Hi @OsmandFernando,
I assume that you are trying to submit data from PowerApps to SharePoint list, and you want to send an approval email when an item is created in the list.
And how do you save the record to the list? Are you using EditForms in the app?
If yes, I assume that when you click the button, the data would be saved to the list. So you could try to remove the PowerApps button trigger from flow, use the trigger “When an item is created” directly. Then when the button on PowerApps clicked, data will be saved to the list, then the flow would be triggered.
Please take a try with it on your side.
Best regards,
Mabel Mao