This report will list all Customer Units in your Blackpurl 

From the Blackpurl Header > Reporting > Report - Customer Units

The default columns and parameters is as per this screen shot and it will list all Customer Units that have been modified in the Last 7 days


You can change your parameters are any time by clicking on or click on to  select and/or deselect further columns

For further tips on reporting, please click on this link - Reporting Tips - Totals / Changing Columns / Changing Parameters / Exporting Search Results