The remark can be retrieved from parameter USER in the job statement. The format is
DO REMARK=%%USERID[(startpos,length)]
DO REMARK=%%USERID[(
)]
DO REMARK2=%%USERID[(startpos,length)]
DO REMARK2=%%USERID[(
DO REMARK3=%%USERID[(startpos,length)]
DO REMARK3=%%USERID[(
where
DO REMARK: Decollating Parameter (decollating mission)