A market stall only reaches whoever happens to walk by. A QR code on a simple printed sign extends that reach to anyone who took a photo, saw a friend's post, or wants to reorder without coming back in person.
Setting it up correctly
Use a dynamic QR code, not a static one, since a static code baked with today's page address becomes permanently dead the moment you update anything. A dynamic code points at a link you control, so the same printed sign keeps working even if your page changes completely next season.
What the scan should lead to: your full product range (not just what fits on the stall today), a cash-on-delivery order form for anyone who wants something delivered rather than carried home, and a WhatsApp block for questions about availability or custom requests.
Print it once, on a simple card or sign at the stall. Everything behind the scan can keep evolving without the printed piece ever going stale.