The AWS::CE::AnomalyMonitor resource is a Cost Explorer resource type that continuously inspects your account’s cost data for anomalies, based on MonitorType and MonitorSpecification .
The AWS::CE::AnomalySubscription resource (also referred to as an alert subscription) is a Cost Explorer resource type that sends notifications about specific anomalies that meet an alerting criteria defined by you.
The AWS::CE::CostCategory resource creates groupings of cost that you can use across products in the AWS Billing and Cost Management console, such as Cost Explorer and AWS Budgets.