In SPD
Server, you can submit operator commands to a user after selecting
the user with the SET USER or SET USER/RECORD command. However, user
sessions are finite. The user that you select with SET USER or SET
USER/RECORD might be unavailable when the user ends the SAS session,
or disconnects from a LIBNAME and the user proxy. If you submit an
OPER command to a user that is no longer in session, or to a user
that has ended a locking user proxy, you get the following message:
ERROR: Specified locking user no longer exists.
If the
disconnected user used a non-locking user proxy, and you submit an
OPER command, you get the following message:
ERROR: Specified user <userID> with pid <Process-ID> no longer exists.
Either
of these messages indicates that the user that was selected is no
longer valid. In this case, you must use SET USER or SET USER/RECORD
to select a different user.