Hi Tung,
Thank you for raising your concern.
Based on our
API document and
product level document, there is no step or process that is discussed about creating ads for Performance Max Campaign. With this, it appears ad is not supported for this type of campaign and this is also the reason why you can't get any data using
ad_group_ad. You may confirm this in your UI.
Let me know if you have further questions.
Regards,
Reminder: Share your feedback about the Google Ads (AdWords) API! Take the
2021 Google Ads API and AdWords API Annual Survey
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Ernie John Blanca Tacata |
Google Ads API Team |
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