Which AWS service or feature identifies whether an Amazon S3 bucket or an IAM role has been shared with an external entity?

Explanations:

AWS Service Catalog is used for managing catalogs of IT services but does not analyze access.

AWS Systems Manager is focused on managing AWS resources and automation, not access analysis.

AWS IAM Access Analyzer identifies resources shared with external entities, such as S3 buckets and IAM roles.

AWS Organizations is for managing multiple AWS accounts, not for analyzing shared resource access.