In order to build a Power Bl dashboard for sales managers to track opportunities and send notifications and emails when a new sale closes that is greater than S1 million, you should configure:
A) alerts in Power Bl: You can set up alerts in Power Bl that will trigger when a specific condition is met. For example, you can set an alert to trigger when the value of a specific field in the "Opportunities" table exceeds $1 million.
E) a Power Automate flow: To send an email to the leadership team when an alert is triggered, you can create a Power Automate flow that is triggered by the Power Bl alert. The flow can then use the "Send an email" action to send an email to the leadership team with the necessary information about the sale that exceeded $1 million.
Reference:
https://docs.microsoft.com/en-us/power-bi/transform-model/desktop-alerts
https://docs.microsoft.com/en-us/power-platform/admin/alerts-overview