AWS IAM Identity Center (successor to AWS Single Sign-On) helps you securely create or connect your workforce identities and manage their access centrally across AWS accounts and applications. IAM Identity Center is the recommended approach for workforce authentication and authorization on AWS for organizations of any size and type. Create or connect your workforce identities only once for use across AWS. Centrally manage your workforce access to multiple AWS accounts. Assign user permissions based on common job functions or user attributes. Provide your workforce single sign-on access to cloud applications.