Performance Max campaigns have some unique characteristics regarding assets.
- There are a minimum required number of assets of different types.
- Assets are grouped together in a collection called an
AssetGroup, which is unique to Performance Max campaigns.
- Assets are generated automatically by machine learning.
Ensure minimum asset requirements are met
Each Performance Max campaign requires an initial, minimum set of assets. These may be existing assets used in other campaigns or new assets specifically for a Performance Max campaign.
|Asset type||Field type||Specifications||Min||Max|
|TEXT||HEADLINE||30 characters max; include at least one with 15 characters or less.||3||5|
|LONG_HEADLINE||90 characters max||1||5|
|DESCRIPTION||90 characters max; include at least one with 60 characters or less.||2||5|
|BUSINESS_NAME||25 characters max||1||1|
|IMAGE||MARKETING_IMAGE||Landscape (1.91:1) 1200 x 628 recommended; 600 x 316 min; 5120KB max file size||1||20|
|SQUARE_MARKETING_IMAGE||(1:1) 1200 x 1200 recommended; 300 x 300 min; 5120KB max file size||1||20|
|SQUARE_MARKETING_IMAGE||(1:1) 300 x 300 recommended; 5120KB max file size||1||20|
|PORTRAIT_MARKETING_IMAGE||(4:5) 960 x 1200 recommended; 480 x 600 min||0||20|
|LOGO||(1:1) 1200 x 1200 recommended; 128 x 128 min; 5120KB max file size||1||5|
|LANDSCAPE_LOGO||(4:1) 1200 x 300 recommended; 512 x 128 min; 5120KB max file size||0||5|
|YOUTUBE_VIDEO||YOUTUBE_VIDEO||horizontal, vertical, or square, >=10 seconds in length||0||5|
|CALL_TO_ACTION||CALL_TO_ACTION_SELECTION||Automated by default, or select from a list||0||1|
|MEDIA_BUNDLE||MEDIA_BUNDLE||< 150 KB||0||1|
The repeated assets (
DESCRIPTION) must be created in a separate
request prior to creating the campaign.
The following code snippet illustrates creating the necessary repeated assets in a new request:
This example is not yet available in Java; you can take a look at the other languages.
This example is not yet available in C#; you can take a look at the other languages.
This example is not yet available in PHP; you can take a look at the other languages.
def _create_multiple_text_assets(client, customer_id, texts): """Creates multiple text assets and returns the list of resource names. Args: client: an initialized GoogleAdsClient instance. customer_id: a client customer ID. texts: a list of strings, each of which will be used to create a text asset. Returns: asset_resource_names: a list of asset resource names. """ # Here again we use the GoogleAdService to create multiple text # assets in a single request. googleads_service = client.get_service("GoogleAdsService") operations =  for text in texts: mutate_operation = client.get_type("MutateOperation") asset = mutate_operation.asset_operation.create asset.text_asset.text = text operations.append(mutate_operation) # Send the operations in a single Mutate request. response = googleads_service.mutate( customer_id=customer_id, mutate_operations=operations, ) asset_resource_names =  for result in response.mutate_operation_responses: if result._pb.HasField("asset_result"): asset_resource_names.append(result.asset_result.resource_name) _print_response_details(response) return asset_resource_names
This example is not yet available in Ruby; you can take a look at the other languages.
This example is not yet available in Perl; you can take a look at the other languages.
Each campaign requires at minimum one asset group. Assets are automatically mixed and matched based on which Google Ad channel (YouTube, Gmail, Search, etc.) your ad is being served on.
Automation generated assets
Google automation using machine learning generates additional assets as needed to cover all relevant channels.
If you don’t add a video to your Performance Max asset group, then one or more video assets may be generated from the assets in your asset group. If you no longer want auto-generated videos to serve in your Performance Max campaign, then you can upload your own custom video, and the auto-generated videos will stop serving.