IAM Identity Center Identity Store adds ARN support
🔒 AWS IAM Identity Center's Identity Store APIs now accept ARNs for users, groups, group memberships, and identity stores wherever resource IDs were previously required. This additive change means existing integrations keep working while allowing callers to supply either resource IDs or full ARNs directly. Responses still return resource IDs and malformed or wrong-type ARNs result in a ValidationException. The feature is available in all Regions where IAM Identity Center is offered at no extra cost.
