How smart lock codes are shared with guests

Setting up a connected smart lock makes check-in easier and more secure for both you and your guests.

How smart lock codes are shared with guests

• When you connect a smart lock to your Airbnb listing, every new guest receives a unique, automatically generated 4-digit code.
• This code is sent to them as soon as their booking is confirmed.
• For guests who booked before you connected the smart lock, they will receive their code—and a message explaining the updated check-in method—as soon as you add the smart lock to your listing.
• Codes are shared with guests before they arrive, but only become active at check-in time and expire after checkout.

How guests find their code

• Guests receive their code in their Airbnb confirmation email.
• They also get reminder emails with the code 8 days and 2 days before check-in.
• If guests have enabled SMS or app notifications, they’ll receive a notification with the code on the day of check-in.
• The code is always visible in the guest’s Trips tab, along with your property’s address and the check-in and checkout times.
• The trip guide also includes a visual of your lock’s keypad, so guests know exactly how to use their code.

Sharing codes with additional guests

• If your guest adds other travelers to their reservation, everyone on the booking receives the same door code.
• Each added guest will see the code in their Trips tab and in reminder emails, if applicable.

Sharing codes through Airbnb messages

• You can always share a guest’s code in the message thread or by other means (like SMS or email).
• You can use the “entry code” details in scheduled messages or quick replies. This automatically fills in each guest’s unique code for their stay.
• If you need to look up a guest’s code to share it manually, you can find out how to find their smart lock code.