Hi Pietro,
Thank you for reaching out. The device criteria for each device implicitly exists in each campaign, so you won't be able to ADD or REMOVE those criteria. However, you can use bid modifiers to opt out of a specific device or set the bid modifier for a specific device by updating the bid_modifier of the
CampaignCriterion.
Additionally, make sure you are performing this call on a Display campaign since this is the only campaign type that supports CONNECTED_TV (other than Video campaigns which can't be modified using the API).
If you are still having issues, please share the uncensored logs via
Reply privately to author so that I can further investigate the issue.
Regards,
Mitchell
Google Ads API Team

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