Can I create a generic QR code, print it now, and decide later what that QR code does?

Yes. You can do this with a Smart QR Code. A Smart QR Code lets you print the QR code now and set its final action anytime afterward. You can start with any default destination, such as your website URL, and later edit it to open a webpage, take users to WhatsApp, trigger an email, or choose a destination from your saved QR codes, such as your digital business card, product QR code, or PDF gallery.

You simply select the saved QR code you want to use as the destination, and the printed QR code will instantly start performing that action without needing to reprint anything.