Hi All,
Please excuse us for only getting back now as your message failed to be routed to our support queue.
@Nils - Thank you for providing your insights on this as well as recommending a script.
If you would like to make use of this field, but is not available for performance max campaigns, I would instead suggest you reach out to the Google Ads API support team and inquire with them if a request could be raised in order to expose this functionality within performance max campaigns. I would like to inform you that Google Ads Scripts' reporting infrastructure is backed by the Google Ads API as per our reporting documentation <
https://developers.google.com/google-ads/scripts/docs/features/reports>. If the said information you're aiming to retrieve would be made available via API, then it would likely be also supported by Google Ads Scripts' reporting feature.
You may reach out to them via their public forum:
https://groups.google.com/g/adwords-api.
If you'd need further assistance regarding Google Ads Scripts, just let us know.
Best regards,
Google Ads Scripts Team