Hi Yinbao,
Thank you for reaching out. You could refer to the list of available fields for GoalOptimizedShoppingAd which belongs to Smart Shopping Campaigns. Please let me know if you have any further questions.
Thanks and regards,
Xiaoming, Google Ads API Team
Hi Yinbao,
There are some discrepancies between the features in the API and the UI as you may have already seen. We don’t have a set timeline for the support of these fields in the Adwords API. Please keep an eye on our blog for announcements and the updates on new releases.
Thanks and regards,
Xiaoming, Google Ads API Team