Hi @safiranrd ,
Hi,
Please follow the below steps to trigger Power Automate Flow from Canvas Apps.
1. The trigger point of flow should be PowerApps (V2) as shown in below screenshot,

2. In Input parameters, Add parameters you want to pass from the Canvas Apps to Power Automate Flow.
3. Add your Power Automate Flow in the Canvas App.

4. add the below Fx formula on the onSelect Property of a button to trigger a flow.
ApproveLeaves.Run("test@gmail.com");
- Replace your Power Automate Flow Name with “ApproveLeaves”

5. Pass the Parameter in the Run function.
Thanks!
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