in GA4 Items Array is an important part of eCommerce tracking. I have covered items array in GA4 eCommerce Tracking post along with other aspects of eCommerce Tracking. In this post, I am going to focus on the Items Array completely.
What is GA4 Items Array?
Items array is a JavaScript array object that contains the information about the product(s) that the user on your site or app is interacting with.
An example array with just one item looks like
GA4 Items Array Parameters
Items array can contain the following parameter (source: https://developers.google.com/analytics/devguides/collection/ga4/reference/events#view_item_list_item).
Of these only item_id and item_name are required, however more information you pass the better your reporting and analysis will be,
Note: You can not pass any additional parameters than those specified above. This might change in the future but as of the now, that's not possible.
Now that you understand the items array let's look at the event parameters for other events
How to pass Items Array to eCommerce Events
You can pass the items array to any of the eCommerce events as the value for the "items" parameter.
GA4 eCommerce Implementation with gtag
If you are implementing the call directly on your website then you can use the following as an example. Note, in this case, we have two items in the items array.
GA4 eCommerce Tracking with GTM (Google Tag Manager)
Below is an example of the purchase event, we are passing a parameter called "items" and the value is a javascript variable that pulls the items array from their custom datalayer.
If you do need any help then reach out to us at support@optizent.com or fill out the form to contact us.
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