Understanding The “Unable to save the changes since the new dataset of size” Error In Power BI If your Power BI dataset is too large you may run into errors when you refresh. Published on: November 07, 2022 Learn more Chris Webb's BI Blog Chris Webb's BI Blog A blog about Power BI, SQL Server Analysis Services (Multidimensional and Tabular), MDX, DAX, Power Pivot, Power Query, M, Power Map and Excel for BI Share post: