In order to view the inventory history for an inventoried service number, Application > CostGuard Client > Inventory Management > Service Number Inventory > Service Numbers > View History must be enabled in your Permission Profile.
To view the inventory history for an inventoried service number:
In the Service Number Search Results window, right-click the service number and select View History.
OR
In the Edit Inventoried Service Number window, click the Actions button and select View History.
This displays the Service Number Inventory History window. The window's title bar identifies the selected service number and the inventory to which it belongs (in parenthesis).

The Service Number Inventory History window provides the following information for each change made to the service number:
Change Date
Date and time the inventoried service number was modified.
Inventory Status
Inventory status assigned to the service number following this modification.
NRUF Category
NRUF category assigned to the service number following this modification.
Status Change Date
Date and time of the last change to the service number's inventory status.
Available Date
Available date and time assigned to the service number following this modification.
Account Number
Customer account number, if any, assigned to the service number following this modification.
User Name
User ID assigned to the user that made this modification.
Close this window to return to the window from which you requested this function (Service Number Search Results window or Edit Inventoried Service Number window).