The first time a device connects to the DME server, a "user name" is assigned to the device. DME creates user names sequentially - "DME0001", "DME0002", etc. For Windows Mobile users, the information in the device's Owner information field will be used as user name, if available.
In the Devices tab, the Basic MDM "users" are shown as wearing white shirts:
If the setting Device allowed to switch user is enabled on the server (see Authentication), the user name of the device can be changed by the user of the device, and the new name will then be synchronized to the server. If the setting is disabled, only the DME administrator can change the user name. He or she can do this by clicking the user icon and changing the name (if a device is assigned to the user):
Clicking OK changes the user name. The user name is updated on the client at the next sync. For more information about changing users, see Switching users.