def build_new_activity_notification(course_name, activity_name, activity_type):
    """
    Build the notification message with the variables from the JSON response.

    :param activity_type: The type of the activity. Either quiz or assignment.
    :type activity_type: str
    :param course_name: The name of the course the activity is added to.
    :type course_name: str
    :param activity_name: The name of the new activity.
    :type activity_name: str
    :return: The message that will be send.
    :rtype: str
    """
    message = f'For the course {course_name} the {activity_type} {activity_name} is added.'
    return message