This error message will display when there is no active m-Post license registered to this device's IMEI.
If you need to replace an existing license with a new device please see this article for using our Replace feature:
If you need an additional license activated, please contact Sales at email@example.com or by phone at +1 (845) 474-0033 ext. 3, have your device IMEI ready.
Activate Available License
If you have already signed a quote with our Sales team and would like to activate an available license, please contact Support at firstname.lastname@example.org or by phone +1 (845) 474-0033 ext. 2, have your device IMEI ready.