Connect Google Tag Manager to Google Analytics
In order to collect analytics (data to see who has visited the site, added something to their basket, checked out an order etc) from your booking engine, you’ll need to configure Google Tag Manager to connect to your Google Analytics 4 property.
How to configure the configuration tag?
To set this up head to Google Tag Manager > Tags > New > select 'Choose a tag type to begin set up' > select the 'Featured' tag type named "Google Analytics: GA4 Configuration" > Enter your GA4 Measurement ID in the measurement ID box.
Then select 'choose a trigger to make this tag fire' > Set this tag to trigger on “All Pages”. Then 'Save' the tag.