You can set an alert to trigger only when a defined X number of the alert metrics are included in an anomaly.
To do this, access the alert settings (either through the Alert Management page or by creating a new alert), click on Show more conditions, and select the Number of metrics in an anomaly option switch from the displayed list of options. As shown below, you can define the minimum number of metrics in an anomaly:
Note that the number or percent of metrics counted is from the alert configuration metrics, and not the anomaly.
Use Case Example
An e-commerce company wants to get alerted only if there is a drop in revenue, but only if it was detected for at least 10% of its products (every product revenue is a different metric).