I have data for the following activities-
I want to know what is the common attribute between these activities through which I can identify that the email which had been send to lead, was opened or clicked later.
You need to ask yourself how you'd tie these together in the Marketo UI. It's not easier in the API dump!
I did not get you, My Question is if I have data for "email send" and "email delivered"(from bulk extract API), how would I map this data between this two activities.
Is it the "primaryAttribute" by which we can connect the activity?
And one more thing, is there any document to get details/ meaning of each activity and there respective attributes.