Reference stack outputs across accounts and Regions with AWS CloudFormation and CDK

This article announces AWS CloudFormation's new Fn::GetStackOutput intrinsic function for referencing stack outputs across accounts and Regions.

• Fn::GetStackOutput enables direct cross-account and cross-Region stack output references in CloudFormation templates
• Simplifies multi-account and multi-Region workload provisioning and management
• Eliminates deployment deadlocks when restructuring cross-stack dependencies in CDK apps
• Reduces manual coordination by automatically assuming specified IAM roles for cross-account access
• CDK applications automatically use this function for cross-account and cross-Region references
• Removes need for custom resources and SSM parameters in previous approaches
• Available in all AWS Regions where CloudFormation is supported

This feature streamlines infrastructure value sharing across AWS accounts and Regions, reducing configuration drift and manual coordination overhead.