Access and smart locks
A unique code per stay.Sent by itself, on time.
BnBFlow connects to the smart locks you already use, from makers such as TTLock, Nuki or Tuya; if you have another model, tell us and we connect it. Every booking gets a unique code (created automatically on TTLock and Nuki; on Tuya, the temporary code is created from the app, with the stay dates), which the guest receives automatically on every connected channel: WhatsApp, the booking platform’s messages, email and the stay page. The code is active only between check-in and check-out, for bookings from any channel.
Message us on WhatsApp- A new code for every stay
- Active only during the stay
- From any channel
01What the guest sees
The code, on the stay page. And on WhatsApp.
This is how the guest gets access: on the stay page, with the code, the door and the time it is active, and in the WhatsApp message sent after the check-in form. No app to download, no account.

Access, on the stay pageThe code in large digits, with the # key, the doors it opens and the time it is active. Below, the way to the door, in photos. The code, on WhatsAppAfter the check-in form: arrival, departure, the code and the link to the stay page, with your name and phone number.
02How it works
The booking comes in. The code is ready.
For every booking, BnBFlow creates the code on the lock, for the dates of the stay. The guest receives it on arrival day, and at check-out the code expires by itself.
- Code created automatically, valid from check-in time to check-out
- Sent on every connected channel and on the stay page
- Optionally: access goes out only once the registration form is complete
- Several doors per property (building entrance and apartment)
- TTLock
- Nuki
- Tuya
- + other models, on request
03FAQ
About locks and codes.
Using another lock? Message us — we’re open to integrations and reply the same business day, the next one at the latest.
Message us on WhatsAppWhich smart lock works with Airbnb and sends the code by itself?
Your smart lock, connected to BnBFlow: from makers such as TTLock, Nuki or Tuya, and if you have another model, tell us and we connect it. For every Airbnb booking (or one from any other channel) you get a unique code — created automatically on TTLock and Nuki, from the app on Tuya — sent to the guest automatically and active only for the stay.
Does it work for Booking.com and direct bookings?
Yes. A code is created for every booking, whatever the channel: Airbnb, Booking.com, your website or a booking added by hand.
Can I send the code only after online check-in?
Yes. You can release access only once the guest has completed and signed the registration form.
I have another lock model. Will it work?
Tell us which lock you have and we look together at how to connect it: we are open to integrations. TTLock, Nuki and Tuya are examples, not a closed list.
How much is the lock module?
Smart Lock is an optional module at €4.99 per unit per month, on any plan.
Self check-in
Guests let themselves in. You stop waiting at the door.
Tell us which locks you have or plan to install. We show you access for your guests and agree together on how you start.