Product view information is only displayed if the tag is present. It must be added to each page you plan to monitor.
Provided that you have set product attributes in Google Analytics, and item IDs are present at the cart and purchase stages, the easiest way to set this is via the Google Analytics tag and “Custom Parameters”.
The most universal way is to add the code using the Google Ads tag and Google Tag Manager. First, make changes and add the required parameters to the Google Ads tag:
installation code
Now go to the tag settings and click "Collect special attributes part time data or parameters to personalize advertising." Next, you need to check the boxes next to the parameters and save.
You can add a tag to a resource yourself using Tag Manager.
Setting up audiences
Before launching the advertising campaign, it is necessary to create remarketing lists. These are the users who will see ads. In general, the system itself creates a list of people who have previously visited the page with the remarketing code:
Setting up audiences
But you can also set up your own lists by clicking on "+". There are plenty of scenarios for segmentation. You can select a group of people who have abandoned their cart in the last 2 weeks. In general, there are many options