Enable Dynamic Column Headers in Matrix Visual (Context-Aware Labels)

Hi Haroldhngn 

What you’re asking for isn’t currently supported in Microsoft Power BI—and it’s not an oversight, it’s a limitation of how the Matrix visual is architected: column headers must come from columns (metadata), not measures (runtime evaluation), so truly dynamic headers driven by DAX measures aren’t possible. The practical workaround is to shift the logic from measures to a column-based approach, typically by creating a disconnected table (e.g., “Curr”, “Prev”), mapping those to actual dates using calculation logic (via measures or calculation groups if you’re using Tabular Editor), and then exposing a formatted column (like Month-Year) as the header instead of static labels; alternatively, you can use Field Parameters to swap columns dynamically, though that still won’t fully mimic measure-driven headers. The blunt reality: if you stick to pure measures, you’re stuck—so you need to redesign the model slightly to push header logic into columns, not calculations.