Fit the service flow
Consider a visible checkout or collection point. Keep the code away from clutter and check that guests can scan it without moving other objects.
Keep it readable
Check the code after installation and when it is cleaned or moved. A printed QR code and an NFC stand are different methods of opening a link; neither is automatically better for every guest.
Respect the guest’s choice
Do not offer discounts for reviews, ask for a five-star rating or pressure guests to post before leaving. Let feedback reflect their experience.
Official sources
Google: tips for customer reviews and replies · Google Maps contribution policy
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