Hi,
Thank you for contacting the Ad Manager API support team.
I understand that you are looking for "Inventory Type" in API which is available in the UI as one of the targeting options. As per the line item
Targeting, the 'Inventory Type' targeting is not supported via API. You can use
EnvironmentType for targeting all types of line items. If you want to add targeting for video line items or proposal line items then you can use
RequestPlatformTargeting where you can target BROWSER, MOBILE_APP and VIDEO_PLAYER. Let us know if you have any further queries.
