List Google Ads assets and where they are used

Lists the assets (extensions) that exist in the account and which campaigns or ad groups they are linked to. Assets live once in an account library and are then linked in one or more places, so the same sitelink can serve on several campaigns. Use when: you need asset ids before linking, removing or building a Performance Max asset group, or the user asks what extensions are running. Do not use when: the user wants ad copy (google_get_ad_creative) or per-asset performance labels (google_get_asset_performance). Returns one row per asset with its type, content and the campaigns/ad groups it is linked to. Paging is by asset id: pass the returned next_after_asset_id as after_asset_id to get the next page. Business names are stored as plain text assets, so asking for BUSINESS_NAME lists text assets; the link field type is what makes one a business name. If you are unsure which account, campaign or period the user means, ask them — do not guess ids or dates.