DAX User-Defined Functions Are Now GA — Stop Copy-Pasting Measure Logic
DAX User-Defined Functions (UDFs) reached general availability in Power BI Desktop and the Power BI Service in the June 2026 release. You can now define…
DAX User-Defined Functions (UDFs) reached general availability in Power BI Desktop and the Power BI Service in the June 2026 release. You can now define a reusable, parameterized DAX function once in your semantic model and call it from any measure — instead of copy-pasting the same DIVIDE/CALCULATE pattern into every YoY, MoM, or margin measure you write.
Sources
- Using DAX user-defined functions — Power BI (Microsoft Learn)
- Use DAX user-defined functions — DAX (Microsoft Learn)
- Introducing user-defined functions in DAX (SQLBI)
- Understanding parameter types in DAX user-defined functions (SQLBI)
- DAX User-Defined Functions (DAX UDFs) for Power BI in simple terms (Tabular Editor)
- DAXLib — open-source repository of model-independent DAX UDFs