Configure a delegated administrator account for the organization. Create an AWS CloudFormation template that contains the Lambda function. Use CloudFormation StackSets to deploy the CloudFormation template from the delegated administrator account to all the member accounts in the organization. Create an Amazon EventBridge event bus in the delegated administrator account to invoke the Lambda function in each member account every 30 minutes.

Create a cross-account IAM role in the organization's member accounts. Attach the AWSLambda_FullAccess policy and the AWSCloudFormationFullAccess policy to the role. Create an AWS CloudFormation template that contains the Lambda function and an Amazon EventBridge scheduled rule to invoke the Lambda function every 30 minutes. Create a custom script in the organization’s management account that assumes the role and deploys the CloudFormation template to the member accounts.

Configure a delegated administrator account for the organization. Create an AWS CloudFormation template that contains the Lambda function and an Amazon EventBridge scheduled rule to invoke the Lambda function every 30 minutes. Use CloudFormation StackSets to deploy the CloudFormation template from the delegated administrator account to all the member accounts in the organization

Create a cross-account IAM role in the organization's member accounts. Attach the AmazonS3FullAccess policy and the AWSCodeDeployDeployerAccess policy to the role. Use AWS CodeDeploy to assume the role to deploy the Lambda function from the organization's management account. Configure an Amazon EventBridge scheduled rule in the member accounts to invoke the Lambda function every 30 minutes.