How to Show Dependencies in Microsoft Project

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Follow these steps: 

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1. Open your Microsoft Project and go to the 'Task' tab.
2. Click and select the tasks you want to establish dependencies between. Hold Ctrl to select multiple non-adjacent tasks.
3. With tasks selected, click the "Link Tasks" button in the Schedule group. This creates a Finish-to-Start dependency by default.
4. An arrow appears between the tasks, visually representing their dependency relationship. You can double-click this arrow to modify the dependency type if needed.