Alerts can only be sent to yourself.
The workaround would be for you to make an email group, assign users to the email group, then make a quicksight user with that email group and add the alert to that email group.
Alerts can only be sent to yourself.
The workaround would be for you to make an email group, assign users to the email group, then make a quicksight user with that email group and add the alert to that email group.