Size and placement
At least 2 cm square, with a little clear space around it, usually on the back of the invitation or the RSVP card.
Wording
Put a line beside it: 'Scan to RSVP' or 'Scan for the details and to reply'. Add your short link for anyone without a camera.
Test before you print
Scan the proof with two different phones. Your RSVPea code always opens your website, even if you change it later.
Every guest, beautifully answered
Begin with a design, or start free with the basics. Your link: rsvpea.co.uk/your-names.