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A line chart connects data points into a continuous line, showing how a metric moves across an ordered breakdown. Line charts are the natural choice for tracking metrics over time.

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When to use a line chart

  • Trends over time — spend by day, conversions by week, impressions by hour.
  • Multiple metrics on shared axes — for example, Spend and Conversions plotted together to spot the relationship between the two.
  • Long time windows — line charts read well across many data points; a column chart with 90 daily bars gets cramped.
For side-by-side comparisons across a small set of categories, a column chart is easier to read.

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Configure a line chart

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Mandatory fields

1

Pick a data source

In the Data sources section, select the data source to include.
2

Pick a Y-axis metric

Click Edit on the Y-axis metric field to open the picker panel. Pick up to 20 metrics to make available in the widget’s dropdown, reorder them if needed, and set the active one shown by default. The active metric renders as the line series value — for example, Spend, Impressions, Conversions. New custom metrics can be created directly from the picker panel without leaving the chart widget. Multiple metrics can be plotted as separate lines on the same chart.
3

Pick an X-axis

Click Edit on the X-axis field to open the picker panel. Pick up to 20 breakdowns to make available in the widget’s dropdown, reorder them if needed, and set the active one shown by default. The active breakdown renders as the horizontal axis — for example, a time unit (such as Day, Week, Month, Quarter, or Year), which is what a line chart is best at showing. New custom breakdowns can be created directly from the picker panel without leaving the chart widget.Note: date breakdowns have per-connector lookback limits. See Breakdowns → Date breakdown limits.
4

Set the Group by

Click Edit on the Group by field to open the picker panel. Pick up to 20 breakdowns to make available in the widget’s dropdown, reorder them if needed, and set the active one shown by default. The active breakdown renders as the separate lines shown on the chart — for example, one line per Channel or one line per Campaign.Group by isn’t strictly required. Every Group by picker includes a No grouping option, which shows a single line of aggregated totals across the X-axis.
Widget changes save automatically when the settings panel closes. Persist changes to the dashboard by clicking Save dashboard.

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Optional fields

  • Widget filter — narrow the data feeding the widget. See Filters.
  • Period — override the dashboard’s date range. See Date ranges.
  • Hide metric value — hide items whose Ad Spend, Impressions, or Link Clicks meet a threshold. Two blocks are available: a preset “Value = 0” checkbox per metric, and a custom threshold block with an operator (default ≤) and value. Both can be combined.
  • Display settings — controls Number of items (All, 5, 10, 15, 20; default 10), Sort order, and a Hide “others” toggle for the aggregate residual.
  • Data labels — show the metric value on each item. Off by default.
  • Grid — toggle background gridlines.
  • Chart controls — toggle whether Chart controls render on this widget. On by default.

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Chart controls

Chart controls are toggled on or off per widget from the Chart controls switch in the widget settings panel. When off, Chart controls don’t render on the widget; when on, the dropdowns configured below appear on the widget. Some key settings can be updated directly from the widget header without opening the settings panel. The Chart controls on a line chart expose:
  • Chart type — a switcher on the left of the widget header to change to another chart type.
  • Y-axis — swap the vertical metric inline.
  • X-axis — swap the horizontal axis inline.
  • Group by — change the line grouping inline.
Changes made in the Chart controls aren’t saved automatically — click Save dashboard to persist them. Chart controls are read-only when viewing a shared dashboard. In shared dashboards, Chart controls show only the items selected in each field, matching what the dashboard owner configured.

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Comparison mode

Line charts render comparison values as a gray line across the chart. The comparison line only appears when both conditions are met:
  • The dashboard-level or widget-level Compare toggle is on.
  • The chart’s X-axis is a time unit.
The gray line represents the previous period’s total across the visible window. If the chart has a Group by (multiple colored lines), comparison ignores the grouping and plots only the aggregated total for the comparison window — so the comparison line is a single gray series, not one per group. For any non-time X-axis, no comparison renders.

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Time-window cap

Line charts cap the visible time window at 2 years — a series longer than 2 years is dropped from the render. For longer history, split the analysis into multiple line charts scoped to shorter windows, or use a table widget.

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Missing data points

For most metrics, a data point with no value on a given date renders as 0, so the line continues along the axis. Two metrics are exceptions: CPC and Optimized Budget render missing points as floating dots rather than zeroes — this avoids implying that CPC dropped to zero on a day with no impressions.

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Widget styling

Global widget style settings — font, border, background, and color themes — apply to every widget through the Dashboard style settings. On top of those, Line chart widgets have style options unique to this widget type:
  • Color type — toggle between Solid and Gradient for the line fill.
  • Data Label and Data Label Stroke — when data labels are enabled, both the label color (HEX) and the stroke color (HEX + opacity) are configurable in the Grid block.

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Troubleshooting

Confirm the Y-axis metric and X-axis produce data in the current date range. See Data not loading.
Line charts cap the visible window at 2 years. Narrow the dashboard-level or widget-level date range to fit inside a 2-year window.
For most metrics, missing values render as zero, which shows as the line touching the X-axis. If this is misleading, aggregate to a coarser X-axis such as Week or Month, or switch to CPC or Optimized Budget which render missing values as floating dots.

Column chart

Side-by-side comparisons across categories.

Combo chart

Overlay a line over bars for combined visualization.

Date ranges

Set the reporting window.