"CloudTrail provides event history of your AWS account activity, including actions taken through the AWS Management Console, AWS SDKs, command line tools, and other AWS services. This event history simplifies security analysis, resource change tracking, and troubleshooting."

AWS description

HmC with AWS clouds now allows users for a fee to enable detailed auditing of all actions occuring within a enabled cloud and all child cloudspaces. Please contact support to enable this feature on your account.