CAD allows customers to set up four different types of monitors: 1/ AWS service monitor to track spend across all deployed services, 2/ Linked account monitor(s) to track spend of individual, or group of, linked accounts, 3/ Cost category monitor(s) to track spend of different cost categories values, and 4/ Cost allocation tag monitor(s) to track spend of individual tag key-value pairs. An AWS service monitor will be applicable to all customers since it tracks and detects anomalies across any service they deploy. The other three are custom to each customer and it is difficult for us to predict what would be the right selection of linked accounts, cost categories, and cost allocation tags to monitor.