nameinto the Dimension name field - Enter
crazyegg_variant_nameinto the Event parameter field - Click Save
Create the “Crazy Egg AB Test and Variant” dimension
- Enter
Crazy Egg AB Test and Variantinto the Dimension name field - Enter
crazyegg_ab_test_and_variantinto the Event parameter field - Click Save
Afterward, the Custom dimensions table should have four new custom dimensions:
| Dimension name | Description | Event |
|---|---|---|
| Crazy Egg AB Test ID | Crazy Egg A/B Test ID | crazyegg_ab_test_id |
| Crazy Egg AB Test Name | Crazy Egg A/B Test Name | crazyegg_ab_test_name |
| Crazy Egg Variant ID | Crazy Egg Variant ID | crazyegg_variant_id |
| Crazy Egg AB Test and Variant | Crazy Egg A/B Test and Variant | crazyegg_ab_test_and_variant |
| Crazy Egg Variant Name | Crazy Egg Variant Name | crazyegg_variant_name |