AWS CloudFormation StackSets introduces automatic deployments across accounts and regions through AWS Organizations
AWS CloudFormation StackSets announces new automation features to streamline deployments of resources to multiple accounts and regions through AWS Organizations. With this launch, you can use StackSets to centrally manage deployments to the accounts in one or more organizational units (OUs) or all of the accounts in your organization. You will also be able to enable automatic deployments to any new accounts added to your organization or OUs. The permissions needed to deploy across accounts will automatically be taken care of by the StackSets service.
Source:: Amazon AWS