The user ID is a unique custom visitor identifier defined by the application for a user.
Set and get the unique user ID on the ADBMobile SDK as follows:
Set:
Roku:
ADBMobile().setUserIdentifer("app-generated-unique-id")
Chromecast:
ADBMobile().config.setUserIdentifer("app-generated-unique-id");
Get:
Roku:
vid = ADBMobile().userIdentifer()
Chromecast:
vid = ADBMobile().config.getUserIdentifer();