In SPD Server, you can
submit operator commands to a user after you select 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 nonlocking user proxy, and you submit an OPER command,
you get the following message:
ERROR: Specified user <userID> with pid <Process-ID> no longer exists.
Both of these messages
indicate that the user that was selected is no longer valid.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.