In Data Manager, you can select the source "URL" or "query string" to retrieve the URL or part of the URL of the current page.
Since version 85 of Chrome, the referrer policy has changed for privacy reasons. If a site doesn’t define its own policy, then the default one applied by the browser will be strict-origin-when-cross-origin.
What impacts ?
With this policy, only the origin is sent in the Referer header of cross-origin requests. In order words, when our hit is fired, it is sent to our collection domain which is different from the domain of the site. In that case, only the main domain is set in the Referrer and the query string is lost.
What solutions ?
1/ We advise you to set your own referrer policy on your site, for instance: strict-origin-when-downgrade which was the previous default policy.
2/ As we remain dependent on the browsers and updates they can make, we recommend that you to push important information such as UTM in the Custom Object (stc parameter of the hit). This way, you are sure your tracking will not change even if browsers apply other updates.
Example : stc={"UTM":{"utm_source":"Facebook","utm_medium":"social","utm_campaign":"Football_2019"}}