This guide explains:
Cross-domain visitor tracking in iPaper
If you're tracking an existing GA4 property and want to follow visitors between your Flipbook and website, there are a few additional steps needed to enable this feature.
💡 If you're using a Branded Domain, and serving your iPaper publications from a subdomain (Example: Catalogs.YourWebsiteDomain.com), you can skip this guide entirely. Google Analytics tracks sessions across subdomains by default when using their tracking script.
Check-list for setting up cross domain tracking with GA4.
All websites must be set up using the same GA4 property (G-XXXXXXX.)
Cross-domain tracking must be configured in GA4 Admin.
Please note that there's no need to configure the referral exclusion list: this is handled automatically in GA4.
Setting up cross-domain tracking
Log in to your GA4 account
Navigate to Admin:
In the Property section, select Data Streams.
Select More Tagging Settings.
From the More Tagging Settings page, select Configure your domains.
Add your domains, as seen here:
With this now in place, your Flipbook visitors will now be tracked across domains, and will be seen as the same visitor when they hit your domain.
Confirming your cross-domain setup works
You can confirm that your cross-domain setup works by looking at the URL when linking between your catalog and your website. As soon as you set up an external link from the catalog, the URL will be appended with a query string, similar to this one:
?_gl=1%2Aic6dto%2A_ga%2AMTM2ODE5NTg0Ny4xNjM3MTY1MjQy%2A_ga_ESMSE9YE01%2AMTY0MjE5OTgxMS40LjEuMTY0MjE5OTg1My4w
This shows that cookie information can be passed from your catalog to your website. The very same thing should happen when you link from your website to the catalog.