What is the purpose of adding "Tooltips" in Power BI visuals?

The purpose of adding "Tooltips" in Power BI visuals is primarily to provide additional context or information when a user hovers over specific elements in a visual. Tooltips enhance user experience by delivering crucial insights without overcrowding the visual itself. For instance, if a chart shows sales data, hovering over a data point can reveal detailed metrics like percentage change, targets, or related time periods that would otherwise clutter the visual if included directly.

This contextual information helps users understand the data better and make more informed decisions based on what they see. By presenting data in a clean and interactive manner, tooltips enhance the overall effectiveness of data visualization in Power BI.