How does DESelect Segment work with Synchronized Data Extensions and Data Views?

you can use both synchronized data extensions and data views as data sources when creating selections in deselect segment for data views, the effect is tremendous, as this is powerful information normally locked to technical users who know sql however, with deselect segment you can easily get information from data views through drag and drop deselect segment support all 23 data views available in salesforce marketing cloud they are available in ‘available data extensions’ in data views you’ll find data like subscribers and salesforce marketing cloud event tracking (email/sms sends, email opens, link clicks, ) data views can be easily recognized as their name starts with an underscore