The key features of this update include audience list upload capability, better audience management tools, new supported ID types for creating audiences — specifically, mobile advertising IDs and mobile phone numbers — and improved targeting options to help advertisers reach additional users similar to their existing audiences.
Audience creation and management
With this update you can now directly create new list audiences (and manage existing audiences) on ads.twitter.com, through Twitter’s new audience manager tool.
With the new audience manager you will be able to see the details of all of your audiences in one place. From there you can change or delete them, and get notifications on the status of those specific audiences.
Another feature of the new audience manager is the ability to build audiences using mobile phone numbers. Twitter also supports Apple iOS and Google Android mobile advertising IDs, so you can create audiences comprised only of people who have installed your apps, or who have done certain things like view a specific product in your app.
New targeting capabilities: look-alike-only targeting
Twitter is introducing a new way for you to specifically target users who share similar interests to your tailored audiences. In addition, Twitter has included the ability to exclude tailored audiences based on website visitors from campaigns using interest, keyword, TV and other tailored audiences.
Users have privacy choices
Twitter wants to make their ads not only more useful to marketers, but they also want their ads to respect the privacy of users.
Twitter users can easily uncheck the box in their privacy settings next to “Tailor ads based on information shared by ads partners,” and Twitter will not match their accounts to information from our ads partners for tailored audiences. We also respect the “limit ad tracking” setting on iOS and Android devices for audiences based on mobile advertising IDs.