Lesson 117 Power BI Custom Tooltips: Show Hidden Insights on Hover

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Want to give more context to your visuals without crowding your report? Power BI’s Custom Tooltips let you display detailed information when users hover over a data point — super useful for showing comparisons, trends, or extra KPIs.

🤔 What Are Custom Tooltips in Power BI?

A custom tooltip is a dedicated page in your report that appears when users hover over a visual. Unlike default tooltips (which show basic data), custom tooltips can include charts, images, KPIs, or even slicers.

It's like a mini report… inside a hover!

🛠️ How to Create a Custom Tooltip in Power BI

Step 1: Add a New Tooltip Page

• Create a new page in your report
• Go to the Visualizations pane → Format → Page Information
• Turn Tooltip to “On”

Step 2: Set Page Size to Tooltip

• Go to Page Size → Type → Tooltip
• Resize visuals and layout for a small popup

Step 3: Add Visuals

• Add whatever you want: line charts, KPIs, DAX-based measures, etc.

Step 4: Assign the Tooltip

• Go to the visual where you want it to appear
• In Visual → Tooltip → Type, select Report Page
• Choose the page you just created

Boom! Now when you hover, your tooltip page appears.

🎯 Example Use Cases

• ✅ Show trend line for selected sales bar
• ✅ Display customer satisfaction score when hovering over revenue
• ✅ Compare current vs previous year instantly
• ✅ Add a mini map when hovering over regions

💡 Power Tips

• Keep it clean — tooltips should be quick and clear
• Use transparent backgrounds for a cleaner feel
• Add dynamic content using DAX to personalize for each data point
• Combine with Bookmarks to add interactivity

⚠️ Limitations

• Tooltips don’t work on some custom visuals
• Only one tooltip per visual
• Size is limited — don’t overload it!

📧 Need help building the perfect tooltip page? 

Email us at support@virvijay.com — we’d love to help!

✅ Coming Up Next:

Power BI Row-Level Security (RLS): Control Who Sees What Data

We'll dive into how to restrict report data based on users — a must for enterprise-grade reports.

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