A virtual device is used when a model is deployed in test or simulation mode. See also
Deploying a model.
By default, the virtual devices are kept for 30 days. If you want to change this default, you need to change the tenant options. That is, you need to send a
POST /tenant/options request.
For detailed information, see the information on tenants in the Reference guide at https://www.cumulocity.com/guides/. For example, specify the following to set the retention period for the virtual devices to 1 day:
Virtual devices are not shown in the Device Management application. Use REST operations
as described in the Reference guide at https://www.cumulocity.com/guides/ to find these entries.