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Power BI Deep-Dives
Technical content for Power BI analysts and custom-visual developers — tutorials, error fixes, honest tool comparisons. No marketing fluff, working code, straightforward answers.
Each post is structured to answer one specific question completely: read the TL;DR at the top, skim the section headings, drop into code examples. Every post is written by people who actually build Power BI custom visuals for a living.
Tutorial · April 23, 2026
How to Build a Sankey Diagram in Power BI (2026)
Three ways to add a Sankey diagram to Power BI: AppSource marketplace, Deneb + Vega-Lite, or AI-generated custom visual. Working code and data shapes for each.
Troubleshooting · April 23, 2026
pbiviz Build Errors: 12 Common Fixes That Actually Work
The pbiviz CLI errors most Power BI custom visual developers hit, with the specific fixes for each. UUID collisions, apiVersion mismatches, D3 version gotchas, more.
Comparison · April 23, 2026
Power BI Custom Visuals Without Per-User Subscriptions (2026)
Four ways to get advanced Power BI custom visuals without paying per seat: AppSource free tier, Deneb, Charticulator, and VizForge credits. Honest comparison.