Thank you for your answer. So, I have to check field “Objective” to know what column I need to get value for result fields. But I also have a question.
I see a lot of objective here https://dev.twitter.com/ads/campaigns/objective-based-campaigns.
Such as: APP_ENGAGEMENTS, APP_INSTALLS, AWARENESS, WEBSITE_CLICKS…
So, how can I map it with the column I need to get value for results. Is it existed the link for mapping them together? e.g. if objective is WEBSITE_CLICKS, the value of result field is value of url_clicks…