We've just added an additional dimension to our Twitter connection in Funnel. You now have access to Post Type under the Promoted Tweet report.
Providing you've connected this report to Funnel, no action is required in order to obtain data for this new dimension going forward.
You can learn more about the data we pull from Twitter in this article.
We hope that you find this new dimension useful! If you're unable to find the field you need or if you would like to see historic data for Post Type, please contact firstname.lastname@example.org and we'll be happy to help!