Zeros values for Smart Campaigns from the ad_group_ad report

[da...@improvado.io]

Hi the Google Ads API team,

When we download the ad_group_ad report, Smart campaigns are left out, is this an expected behaviour?

Account_id: 7458945678

Customer_id: 3686699574

For example, when I tried to requst data from Campaign, I got the data

POST https://googleads.googleapis.com/v6/customers/7458945678/googleAds:search

   SELECT   

        campaign.advertising_channel_sub_type,

        campaign.advertising_channel_type,

        campaign.name,

        campaign.id,

        metrics.cost_micros,

        metrics.impressions

    FROM campaign

    WHERE segments.date BETWEEN '2019-09-01' AND '2019-09-30' and campaign.advertising_channel_type=SMART

The same but from the Ad_group_ad doesn`t return data

   SELECT   

        campaign.advertising_channel_sub_type,

        campaign.advertising_channel_type,

        campaign.name,

        campaign.id,

        metrics.cost_micros,

        metrics.impressions

    FROM ad_group_ad

    WHERE segments.date BETWEEN '2019-09-01' AND '2019-09-30' and campaign.advertising_channel_type=SMART