Takehiro,
I am facing the same issue with the 'listId' parameter not functioning as expected. Did Marketo support provide feedback/direction or were you able to find a solution to the issue?
Thanks in advance!
Isaac
You should probably open a new thread. Be very specific about the payload you're sending and what you're getting in the response.
I am also having this issue...I found this article - it indicates that you need to use "assetIds" instead of "ListId"
Using API to get lead activities from specific asset
I sure wish Marketo API Doc were kept up-to-date and had clear and working (tested ) examples.
It's 2 different concepts, though. One is to retrieve activities for leads that are members of a list at the time of an activity. The other is to retrieve activities whose primary relationship is to the list object.