*Can be automatically set to handy numbers such as the last 4 digits of the guest's phone number.
*Can be updated or deleted.
'''Limitations'''
*Requires the lock to be connected to the internet.
*Passcodes must be unique in each lock. For example, you cannot have two bookings with the passcode "1234" in the same lock.
== Offline passcode ==
'''Advantages'''
*The lock does not need to be connected to the internet.
'''Limitations'''
*Cannot be updated or deleted.
*The passcode will between 6-9 digits and cannot be cusomisedcustomised.
*Passcodes must be unique in each lock. For example, you cannot have two bookings with the passcode "1234" in the same lock.
*The start and end times must be on the hour, for example a start time of 9:20 will actually start at 9:00.
*Must be used at least once within 24 hours of their start times, otherwise they will become invalid.
*Multiple offline passcodes in the same lock cannot share the same start and end time, this includes deleted passcodes.
*A deleted passcode cannot be created again with the same start and end time.
= Limitations =