Counter-ready payments
UPI QR codes belong on stable, visible counter layouts with enough white space to scan even in harsh lighting.
Product discovery from physical shelves
URL and file QR codes are useful for extended product details, care guides, warranty PDFs, and size charts when shelf space is limited.
After-sales support
WhatsApp, phone, and email QR codes make it easier to move customers into support channels without asking them to type a number or address.