Part of the tracking of these Extra Items includes knowing where an Extra Item is at any point in time, and also allowing searching for availability of Extra Items in the same manner as you can search the availability of vehicles.
You are able to view a listing of any Extra Items, that have been tracked within RCM, but have been removed from RCM using the Deleted Items page. From this page you are able to see a summary listing of any bookings that the Extra Item was associated with.
RCM allows you to search for the availability of the Extra Items in the same manner that you can search for the availability of vehicles. The following article details the Extra Item Availability Report - Extra Item Availability
The Item Enquiry and Update screen allows you to search and update bookings which have Extra Items assigned to them. - Item Enquiry and Update
If you are unable to see these options for Extra Item Tracking in your RCM system, this might mean that your system has not been setup to have this Extra Item Tracking turned on. If this is the case, please contact RCM Support (support@rentalcarmanager.com) to have the functionality turned on.