What is an access code? 

An access code is a pin code to unlock your smart locks. There are two different types of access codes: one-time access codes and weekly repeating access codes.  

One-time access codes can only be used once, on a specific date, and within a given time frame. The access code will expire after one use.  

Weekly repeating access codes are set to occur on the same day of each repeating week, within a specified time frame. It does not expire until you delete it.