Sparkline with Legend Present

Hi PrakashPalle 

This happens because Power BI sparklines depend on how your matrix is grouped. When your matrix already has a legend or separate fields like Year and Month in the columns, Power BI treats each of those combinations as a unique series. That’s why it ends up drawing multiple sparkline columns instead of just one. To get a single sparkline, try removing the legend or move it to the rows section so that all data rolls up together. Another good approach is to create a combined “Year-Month” column in your data model and use that for the sparkline’s axis , this helps Power BI recognize it as one continuous timeline. You can also make sure that your measure (like Actual or Sales) is used consistently without being split by multiple fields. Once you simplify the column grouping to one field, the matrix will automatically show a single, clean sparkline column per metric. It’s just how Power BI handles grouping logic internally.