account | DynamicAccount | Yes | - | Select the X Ads account that owns the ad group. |
ad_group_id | string or SelectItem | Yes | - | Ad group (line item) to attach the third-party tracking tag to. |
tracking_tag_type | enum (IMPRESSION_TAG, CLICK_TRACKER) | Yes | - | The kind of tag: IMPRESSION_TAG (fires on impressions) or CLICK_TRACKER (fires on clicks). |
tracking_tag_url | string | Yes | - | The third-party tracking URL to fire. X only accepts Google Campaign Manager (DCM) tags, and the URL must carry the tag id in its dc_trk_cid parameter. |