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Understand the gray band and the dotted line on a KPI tile’s sparkline, and turn the anomaly display off for a tile.
A KPI tile shows a metric with a sparkline, a small line chart of the metric over time. Two visual cues can appear on the sparkline.

The gray band

The gray band shows the expected range for the metric. It appears over the most recent part of the sparkline, about the last 20%. A value that falls outside the band is unusual compared with the expected range, so it’s worth a closer look.

The dotted line at the end

The dotted line at the end of the sparkline marks the current period, which isn’t complete yet.

Turn anomalies off

In the tile’s chart configuration, turn off Show anomalies to hide the anomaly band and highlights for that tile. The setting doesn’t affect other tiles on the dashboard.
Last modified on November 13, 2026