Google Unveils Game-Changing Performance Max Reporting—Is This the End of Traditional Ad Metrics?

Google broadened Performance Max product-level reporting to include data from all eligible networks, giving advertisers a more complete view of campaign performance—but also causing a one-time jump in key metrics for many accounts.

What’s happening. As of June 15th, Google updated product reporting for Performance Max campaigns so metrics are no longer limited to Search network activity.

The updated reports now include product performance data across:

• All Performance Max networks
• Video campaigns
• App campaigns
• Demand Gen campaigns (where applicable through Google Merchant Center)

Previously, metrics such as cost and conversions reflected only products served on Search networks and Standard Shopping campaigns.

Why we care. Advertisers may notice sudden increases in impressions, clicks and other metrics, even if campaign performance hasn’t actually changed. The shift reflects a broader reporting scope rather than improved results.

Between the lines. The update addresses a long-standing reporting limitation by giving advertisers a more comprehensive view of how products perform across Google’s inventory. At the same time, it complicates historical comparisons, as pre- and post-update reports aren’t directly comparable.

What advertisers should do: When analysing Performance Max data:

• Use the Network (with search partners) filter to break down where activity is coming from.
• Add context to month-over-month reports, as reporting changes—not campaign performance—may explain sudden spikes.

The bottom line. Google’s expanded Performance Max reporting offers a more complete picture of product performance across its advertising ecosystem, but advertisers should treat recent reporting increases as a measurement change rather than a performance improvement.

First spotted. The update was highlighted by Google Ads specialist Bia Camargo, who shared Google’s notice and warned advertisers to prepare clients for reporting changes that may look like performance gains but are actually the result of expanded measurement.