RACF® processing has determined that a command cannot be directed to the requested user and node because an error occurred while attempting to retrieve user ID association information for the command issuer. This message is accompanied by messages IRRT003I, IRRT004I, IRRT005I, or IRRT006I, which provide a more detailed analysis of the error. Refer to these messages for further details. This message is sent to the user's TSO terminal.