Seems to be a very good property Lock system.
It asks you to insert a special code into the lock when you check out. This alerts the cleaners and management.
Says that OR is integrated, but I don't see how on OR to set that up.
Lynx can be connected using iCals but they do not have an API integration.
Once you link the iCals, you will start seeing reservations inside Lynx as they sync. However, it can take up to an hour for the first full sync to complete. iCal links will bring over the check-in/check out dates of the reservations.
If and when Lynx does become an official partner with an API integration, this will allow reservations to sync over instantaneously. This also allows for other information to transfer over like the guest information. It's completely up to Lynx how this will work though, and it appears they do not plan to build this full integration at the current time.
I recommend reaching out directly to Lynx for any further questions. Plus that way they know someone else is wanting the API integration.
Here is the support article from their site with setup instructions for OwnerRez users: https://support.getlynx.co/hc/en-us/articles/360058099612