Before we proceed, I would like to include a disclaimer that this solution may not be applicable to all accounts and its functionality depends on the structure of your dataLayer. If your dataLayer conforms to the GA3 guidelines, then this solution is likely to work effectively.
I would also like to give a shoutout to Simo Ahava for developing a template that fulfils a critical requirement by transforming GA3 dataLayer items into a format that can be easily read and understood by GA4.
Check out the steps below.
1. Navigate to the Variables tab and select “New” option under the User-Defined variables section.
2. Access the variable configuration and select “Discover more variable types” in the Community Template Gallery. Next, search for “GA4” and locate the EEC Products -> GA4 Items template created by Simo Ahava.
Once you have located the EEC Products -> GA4 Items template, add it to your workspace and save it. Ensure that you don’t make any alterations to the template and save it as “EEC Products -> GA4 Items”.
3. Generate variables for Items, Transaction ID, Value, Tax, Shipping, Currency, and Coupon. To accomplish this, click on “New Variable” and search for “DataLayer variable”. Please note that the codes used for these variables will differ depending on the structure of your dataLayer. In most of my e-commerce accounts, I have utilised “ecommerce.tax” or “ecommerce.value” with successful outcomes.
4. The code for “items” may remain the same as before, which is “ecommerce.items”, or it could be slightly different, depending on your dataLayer structure. If this applies to you, raise a custom JacaScript for:
function() {
var ecom = {{Ecommerce}};
if ( ecom && ecom.items ) {
return ecom.items;
} else {
return undefined;
}
}
5. It’s possible to create a single tag for all events, which will resemble the following format:
6. Your trigger will be a customised event, and you can create a single trigger for all events.
Event Name:
view_item | view_item_list | select_item | add_to_cart | remove_from_cart | view_cart | begin_checkout | add_payment_info | add_shipping_info | purchase
These are the steps to raise GA4 eCommerce events. It is crucial to understand that this method may not be compatible with all eCommerce platforms. You must have a purchase event or add_shipping event in the dataLayer for this method to function. We have had success with this approach in approximately 80% of our accounts.
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