Edit users in IAM groups
Use IAM groups to apply the same permissions policies across multiple users at once. You can then add users to or remove users from an IAM group. This is useful as people enter and leave your organization.
Review policy access
Before you remove a group, use the group details page to review the members (IAM users) of the group, the policies attached to the group on the Permissions tab and review recent service-level activity using the Last Accessed tab. This helps prevent unintentionally removing access from a principal (person or application) who is using it. For more information about viewing last accessed information, see Refine permissions in AWS using last accessed information.