This parameter contains the No Notices Option select character that is present on the logon panel. You can use this parameter to supply a different No Notices Option select parameter to the logon panel. The maximum length of this field is one byte. The only allowable values are the character 'S' and ' '. The session receives broadcast messages from TSO/E during logon processing if this option is ' '. The session does not receive broadcast messages from TSO/E during logon processing if this option is 'S'.