Asset group best practices

Note: Text customization was formerly known as automatically created assets.

An asset group uses your creatives to assemble an ad depending on the channel you’re serving it on. You can organize assets groups in a variety of ways, including based on common themes or by your different products or services. Learn more about How asset groups work.

Google AI can assemble the assets from an asset group into all applicable ad formats for your goal and show the most relevant creative for your campaign. To help Google AI and your ad performance, we recommend the following best practices to set up your asset groups for optimal results.


Best practices for all asset groups

  • Use the Ad Strength indicator to determine if an asset group has enough assets to drive best performance.
  • Ensure that all asset types (text, images and videos) are covered in every asset group.
  • Ensure your assets meet quality guidelines.
  • Create variations of assets to find the top performing creative.
  • After you edit your assets, wait for a few days for your Ad Strength and Asset group status to be updated. We recommend waiting 2-3 weeks before deciding to replace low performing assets.
  • Add as many assets as possible, including up to 15 headlines, 5 descriptions, 20 images in different orientations, and 5 videos in different orientations.
  • If you create an asset group in Google Ads Editor, you can add a listing or product group only in Editor.

Asset requirements

Each asset type has various requirements and recommendations. A quick summary of the requirements is below, but review the full specifications at the articles listed:

Text asset specifications

  Type Guidelines Recommended Required
Headlines 30 characters max; include at least one with 15 characters or less 11+ (minimum of 3, maximum of 15)

Long headline 90 characters maximum; try to make sure headlines are at least 30 characters long 2+ (minimum of 1, maximum of 5)

Descriptions 90 characters maximum 4+ (minimum of 2, maximum of 5)

Business name 25 characters maximum  

Call to action Automated by default, or select from a list 1 call to action

Final URL   1 URL

This icon represents the Display URL path specification for text assets for Performance Max. Display URL path 15 characters maximum each 2 (minimum of 1, maximum of 2)

Note: In text assets, the length limits are the same across all languages. Each character in double-width languages like Korean, Japanese, or Chinese counts as 2 towards the limit instead of one.
Note: If Final URL expansion is on, Google may replace your Final URL with a more relevant landing page based on the user's search query, and generate a dynamic headline, description, and additional assets to match your landing page content. Learn more About text customization in Search campaigns.

Image assets requirements

  Ratio Guidelines Recommended Required
Horizontal 1.91:1 1200 x 628 recommended; 600 x 314 minimum; 5120 KB max file size 4+ (Add up to 20 images)

*Square 1:1 1200 x 1200 recommended; 300 x 300 minimum; 5120 KB max file size 4+ (Add up to 20 images)

Vertical 4:5 960 x 1200 recommended; 480 x 600 minimum 2+ (Add up to 20 images)

Square logo 1:1 1200 x 1200 recommended; 128 x 128 minimum; 5120 KB max file size 1 (Add up to 5 logos)

*Horizontal logo 4:1 1200 x 300 recommended; 512 x 128 minimum; 5120 KB max file size 1 (Add up to 5 logos)

*Logos with a transparent background may be rendered on a white background when served in most ads. For this reason, we recommend you upload logos as a square image and to avoid a predominantly white logo on a transparent background.

Note: Upload images as .jpg or .png with a maximum size of 5MB. Some images are optional, but will help your campaign stand out with excellent ad strength.
Note: Upload images as .jpg or .png with a maximum size of 5MB. Some images are optional but will help your campaign stand out with excellent ad strength.

Videos asset requirements

  Ratio Minimum Requirement Recommended Maximum

Landscape
16:9

10-60 seconds

1 video 5 videos
across all types

Vertical
9:16

10-60 seconds

1 video 5 videos
across all types

Square
1:1

10-60 seconds

1 video 5 videos
across all types
Note: Our system is able to automatically generate videos based on the assets provided. However, we still recommend that advertisers upload at least one video themselves.
Note: If you don't add a video to your Performance Max asset group, then one or more videos may be auto-generated from the assets in your asset group. If you don't have a video assets and don't want to use the auto-generated videos, you can use the Google Ads video creation tool to create a video that you can use in your Performance Max campaign. Learn how to Create a video using Asset library.

Example of how asset groups can be used

Create multiple asset groups within the same campaign to group assets that should serve in sets or themes. Separating asset groups by content category, theme, language, or target audience is recommended. You may also want to create multiple asset groups if certain assets are more relevant to specific audiences.

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