As part of the introduction of the v23 Ads API, Performance Max campaigns can now be reported by channel, including Search, YouTube, Discover, Discover, Gmail, Maps, and Search Partners. Previously, performance data was mostly organized into one mixed category.
Change under the hood. Previous versions of the API often returned a Mixed the value of this ad_network_type part of Performance Max campaigns. With v23, those responses are now output to specific channel numbers – a noticeable change for reporting and optimization.
Why do we care. Google Ads API v23 doesn’t just add features – it changes the way advertisers understand Performance Max. The update introduces channel-level reporting, giving advertisers long-requested visibility into where PMax ads are actually playing.
How advertisers can use it. Channel-level data is available at the campaign, asset group, and asset level, allowing teams to see how a single creative is performing across Google properties. When combined with v22 segments like ad_using_video again ad_using_product_dataAdvertisers can segment results such as video performance on YouTube or search ads.
For engineers. Upgrading to v23 will feature more detailed reporting than ever before. Reporting systems that relied on MIXED value inheritance will need to be updated to handle the new channel enums.
What you can watch:
- Channel data is only available for dates starting June 1, 2025.
- Property channel level reporting remains API only and will not appear in the Google Ads UI.
Bottom line. The latest release of the Google Ads API quietly brings one of the biggest updates to Performance Max yet – turning the black box campaign type into something that advertisers can finally analyze by channel.
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