How do I stop a stranger joining another table's QR order?

Use a system that locks the table session, checks the guest is inside, or issues a one-time code. Some providers do one or more of these.

• OrderIt locks a table session once it starts, and a friend who wants to join needs the host's approval.
• OrderIt's Super Privacy Mode blocks orders from guests who are not physically inside the restaurant.
• Petpooja sends an OTP to validate every order before the kitchen fires it.
• Okage issues a one-time QR code per party that is invalidated after payment.
• Ask any provider which of these it offers before you choose.