Specify the 1-8 character RACF user or group name, and select either Read or Update authority. When you are finished, click OK.
For group name, the name must begin with A - Z, #, $ , or @.
For TSO users who are defined to RACF, the user ID cannot exceed seven characters and must begin with A - Z, #, $, or @.
Valid Values: A - Z, #, $, @, or 0 - 9