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Tooltips appear when a user hovers over a data point in a chart. By default, Cube automatically populates the tooltip with all fields mapped to chart channels. You can customize which fields are shown and in what order.

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Default behavior

When a chart is first created, all fields assigned to the chart (X, Y, color, size) are included in the tooltip automatically. The tooltip is enabled by default on all Vega-based chart types (bar, line, area, scatter, heatmap, boxplot) and on map charts.

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Configuring tooltip fields

Open the Fields tab of the chart configuration panel. The Tooltip section shows the list of fields currently included in the tooltip.
ActionHow
Add a fieldDrag a field from Available fields into the Tooltip slot
Remove a fieldClick the × on a field token in the Tooltip list
Reorder fieldsDrag field tokens within the Tooltip list

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Disabling tooltips

To turn off tooltips entirely, remove all fields from the Tooltip slot. When the Tooltip slot is empty, no tooltip is shown on hover.

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Tooltip behavior on stacked charts

On stacked bar charts, the tooltip is scoped to the individual stack segment under the cursor — it shows the value for that specific series at that X position, not the total stack value. To display the stack total, use data labels with the Simple totals option.