Hello,
Thank you for sharing the details privately. I was able to take a look at the specific campaign and see that there are no ad groups or ad group ads in this campaign. In this case, you may use the
asset resource to pull the specific asset details. The
ad_group_ad_asset_view should be used to pull the specific ad group ad's asset details.
Similarly, if you're using AdWords API, the specific campaign currently, does not have any App campaign Ads. You may use the
AssetService.get() operation to pull the asset details. Let me know if you have any other concerns.
Regards,