I would like to be able to group by multiple fields in my query.
In my query I set "by": ["Campaign Name", "Subject", "Bounce Type"],
However, whenever I do so I get the below error:
Length of ‘by’ must be <= 1
Based on the docs it appears that grouping by multiple fields is possible - if not can this be made available? It would prove extremely useful
Best answer by ben.liangView original