Performance Max now shows you exactly which missing or disapproved assets are killing your delivery across Google's networks, in one dashboard.
Google has released Channel Diagnostics for Performance Max campaigns, giving advertisers a centralized dashboard to spot asset problems that throttle campaign delivery. The feature is live now in Insights & Reports > Channel Performance.
Performance Max is designed to run your ads across Google's full network, Search, Display, YouTube, Gmail, and more. But missing or disapproved assets often cause Google's system to restrict where your ads can appear, cutting reach without you knowing why.
Channel Diagnostics eliminates that blind spot. The tool shows you exactly which asset types, headlines, descriptions, images, or other creative elements, are missing or failed approval in each channel, and flags which ones are limiting your eligibility to run ads there.
This is especially valuable for campaigns running across multiple channels where asset requirements differ. A headline that works fine on Search might not meet YouTube specs, or an image might be disapproved on Display but not Gmail. Channel Diagnostics shows you those channel-specific gaps so you can build assets that unlock every door.
How WebKing runs this
We set up and monitor your Performance Max campaigns inside this new Diagnostics view, catching asset failures before they bleed your budget. We know which channels are pickiest about asset specs and make sure your creative hits every requirement so nothing throttles your reach.
It shows you missing or disapproved assets across all your Performance Max channels (or one at a time if you drill in), and tells you exactly which asset types, headlines, descriptions, images, are broken and need fixing before your campaign can run at full capacity.
It's in Insights & Reports > Channel Performance within your Performance Max campaign setup, and it's available now.
When assets are missing or disapproved, Google's system limits where your ads can run. Channel Diagnostics shows you what's stopping that, so you can fill gaps or fix approvals and get full delivery back instead of bleeding spend on restricted reach.
Yes, you can view diagnostics across all channels at once for a quick overview, or drill into individual channels to see detailed asset issues in that specific place.
Sources
The Lab is original analysis by WebKing. We summarize and interpret developments from the sources above for industrial, commercial, and small business owners. Figures are reported as published by their sources.
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