Asset Feed Spec

The asset_feed_spec field allows you to deliver different combinations of an ad's creative to different users. There are two ways to set up your combinations:

• Automatically: You provide the creative assets and we automatically deliver different combinations to different users. To use this option, see Dynamic Creative API.
• Manually: You provide the creative assets and you create rules on how to display those assets. To use this option, see Asset Customization Rules.

The asset feed spec contains a collection of different creative elements, such as images, titles, bodies, and so on. You can specify multiple creative assets for each asset type. The spec's format is different for each use case. See also Reference, Asset Feed Spec.

Create Asset Feed

You can use asset_feed_spec to provide multiple creative assets, with the following limitations:

• For all Asset Customization Rules, include at least two target customization rules in asset_feed_spec.
• For Dynamic Creative, asset_feed_spec should not have customization rules. In this case, you can mix both images and videos across different placements by specifying [“AUTOMATIC_FORMAT”] under ad_formats.

For example, to create an asset_feed_spec for Dynamic Creative:

curl -X POST \
  -F 'name="Dynamic Ad Creative with Asset Feed Spec Sample"' \
  -F 'object_story_spec={
       "page_id": "<PAGE_ID>"
     }' \
  -F 'asset_feed_spec={
       "images": [
         {
           "hash": "<IMAGE_HASH>"
         }
       ],
       "bodies": [
         {
           "text": "Begin Your Adventure"
         },
         {
           "text": "Once a Trainer, always a Trainer."
         }
       ],
       "titles": [
         {
           "text": "Level Up"
         },
         {
           "text": "Swipe to evolve"
         }
       ],
       "descriptions": [
         {
           "text": "First Dynamic Ad Creative Sample"
         }
       ],
       "ad_formats": [
         "SINGLE_IMAGE"
       ],
       "call_to_action_types": [
         "SHOP_NOW"
       ],
       "link_urls": [
         {
           "website_url": "https://www.example.com/"
         }
       ],
       "videos": []
     }' \
  -F 'access_token=<ACCESS_TOKEN>' \
  https://graph.facebook.com/v21.0/act_<AD_ACCOUNT_ID>/adcreatives

You can also create an asset_feed_spec with two alternate videos, bodies, and titles:

curl \
-F 'object_story_spec={
       "page_id": "YOUR_PAGE_ID"
       "instagram_actor_id" : "INSTAGRAM_ACTOR_ID",
    }' \
-F "asset_feed_spec={'videos': [{'video_id':'2053108854721025', 'thumbnail_url':'<thumnail_url>', 'url_tags':'video=video1'},{'video_id':'2104406249780616', 'thumbnail_url':'<thumnail_url>','url_tags':'video=video2'}], 'bodies': [{'text':'Begin Your Adventure'}, {'text':'Once a Trainer, always a Trainer.'}], 'titles': [{'text':'Level Up'}, {'text':'Swipe to evolve'}], 'descriptions': [{'text':'Begin Your Adventure'}], 'ad_formats': ['SINGLE_IMAGE'], 'link_urls': [{'website_url':'<WEBSITE_URL>'}]}" \
-F 'access_token=<ACCESS_TOKEN>'  \
https://graph.facebook.com/<API_VERSION>/act_<AD_ACCOUNT_ID>/adcreatives

See all available options for Asset Feed Spec.

Read Asset Feed

To check your creative, read asset_feed_spec:

curl -X GET \
  -d 'fields="asset_feed_spec"' \
  -d 'access_token=<ACCESS_TOKEN>' \
  https://graph.facebook.com/v21.0/<CREATIVE_ID>/

'use strict';
const bizSdk = require('facebook-nodejs-business-sdk');
const AdCreative = bizSdk.AdCreative;

const access_token = '<ACCESS_TOKEN>';
const app_secret = '<APP_SECRET>';
const app_id = '<APP_ID>';
const id = '<AD_CREATIVE_ID>';
const api = bizSdk.FacebookAdsApi.init(access_token);
const showDebugingInfo = true; // Setting this to true shows more debugging info.
if (showDebugingInfo) {
  api.setDebug(true);
}

const logApiCallResult = (apiCallName, data) => {
  console.log(apiCallName);
  if (showDebugingInfo) {
    console.log('Data:' + JSON.stringify(data));
  }
};

let fields, params;
fields = [
  'asset_feed_spec',
];
params = {
};
const sample_code = (new AdCreative(id)).get(
  fields,
  params
);
logApiCallResult('sample_code api call complete.', sample_code);

require __DIR__ . '/vendor/autoload.php';

use FacebookAds\Object\AdCreative;
use FacebookAds\Api;
use FacebookAds\Logger\CurlLogger;

$access_token = '<ACCESS_TOKEN>';
$app_secret = '<APP_SECRET>';
$app_id = '<APP_ID>';
$id = '<AD_CREATIVE_ID>';

$api = Api::init($app_id, $app_secret, $access_token);
$api->setLogger(new CurlLogger());

