AWS::SSO::Instance
"IAM Identity Center" is the successor to "AWS Single Sign-On" (SSO)
- Log once and have
access to multiple accounts. Allow access to multiple account at once - Allows centralized auditing with Cloudtrail
- You can create only one instance per account and across all AWS Regions.

IdPs
- SAML 2.0
- AD
- ...
SSO vs. AssumeRoleWithSAML

Properties
Type: AWS::SSO::Instance
Properties:
Name: String
Tags:
- Tag