When we use portaladmin to login to /sigma/admin/ we see the following error in Identity Manager log
2021-04-03 06:49:23,257 ERROR [com.ca.iamframework.webservices.api.PortalUserResource] (default task-61) Cannot find user with loginId portaladmin: [facility=4 severity=3 reason=0 status=6 message=Unrecognized command]
Username not found in IM user store
at com.netegrity.webapp.authentication.ad.ActiveDirectoryAuthenticationModule.disambiguateUser(ActiveDirectoryAuthenticationModule.java:85) [user_console.jar:]
at com.ca.iamframework.webservices.util.AuthenticationUtil.disambiguateUser(AuthenticationUtil.java:519) [webservices.jar:]
at com.ca.iamframework.webservices.api.PortalUserResource.login(PortalUserResource.java:76) [portal-ws.jar:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_212]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_212]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_212]
at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_212]
...
Release : 14.3
Component : SIGMA-Identity Suite
With 14.3, we introduced the Administration module which allows all users (not just portaladmin but also connectors users) to login to /sigma/admin.
When the Administration module is given to everyone, the authentication is done against the relevant connector (IM/IG) and the credentials of that user.
This is why, we see the portaladmin message in IM, as verification is done first against the main connector and then, if user is not found, local verification is processed.
For this reason, the message is expected and by design
https://techdocs.broadcom.com/us/en/symantec-security-software/identity-security/identity-portal/14-3/administrating/administrating-ca-identity-portal/ca-identity-portal-administration/about-modules/administration-module.html