This window displays the identities that are used in External Files. If the file template that is used on a transaction has any detail columns where Control ID is selected, then during execution of an input file the following occurs. The values in the columns selected as Control ID columns will, for each record type, be packed to an identity that is used to make sure that this identity is not executed again in a future load.
Note that information in this window will not be affected by removing referenced external transaction identities.