Adding subscriber by sepmd command fails with following error:
$ /opt/CA/AccessControl/bin/sepmd -s <PMDB> <subscriber>
Failed to subscribe <subscriber> to Policy Model <PMDB>:
No authorization to access the Policy Model.
The error shows that the user who runs sepmd command doesn't have admin authority on the target PMDB.
Run sepmd command by a user who has admin authority on the target PMDB.