Hi Simon,

As a first step: Use SQL for joining the inventory (device) information with their history information.

SELECT 

 device.ComputerName

, corpunit.path      AS  CorporateUnit

, history.NewValue    AS  ApplicationInstalled

, history.OldValue    AS  ApplicationUninstalled

, history.HistoryDate

FROM [ComplianceComputer] device

JOIN [ComplianceHistory] history

ON history.ComplianceComputerID = device.ComplianceComputerID

LEFT JOIN [GroupEx]    corpunit

ON corpunit.GroupTypeID = 2

  AND corpunit.GroupExID  = device.BusinessUnitID

WHERE

   FieldName = 'SoftwareApplication'

Expose the results of this query as a report in the FNMS UI, and group or filter by department (CorporateUnit).

Hope this helps 😃 ?