How To Use DESelect Segment
Other Questions
Are Custom Data Views supported in DESelect Segment?
deselect segment currently does not support custom data views, however, there is a simple way of recreating those custom data views in deselect segment re creating a custom data view in email studio, create a new data extension with the same fields as the custom data view that you want to re create go to automation studio and create an sql activity to select from the custom data view into the newly created data extension set this automation to update it daily/hourly depending on the cadence necessary the data extension will then be visible in deselect segment and can then be queried