Performance Max low asset coverage

Performance Max Low Asset Coverage: Causes & Solutions

If you’re running Performance Max campaigns for your Shopify or ecommerce store, you may encounter a warning or notification about “Low Asset Coverage.” This means your campaign doesn’t have enough creative assets (images, videos, headlines, descriptions) for Google’s systems to optimize your ads across all available placements. This can limit your reach and performance.

Why This Issue Happens

Performance Max relies on a variety of creative assets to automatically generate ads for Search, Display, YouTube, Gmail, and Discover. If you provide too few assets, or if the assets are too similar, Google can’t create enough ad variations. This reduces your campaign’s ability to find the best-performing combinations and may restrict where your ads appear.

Common Causes

• Not uploading the recommended number of images, headlines, or descriptions
• Missing video assets (Google will auto-generate low-quality videos if none are provided)
• Assets that are too similar or repetitive (e.g., headlines that are nearly identical)
• Incorrect image sizes or aspect ratios
• Assets rejected due to policy violations
• Technical errors during asset upload (file size, format, etc.)

Step-by-Step Checklist to Fix Low Asset Coverage

• Review the asset recommendations in your Performance Max campaign’s Asset Group section.
• Add more assets to meet or exceed Google’s recommendations:
  • Headlines: 3–5 unique headlines
  • Long headlines: 1–5
  • Descriptions: 2–5
  • Images: At least 5 (including landscape, square, and portrait)
  • Logos: 1–2 (square and landscape)
  • Videos: At least 1 (YouTube link, 10–30 seconds, landscape or square)
• Ensure each asset is unique and relevant—avoid repeating similar text or images.
• Check that all images and videos meet Google’s technical requirements (size, format, aspect ratio).
• Replace any assets flagged for policy violations or low quality.
• After making changes, review the Asset Group status to confirm the warning is resolved.

What Does NOT Work

• Duplicating the same headline, description, or image multiple times
• Relying on Google’s auto-generated videos as your only video asset
• Ignoring the warning—Performance Max will not optimize fully without diverse assets
• Uploading assets that don’t meet technical specs (wrong aspect ratio, low resolution, etc.)

How Reviews or Checks Work

When you add or update assets, Google automatically reviews them for policy compliance and technical quality. This review is usually completed within a few hours, but can take up to 24 hours. If an asset is disapproved, you’ll see a notification in your Asset Group with the reason for disapproval. Only approved assets count toward your asset coverage.

FAQ

• Q: Can I run a Performance Max campaign with just one image and headline?
  A: Technically yes, but your campaign will have low asset coverage and limited reach. Google recommends multiple unique assets for best results.
• Q: What happens if I don’t upload a video?
  A: Google will auto-generate a basic video using your images and text. However, these videos are often low quality and may not perform well. Uploading your own video is strongly recommended.
• Q: How can I tell if my asset coverage is sufficient?
  A: In your Performance Max campaign, go to the Asset Group. Google will show a status (e.g., “Low asset coverage”) and recommendations for adding more assets.
• Q: Do rejected assets count toward asset coverage?
  A: No. Only approved assets are counted. Replace or fix any disapproved assets to improve coverage.
• Q: Will adding more assets guarantee better performance?
  A: No guarantee, but more diverse, high-quality assets give Google’s systems more options to optimize your ads across channels.

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