Supplementary feed is a feature of Facebook that allows users to enhance their Facebook catalog with additional product attributes. It supplements the product information provided in another data feed, enabling users to add or update certain fields for existing items in their catalog.

Table of Contents

Why Use a Supplementary Feed?
When to Use a Supplementary Feed
How to Create a Supplementary Feed
- Creating a Supplementary Feed
- Editing Item ID in the Supplementary Feed
- Editing Enhanced Fields

Why Use a Supplementary Feed?

If the primary feed only provides basic fields and does not include enhanced fields such as color, size, gender, age group, or custom fields, a supplementary feed can be used to add those fields. Additionally, it allows users to overwrite certain information declared in the primary feed. For more details on basic and enhanced fields, refer to this article.

When to Use a Supplementary Feed

If you have created a Facebook feed (primary feed) using our app, there is no need to create a supplementary feed, as the Facebook feed generated by our app includes all basic and enhanced fields. However, if you have created a Facebook feed using another app that does not provide the necessary fields, you can use our app to create a supplementary feed.

How to Create a Supplementary Feed

Create a supplementary feed

Please go to the Feed Center > Supplementary Feed tab > click the Add Supplementary Feed button > Connect with Facebook Catalog > Log into your Facebook Business account and grant our app permission stated within the pop-up



Then, you will be taken to the Create Feed page. You need to input the Feed Name, choose your Facebook Business Account, the Catalog ID and Primary feed linked.

Please note: Select an available Primary Feed that has not been connected to any other Supplementary Feed yet

Next, choose the Product Source (the store) you want to sync product from. If you have more than one store, you can choose more than one source.

Finally, you can also choose the exact product to be included in your feed using Product Filter. You can either include products manually by inserting their IDs or set up rules to filter specific product groups.



Editing Item ID in the Supplementary Feed

To match the supplementary and primary feed, you need to check the item ID (Content ID) of the item on the primary feed.



After that, please go to our app > Feed Center > Supplementary Feed tab > click into the feed > Field Mapping > edit the value at the ID field to make sure it is the same with ID on the primary feed

For example:


Before editing



After editing



Edit the enhanced fields

And then, you can edit for the fields that you want, such as:

Gender field



Age group field



Addtional image link field



After you've edited the fields and save, please go to the Feed Center > Supplementary Feed tab > click into the 3 dots icon > Manual submit to sync your feed right away



For example the result of feed after add a supplementary feed:


Before adding a supplementary feed

Additional images and Age-group: missing



Gender field: missing



After adding a supplementary feed





Also, you can edit product images in bulk in your supplementary feed to declare to Facebook without having to edit each product image on your website. Please refer to this article to use it.


A supplementary feed is a powerful tool that helps enhance Facebook catalogs by adding missing fields and updating existing information. By following the steps outlined above, users can successfully create and manage a supplementary feed to optimize their product data for Facebook ads and e-commerce campaigns.

If you have any further question about the supplementary feed, don't hesitate to contact us via in-app live chat or email at support@socialhead.io

Updated on: 05/03/2025