Announcing Amazon CloudWatch cross account alarms

Amazon CloudWatch announces cross account alarms, a new feature that enables customers to set alerts and take actions based on changes to metrics in other AWS accounts. Cross account alarms provide alerting based on trends in metrics in different AWS accounts and can be used in combination with existing cross account dashboards to setup operational visibility in a centralized monitoring account. With cross account alarms, you can be alerted when a trending metric in a different AWS account indicates that further investigation is required before the trend starts to cause operational issues or impacts the end user experience.

Source:: Amazon AWS