New listings are imported as "disabled" by default. This is so users are not charged for listings unless they enable them.
To enable a listing so that Host Tools can send messages, set smart lock codes, or set availability and pricing, follow these steps:
Click on your profile photo in the upper right-hand corner.
Click on "Settings"
Scroll down to find the listing you want to enable and click the "Settings" button next to it.
Check the box next to "Enable Listing"
Click "Save"