App start URL UTM builder
Strip the campaign junk that came with a copied link and tag the start URL once, properly, so app traffic shows up as app traffic.
Pair it with app detection
UTM tags label the session's source. To label every page and every user, also set a GA4 user property with the app mode snippet. Full setup: tracking URL app users.
FAQ
Will UTM tags break my site?
No. Sites ignore unknown query parameters; only analytics reads them.
Related
LearnTracking app users in analyticsSeparate app traffic from website traffic in GA4 and other analytics: a start-URL parameter, user-agent detection, a custom dimension and app install attribution.ToolsStart URL inspectorPaste the URL you want to turn into an app. Checks https, redirects-prone hosts, tracking parameters, ports and IPs, and suggests a clean start URL and package name.ToolsApp mode snippetGenerate JS and CSS that detect when your site runs inside your Android URL app, add an in-app class and hide web-only elements like app banners.