https://www.m365.fm/entity/dax-user-defined-functions/DAX user-defined functions let modelers package DAX logic once and reuse it like a built-in function in measures, calculated columns and other functions.enhttps://www.m365.fm/community/u/mirko-p/blog/demystifying-dax-udfs-val-vs-expr-explained/https://www.m365.fm/community/u/mirko-p/blog/demystifying-dax-udfs-val-vs-expr-explained/Fri, 28 Aug 2026 14:28:46 -0000articleWelcome back to the podcast companion blog! In our latest episode, we took a deep dive into the powerful world of DAX User-Defined Functions (UDFs). If you have bee…https://www.m365.fm/show/episodes/dax-udf-parameter-modes-expr-vs-val/https://www.m365.fm/show/episodes/dax-udf-parameter-modes-expr-vs-val/Tue, 18 Nov 2025 00:00:00 -0000episodeYou thought VAL vs EXPR was harmless syntax sugar. In reality, it decides when your metrics are evaluated, which means the same function, same arguments can return a completely different “truth” — clean visuals, perfect totals, and numbers that are…