ProSankey

ProSankey is a professional Sankey flow diagram custom visual for Microsoft Power BI — built for analysts, BI developers, and business leaders who need to visualize multi-level flows without fighting their tools.

Drop in your data columns, bind them to levels, and ProSankey draws the entire flow automatically — no pre-formatting as source-target pairs required. Supports Path Mode (N-level columns), Graph Mode (explicit source → target), and Hybrid Mode combining both.

Key Features

• Multi-mode input — Path Mode for N-level column binding (zero data prep), Graph Mode for explicit edge lists, Hybrid Mode for both at once
• Loop-safe layout — the only Power BI Sankey visual that correctly handles circular flows; back-edges render as curved arcs above the diagram without breaking the layout
• Path-level click-to-trace — click any flow to highlight its full upstream and downstream path, Google Analytics Behavior Flow style
• Flow labels — show value or percentage directly on flow paths (not just in tooltips); configurable font, size, color, and minimum-width threshold
• Auto-bucket "Other" — collapse low-volume flows into an aggregated "Other" node to keep diagrams readable; click Other to drill in
• Manual node ordering — override the default weight-based node sort to preserve intentional business layouts
• Edge Type styling — map a category column to distinct colors, dash patterns, and opacities per edge type (up to 8 rules)
• Up to 16 levels — bind up to 16 categorical columns as flow levels (Levels 4–16 require Pro)
• Power BI native integration — cross-filtering, bookmarks, dark theme, high-contrast mode, Rendering Events API for PDF/PNG export

Who Uses ProSankey

Financial analysts building P&L attribution and cost waterfall flows; product and growth analysts tracing customer journeys and conversion funnels; operations analysts mapping supply chains and process flows; BI developers embedding flow diagrams in enterprise Power BI dashboards.

Common Use Cases

• Customer journey and conversion funnel analysis
• Revenue attribution across channels and segments
• Supply chain and logistics flow mapping
• HR movement, headcount flow, and attrition analysis
• Financial waterfall and budget allocation diagrams
• Process optimization and bottleneck identification

ProSankey is Microsoft-certified, makes no external service calls, and is safe for organisation-wide deployment in Power BI Service.