InfluxDB Operational Monitoring Template is a preconfigured collection of dashboards, tasks, alerts, Telegraf configurations, and more that helps users monitor their InfluxDB Cloud instance, successful time series operations, and control costs. The template consists of a bucket for cardinality data, a task to calculate cardinality every hour, and two dashboards: Task Summary Dashboard and Cardinality Explorer Dashboard. The Task Summary Dashboard provides information about task runs, successes, failures, and error rates, while the Cardinality Explorer Dashboard visualizes series cardinality per bucket, measurement, and tag. The template also includes an alert mechanism to notify users when their cardinality exceeds expected thresholds or when tasks fail. By applying this template, users can gain visibility into their instance size, manage resources and costs, and optimize their time series operations.