Yes , if you use Erik’s lock manager app & device type you can have codes expire after x number of uses, only work during certain hours etc etc. Don’t let the " Beta" scare you, I’ve been using his previous lock manager with no issues since 2015. He actually asked why I hadn’t updated the app and I simply replied the original has always worked and saw no reason to change anything. Big difference with the new one is you can add multiple locks to a single app instead of having a separate manager for each lock.