We treat returning guests a little bit differently, as we assume you have already developed a relationship with them. For example, some automated responses might be redundant (and sound unnatural) to them since they have already received the response before.
For that reason, by default, we do not send booking confirmation to returning guests (on Airbnb).
However, if you want to send booking confirmation messages (triggered by the "New reservation" messaging rule) to all your guests, you can activate it in the account settings.
To send booking confirmation messages to returning guests:
Go to Settings.
Click on Preferences.
Click on Guest experience on the sidebar.
Use the toggle to activate Send booking confirmation to returning guests.
Don't forget to Save changes.
How To Use Custom Codes To Acknowledge Returning Guests
A specific custom code condition, "guest is/is not a returning guest", can be used to personalise your messages to welcome those returning guests back!
If you allow messages to be sent to returning guests, as described above, then you can include two different messages in you messaging rule, which deal with each situation; guest being either a returning one or not.
Read more about custom codes here.
Booking.com returning guests
"Returning guest" features do not work for Booking.com reservations.
Because of how guest profiles are created and sent to Hospitable from Booking.com for each reservation, no two guest profiles look the same, or share the same guest ID. This means Hospitable cannot know when one guest profile is that of a guest who has already booked with you through Booking.com.