You can now add manual annotations directly to Drilldown charts in Metrics Explorer. This lets you document notable moments in your data and see them again whenever the same metrics are viewed.
Click any data point on a Drilldown chart to add a custom annotation
Apply an annotation to the metric you clicked, or extend it to additional metrics
See annotation icons whenever a chart’s date range and metrics overlap with saved annotations
Edit existing annotations, including description, date, time, and associated metrics
Each annotation is tied to a point in time and one or more metrics. When you load a Drilldown chart that includes both, an annotation icon appears. Click the icon to view or expand the note. You can adjust the description, date, time, and metrics at any point.
Annotations help you connect changes in the data to events in the real world. For example, you can tag the day a feature shipped or note an outage that caused a traffic dip. These markers appear on charts whenever the same metrics are analyzed, so you never lose the context.