How to Add Drill-Down in Power BI

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Here's the full, simple guide:

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1. Navigate to your desired report where you want to add a drill-down.
2. Go to the 'Data' pane and enable the 'Date Hierarchy'.
3. Click on the 'Visualizations' pane.
4. Choose a visual that supports drill-down.
5. Click the visual. In the top-right corner of the visual, you'll see 4 drill options. Select the 'Drill Down' option with a forked arrow down symbol.
6. That's it! You have successfully activated the drill-down in Power BI.