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 how much contrast a printed QR code needs for reliable scanning by phone cameras is crucial for successful marketing campaigns on physical materials like flyers, posters, and business cards.
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.
Understanding the fundamental difference between static and dynamic QR codes is crucial for any printed campaign, as the choice can significantly affect your budget and the long-term effectiveness of your marketing materials.
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.
The monthly fee is the small number. The one that decides the comparison is what a reprint costs when a code stops resolving, and that risk appears on nobody's pricing page.
A printed QR code has no clock in it. What expires is the service behind it, which is a business decision rather than a technical one, and it is worth checking before a print run.