Multiple device configuration application

A user interface (UI) of a device configuration application includes a collection view window of device representations with each representation including a screen image that is representative of the configuration state of the corresponding device. The device configuration application UI allows for searching the devices based on their configuration states, and for configuring the devices based on a set of configuration templates displayed in a collection view window. The UI allows for customizing the configuration templates in a device-independent manner, while allowing the user to add a set of configuration rules to each template. The device configuration application provides a method for updating the actual lock screen image of devices by displaying a device identifier on the lock screen. The format of such device identifier includes a device-identifying text string and/or machine-readable code. Displaying a device identifier allows for a more efficient way of cataloging, tracking, and/or configuring devices.