I wanted to understand the difference between "$message" and $attributed_message" when I use metric-aggregate API
I want to get results by campaign ID, so I'm using a group by $massage.
But there is a metric, for example, "order placed," that does not return the breakdown by campaign ID unless I group it by "$attributed_message."
I wanted to know what kind of metrics I should do by "$attributed_message" and what I should do by "$message"
