Hi @Mélanie-and-Andrew0,
I will try to help:
1- On the Airbnb App on your mobile phone go to the “Listings Section” on the bottom of the main screen.
2- Click on the listing you want to edit.
3- Scroll down into the GUEST RESOURCES section and click on “Checkin instructions”
4- Click the 3 dots in the upper right corner. Select the checkin method that better fits your needs (Smart lock, Keypad, Lockbox, Building Staff, etc)
5- Start creating your Checkin Instructions by adding steps. In each step you can add a picture and also a written explanation below. There is a “See Sample Guide” icon that you can also check and use it as reference.
6- Once finished, you can click on “Preview” to see how it looks and then click on “Publish” to make it available.
7- Because Airbnb eliminated the “key icon” to share checkin instructions via messaging , you can create your CHECKIN link.
8- Open your listing on a browser (Chrome, Internet Explorer, etc)
9-Look for an 8 digit number on the URL after the wording rooms/
https://www.airbnb.com/rooms/xxxxxxxx. That 8 digit number is your Listing number.
10-Copy/paste your listing number and then add it at the end of the link below after the wording “guide/“
https://www.airbnb.com/reservation/check-in-guide/XxxxxxX
11- Once you create the link, test it by yourself to be sure there are no errors. You can then share this link with your guests via messaging and they will be able to click on it and follow the instructions.
Hope this helps 🙂