CmdID / aws / aws sso-admin
aws sso-admin describe-application-assignment
Retrieves a direct assignment of a user or group to an application. AWS CLI reference
3 options Its page in the AWS CLI reference
Options
--application-arnSpecifies the ARN of the application.--principal-idAn identifier for an object in IAM Identity Center, such as a user or group.--principal-typeThe entity type for which the assignment will be created.