The locking system administrator can send messages to phone key users from the management system. This requires runtime permission from the user (Android versions 12 and 13).

Messages can be, for example, general information sharing, additional info related to received keys, etc. Messaging in the app is one-way, which means that the app can receive admin messages from the management system, but you cannot reply to them. 

To view received messages:

1. Open the app
2. Press the Messages button to view received message

You can delete messages by pressing the trash can button on the top right corner of the messages view. Note: all messages will be deleted at once.