You’ll need to unpivot your date columns to get this working. The MAQ calendar visual expects a single date column, so your current structure won’t work as-is. I had the same issue with project timelines and ended up transforming my data in Power Query. Basically, duplicate each row: one for StartDate and one for EndDate, then add a column to identify the date type. So Item1 becomes two rows: one with 01/15/24 tagged as ‘Start’ and another with 02/20/24 tagged as ‘End’. This gives you one date column for the visual but you can still distinguish between date types using color coding or other visual elements. The transformation is pretty straightforward in Power Query using the unpivot function, though you might need some cleanup depending on your specific setup.