Flow chart

Flow charts show how values move through stages or categories.

• Sankey displays flows between multiple levels.

• Funnel shows sequential drop-offs through a process.

Sankey chart

A Sankey chart shows how values flow across multiple levels, with line thickness representing size.

Data shape Your data must be in wide format: one column per level, plus a numeric column for the flow size. Each row describes one path through the levels.

| Level1\_Channel | Level2\_Action | Level3\_Outcome | Value |
| --------------- | -------------- | --------------- | ----- |
| Search          | Browse         | Cart            | 1200  |
| Search          | Signup         | Purchase        | 900   |
| Social          | Cart           | Dropoff         | 350   |

Mapping options

• Level → Add each level column in order (e.g. Level1_Channel, Level2_Action, Level3_Outcome).

• Weight → Numeric column for flow size (e.g. Value).

Tips

• At least two Level columns are required; more levels extend the flow.

• If your data has levels stacked in a single column (long format), reshape it so each stage gets its own column.

Funnel chart

A Funnel chart shows how values drop off across sequential stages.

Data shape Your data should be in long format: one column for the stage name and one column for the measure.

Mapping options

• X → Measure column for stage size (e.g. Value).

• Y → Dimension column for stage names (e.g. Stage).

• Color → Dimension to split each stage into sub-groups.

• Label → Annotates stages with text.

Tips

• Works best with fewer than 6–7 stages.

• Values should decrease progressively—funnels are less clear if the sequence jumps up and down.

• Adding Color can highlight different groups moving through the same steps.