Go to reports by clicking on the upper left corner (it might say Content)
Click Add, and select Unit Report
Name the report
Configure Filter Criteria as follows: Select Field: Last Connection, Select Operation: Before, Time/Calendar Field: 0 days ago (or “1 day ago”, “2 days ago”, etc.)
Run Report
Save Report
To email the report, click Schedule
Choose email frequency in Choose Schedule Type
Add a time
Add email recipients
Note: “0 days ago” will return the units that have not connected since today. “1 day ago” will give the units that have not connected since two days ago, and so on.