Hello,
Thank you for reaching out to the Google Ads API Team.
Upon checking further, Reach / Unique Users metric is not yet supported in the Google Ads API. However, our team already raised a feature request for this to become available in the API. Kindly note that this is a subject for review and what we can do is to advise you to keep an eye on our blog post for the updates and releases.
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Google Ads API Team |