Keytreasure displays invalid users.

Unbound information. Keytreasure app is a community service application. The software can help users swipe their cards to take the elevator, property notification, water and electricity notification, living payment and so on. And indicate that the invalid user is the reason for the unbound information. It needs to bind the owner's personal information to be used normally, and the software can also let the property master the frequency of use of each elevator.