During the last START Movement Quarterly meeting last week we mentioned a tool to help you streamline guest access codes if you have a smart lock and a Smartthings hub. Once the app is set up you can, with literally no effort, program access codes for your STR guests from Airbnb, VRBO, Homeaway, and more using the the Rboys Rental Lock Automater app.
I have 5 interior smart Kwikset locks plus an outside Yale Real Living smart lock, and as soon as I get a booking on Airbnb the Rental Lock Automater app schedules all locks for which the guest will have access with the last 4 digits of their phone number. You can set how long before check-in the code is active, and how long after checkout before it expires. Once you have set it up you no longer need to worry about security risks from reusing codes or the hassle of manually changing codes in your locks. Just tell the guest in your welcome message that the access code is the last 4 digits of their phone number and you're done!
For details on this huge timesaver check out the rBoysapps link at https://www.rboyapps.com/RLA-FAQ.htm