Supplementary Feeds

Add or override attributes, keep the source clean.

A supplementary feed adds or overrides attributes on top of your main feed without changing it. Use a sheet or file to correct titles, add sale prices or set custom labels for a campaign, and Feedance merges it on every sync.

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Supplementary feed · campaign sheet

Merged into the main feed on every sync

Main feed

After supplementary feed

TS-1042

title: Crew neck T-shirt

title: Crew neck cotton T-shirt, white

SN-2210

sale_price: (empty)

sale_price: 39.90 EUR

JK-0815

custom_label_4: (empty)

custom_label_4: winter_campaign

Sources

SheetFileERPInventory tool

What it is

Better data on top of the feed you already have.

A supplementary feed is an additional feed that adds product attributes without replacing your primary feed. It fills in missing or better data, such as longer descriptions, extra images, custom labels, pricing and discount details or local inventory.

Most platforms, such as Google Merchant Center, accept supplementary feeds but limit how the data is structured and processed. Feedance goes further with multi-feed merging, product tagging and enrichment.

Adds or overrides attributes without touching the source
Merges feeds from ERP, inventory tools and other sources
Tags products for filtering and campaign segmentation
Applied on every sync, for every channel

What you can add

Matched by ID, merged on every sync.

Each row of a supplementary feed is matched to a product in your main feed by its ID. Field names below are examples.

Data

Example attributes

Typical source

Titles and descriptions

title, description

Sheet

Prices and discounts

sale_price

Price sheet

Custom labels

custom_label_0 … custom_label_4

Campaign sheet

Images

additional_image_link

Image sheet

Stock and local inventory

availability

ERP or inventory tool

Match key

Key features

Merge feeds, tag products, enrich data.

Multi-feed merging

Combine feeds from ERP systems, inventory tools and external sources into one enriched dataset.

Product tagging

Tag products at the source for categorization, filtering and campaign segmentation.

Attribute enrichment

Fill in missing attributes or improve existing ones, such as titles, descriptions and sale prices.

Filter by a list

Include or exclude the products listed in a supplementary feed from an export.

How it works

Merge, tag and enrich in one flow.

01
Add a source
Connect a sheet, file or system that holds the extra or corrected data.
02
Match by ID
Feedance matches each row to the product in your main feed by its ID.
03
Add or override
New attributes are added and the ones you supply replace the original values.
04
Export everywhere
The merged feed goes to every channel on each sync. Your source stays unchanged.

Use cases

Fix and extend product data without a dev ticket.

Correct titles

Replace weak titles for specific products from a sheet.

Add sale prices

Send discount details your main feed does not carry.

Label campaign products

Group products for a seasonal campaign or event with a custom label.

Inventory management

Keep a list of low-stock or discontinued items and filter them out of your feed.

See how Product Filters use ID lists

Related features

Works with Supplementary Feeds

Product FiltersInclude or exclude products from each channel export.Learn more Feed RulesText, math and currency rules on any field, per channel.Learn more Channel ExportsOne source feed, tailored for 200+ channels.Learn more GA4 Performance DataViews, add to carts and purchases per product.Learn more

FAQ

Questions about Supplementary Feeds

What a supplementary feed adds and how Feedance merges it.

What is a supplementary feed, and how does it work?

A supplementary feed is an additional product feed that enhances your primary feed by providing missing or enriched data. It does not replace the main feed but adds attributes such as better descriptions, high-quality images, custom labels, or localized pricing. Feedance allows businesses to merge multiple feeds into one, ensuring comprehensive and enriched product data for advertising platforms and marketplaces.

How is Feedance’s Supplementary Feed system different from Google Merchant Center’s?

While Google Merchant Center supports supplementary feeds, it has limitations on data structure and processing. Feedance goes beyond by enabling multi-feed merging, product tagging, and direct data enrichment at the source, eliminating the need for manual edits in platforms like Google Merchant Center. It also allows flexible feed synchronization across multiple ad platforms and marketplaces.

What kind of data can be added using a supplementary feed?

A supplementary feed can enhance your primary feed with: Additional product descriptions and specifications. High-resolution images and alternative product visuals. Custom labels for better campaign segmentation. Updated pricing, promotional details, or discount information. Localized inventory data for regional availability

Can I use multiple supplementary feeds with different sources?

Yes, Feedance allows you to merge multiple feeds from various sources, such as ERP systems, inventory management tools, pricing databases, and external content feeds. The system ensures that all product data is consolidated and optimized before being exported to advertising platforms.

How does product tagging in Feedance help with feed management?

Feedance uses automated product tagging, allowing businesses to efficiently categorize and filter products. This enables: Smarter segmentation for different ad campaigns. Dynamic product grouping based on category, stock levels, or sales trends. Better customization of data exports to match platform requirements