22-25 April 2026 
User-Defined Functions (UDFs) in Power BI: overview and applications
Proposed session for SQLBits 2026TL; DR
In this session, User-Defined Functions (UDFs) will be explained and applied to real business cases, also going into the difference between model dependent and model independent UDFs
Session Details
User-Defined Functions (UDFs) allow the designer to define calculations in a function in DAX that can be re-used in other calculations without copying and pasting the related DAX code. This is a total change of prespective in Power BI that will save time and DAX maintainance overheads and open a new range of possibilities for the designer. In this session several examples will be shown, while the functionality will be analyzed in detail, all in practical terms.
3 things you'll get out of this session
-Understand the purpose of UDFs
-Understand how to create and apply them to your model
-Understand how to make them usable in other semantic models in your corporation
