New Z/OS Agent installation. When starting any job of type AE, AWA immediately reports "U02005046 It was not possible to start job LCC.TEST.OS390_TYP2.JOBS. Invalid User ID 'UC4USER'!"
Release : 21.0.4
In agent ini file , set askracf = 1 or askracf = 0 and test the job . Also check agent variable section in below mentioned link.
https://docs.automic.com/documentation/webhelp/english/ALL/components/DOCU/21.0.4/Automic%20Automation%20Guides/Content/AWA/Admin/inifiles/admin_ini_agent_zos.htm?Highlight=z%2Fos