Compatibility: Placement compatibility. WEB and WEB_INTERSTITIAL refer to rendering either on desktop or on mobile devices for regular or interstitial ads, respectively. APP and APP_INTERSTITIAL are for rendering in mobile apps. IN_STREAM_VIDEO refers to rendering in in-stream video ads developed with the VAST standard. This field is required on insertion.
"APP" "APP_INTERSTITIAL" "IN_STREAM_VIDEO" "WEB" "WEB_INTERSTITIAL"