Guides on dynamic QR codes: how they work, why printed codes stop resolving, how a scan reaches the right GA4 channel, and what to check before you print.
Understanding the nine UTM parameters helps you track your print campaign performance, but only a few are truly essential for measuring the effectiveness of your QR codes in physical media.
Learn how to accurately attribute your printed QR code campaign traffic in Google Analytics 4 by strategically using UTM parameters and dynamic QR codes, ensuring valuable scan data never falls into the dreaded "Unassigned" channel.
GA4 files traffic using a fixed list of recognised medium values, and there is no rule for a QR medium. The sessions are not lost, they are unclassified, and there are two honest ways to fix that.