DFS3655 USER SIGNED ON, /EXIT USER COMMAND INVALID

Explanation
 In the /EXIT command with only
the CONV and USER keywords (the NODE is not specified), the specified
user is signed on. This format of the /EXIT command
is valid only when the user is not signed on.

System action
 The command is ignored.

Operator response
 Reenter the /EXIT command
with the NODE keyword.