Performance Max ads rely on Google’s AI to dynamically create the best ad combinations for each user. Success depends on providing high-quality, cohesive assets that work together seamlessly. This guide covers all specifications and provides strategic recommendations for each asset type.

Text Asset Specifications & Best Practices

Headlines

Technical Requirements:

  • Maximum length: 30 characters
  • Must include at least one headline ≤ 15 characters

Best Practices:

  • Create 3-5 variations for each headline length
  • Include your unique value proposition
  • Use action words that drive engagement
  • Test different emotional appeals (urgency, curiosity, benefit-focused)

Long Headlines

Technical Requirements:

  • Maximum length: 90 characters

Best Practices:

  • Write compelling benefit-focused statements
  • Include specific offers or unique selling propositions
  • Maintain consistency with shorter headlines

Descriptions

Technical Requirements:

  • Maximum length: 90 characters
  • Must include at least one description ≤ 60 characters

Best Practices:

  • Focus on benefits rather than features
  • Include clear calls-to-action
  • Use customer-centric language
  • Vary length to allow for different placements Business Name

Technical Requirements:

  • Maximum length: 25 characters

Image Asset Requirements & Optimization

Landscape & Square Images

Technical Requirements:

  • Upload 1-20 images
  • Recommended minimum: 5 variations

Best Practices:

  • Use high-resolution images (minimum 1200 x 628 pixels)
  • Show products in context
  • Include lifestyle images
  • Test different image styles (product-only, lifestyle, action shots)
  • Ensure text overlay is minimal and readable

Portrait Images

Best Practices:

  • Optimize for mobile viewing
  • Use clear, uncluttered compositions
  • Focus on single subjects or messages

Logos

Requirements:

  • Square (1:1) logo required
  • Landscape logo optional

Best Practices:

  • Use transparent backgrounds
  • Ensure visibility at small sizes
  • Maintain brand consistency

Video Asset Optimization

Technical Requirements:

  • Must be hosted on YouTube
  • Can be public or unlisted

Best Practices:

  • Create multiple lengths (6, 15, and 30 seconds)
  • Hook viewers in first 3 seconds
  • Include your brand message early
  • Use captions for sound-off viewing
  • Maintain consistent branding with image assets
  • Consider creating these video types:
    • Product demonstrations
    • Customer testimonials
    • Brand story videos
    • How-to content

Call to Action Strategy

Available Options:

  • Learn more
  • Get quote
  • Apply now
  • Sign up
  • Contact us
  • Subscribe
  • Download
  • Shop now

Best Practices:

  • Match CTA to customer journey stage
  • Test different CTAs for various audience segments
  • Consider industry-specific preferences
  • Align with landing page experience

Asset Integration Tips

  1. Maintain consistent branding across all assets
  2. Test different combinations of assets
  3. Regularly refresh content to prevent ad fatigue
  4. Monitor performance metrics by asset type
  5. Use high-quality, original imagery whenever possible

Mobile Optimization Checklist

  • Ensure text is readable on small screens
  • Test image clarity at mobile sizes
  • Verify video playback on mobile devices
  • Check load times for all assets

Performance Tracking & Optimization

  • Monitor asset performance regularly
  • A/B test different asset combinations
  • Update low-performing assets
  • Keep successful assets but add variations
  • Track engagement metrics by placement

Need expert guidance on implementing Performance Max campaigns? Request a free Digital Marketing Strategy Session from our team to learn how these campaigns can enhance your digital marketing performance.