As far as the HCM SsaS is concerned, I'm having trouble finding any documentation on what kind of events are logged for security reasons (for example access logs, group policy modifications etc). Are those information logged? If so where can I find a list of events/logs topologies? Are these log files available to clients? If so, where are they stored? Is there a repository, a logging service that can provide a unified view on security events? All I can find is OCI Logging, but it looks like a iaas service and I'm not sure is available in saas subscription.