$fields = array(
  'asset_feed_spec',
);
$params = array(
);
echo json_encode((new AdCreative($id))->getSelf(
  $fields,
  $params
)->exportAllData(), JSON_PRETTY_PRINT);

from facebook_business.adobjects.adcreative import AdCreative
from facebook_business.api import FacebookAdsApi

access_token = '<ACCESS_TOKEN>'
app_secret = '<APP_SECRET>'
app_id = '<APP_ID>'
id = '<AD_CREATIVE_ID>'
FacebookAdsApi.init(access_token=access_token)

fields = [
  'asset_feed_spec',
]
params = {
}
print AdCreative(id).get(
  fields=fields,
  params=params,
)

import com.facebook.ads.sdk.*;
import java.io.File;
import java.util.Arrays;

public class SAMPLE_CODE_EXAMPLE {
  public static void main (String args[]) throws APIException {

    String access_token = \"<ACCESS_TOKEN>\";
    String app_secret = \"<APP_SECRET>\";
    String app_id = \"<APP_ID>\";
    String id = \"<AD_CREATIVE_ID>\";
    APIContext context = new APIContext(access_token).enableDebug(true);

    new AdCreative(id, context).get()
      .requestAssetFeedSpecField()
      .execute();

  }
}

require 'facebook_ads'

access_token = '<ACCESS_TOKEN>'
app_secret = '<APP_SECRET>'
app_id = '<APP_ID>'
id = '<AD_CREATIVE_ID>'

FacebookAds.configure do |config|
  config.access_token = access_token
  config.app_secret = app_secret
end

ad_creative = FacebookAds::AdCreative.get(id ,'asset_feed_spec')

If you have a Dynamic Creative feed with multiple images and bodies, the response looks like this:

{  
   "asset_feed_spec":{  
      "images":[  
         {  
            "url_tags":"image=image1",
            "hash":"785095162a2034666e0d0cc4ea1faf89"
         },
         {  
            "url_tags":"image=image2",
            "hash":"3a24122c13923569599be35567ce4e9e"
         }
      ],
      "bodies":[  
         {  
            "text":"Begin Your Adventure"
         },
         {  
            "text":"Once a Trainer, always a Trainer."
         }
      ],
      "call_to_action_types":[  
         "LEARN_MORE"
      ],
      "call_to_actions":[  
         {  
            "type":"LEARN_MORE"
         }
      ],
      "descriptions":[  
         {  
            "text":"Begin Your Adventure"
         }
      ],
      "link_urls":[  
         {  
            "website_url":"<WEBSITE_URL>"
         }
      ],
      "titles":[  
         {  
            "text":"Swipe to evolve"
         },
         {  
            "text":"Level Up"
         }
      ],
      "ad_formats":[  
         "SINGLE_IMAGE"
      ],
      "optimization_type":"REGULAR"
   },
   "id":"<AD_CREATIVE_ID>",
}

If you have a Dynamic Creative feed with multiple videos, bodies, and titles, the response looks like this:

{  
   "asset_feed_spec":{  
      "videos":[  
         {  
            "url_tags":"video=video1",
            "video_id":"2053108854721025",
            "thumbnail_url":"<thumnail_url>",
            "thumbnail_hash":"<thumnail_hash>"
         },
         {  
            "url_tags":"video=video2",
            "video_id":"2104406249780616",
            "thumbnail_url":"<thumnail_url>",
            "thumbnail_hash":"<thumnail_hash>"
         }
      ],
      "bodies":[  
         {  
            "text":"Begin Your Adventure"
         },
         {  
            "text":"Once a Trainer, always a Trainer."
         }
      ],
      "call_to_action_types":[  
         "LEARN_MORE"
      ],
      "call_to_actions":[  
         {  
            "type":"LEARN_MORE"
         }
      ],
      "descriptions":[  
         {  
            "text":"Begin Your Adventure"
         }
      ],
      "link_urls":[  
         {  
            "website_url":"<WEBSITE_URL>"
         }
      ],
      "titles":[  
         {  
            "text":"Swipe to evolve"
         },
         {  
            "text":"Level Up"
         }
      ],
      "ad_formats":[  
         "SINGLE_VIDEO"
      ],
      "optimization_type":"REGULAR"
   },
   "id":"<AD_CREATIVE_ID>",
}

Edit Asset Feed

You can add, replace or remove any of the creative's assets. To do so, provide another creative with the new asset_feed_spec.

You can:

• Add assets.
• Remove existing assets.
• Replace assets with completely new ones.

You cannot:

• Change ad formats, such as from SINGLE IMAGE to VIDEO.
• Update an Asset Feed based creative ad to be a non-Dynamic Creative ad, which has no asset_feed_spec.

    curl \
      -F 'access_token=<ACCESS_TOKEN>' \
      -F 'creative={
          "creative_id": <CREATIVE_ID>,
       }' \
    https://graph.facebook.com/v21.0/<AD_ID>
    

When you create a new ad creative to replace an old one, you must still fulfill all restrictions that apply.