Customize product data in your feed

Change what your feed sends to each channel, such as titles, IDs, images and links. Your Shopify products stay unchanged.

Use this when: your feed runs, and you want better titles, cleaner images, ratings or tracking in your ads.

1. Before you start
2. Quick setup
3. Map attributes
4. Rule-based mapping
5. Feed rules
6. Images
7. Product ratings
8. UTM and URL parameters
9. Limits

Before you start

• Create a feed first. See Create a feed.
• Every setting below is saved per feed. Click Save in the feed before you leave the page.
• Changes reach the channel at the feed's next sync. Saving does not start a sync.

Quick setup

The most important fields are on the Settings tab as simple choices. The Attributes tab shows the same values, so a change in one tab appears in the other.

1. Go to Feeds and open your feed.
2. Click the Settings tab and scroll to Product info, below Schedule auto-sync.

3. Choose an option for each field:

4. To use your own data, choose From metafield and pick a metafield, or choose Custom and enter a value.
5. Below Product info, set Identifiers & defaults (GTIN, MPN, Identifier exists, Condition, Gender, Age group) and Shipping.
6. Click Save.

On TikTok feeds, the recommended options are tiktok_item_{{variant ID}} for ID and tiktok_{{product ID}} for grouping.

Under Shipping, choose Use shipping set up in Google Merchant Center (or Meta Commerce Manager) to keep your channel's shipping. Choose Set shipping in this feed to send a price with every product. Enter 0 for free shipping.

To set the Google category, see Map Google product categories.

If you choose Don't group on a Google feed, apparel sold in sizes or colors may be disapproved. Google requires a group ID for those products.

Map attributes

Use the Attributes tab to change any attribute the channel accepts.

1. Go to Feeds, open your feed, and click the Attributes tab.
2. Find the attribute with Search for attribute, or filter by All, Required or Has rules.

3. Click the attribute's value. Type fixed text, or click Insert a variable to add product data, such as {{product.vendor}}.
4. Click View more in a group to see optional attributes. Click Add custom label to add a custom label.
5. Click Save.

Example: set Custom label 0 to "summer-sale" to group these products into one campaign in Google Ads.

For the list of attributes per channel, see Feed attributes.

Rule-based mapping

A rule-based mapping changes one attribute only for products that match your conditions. These are Set attribute rules.

1. On the Attributes tab, find the Rule-based mapping card.
2. Check the rules you want this feed to use, or click Create rule.

3. In the rule window, enter a Rule name and add your conditions under Products match.
4. Under THEN, choose the Field to set and enter its value.
5. Click Add rule, then click Save on the feed.

The rule only changes a field this feed maps on the Attributes tab. Custom labels and the shipping label always apply.

When two rules set the same attribute, the rule higher on the Rules > Set attribute list wins. Drag rules there to change the order.

Feed rules

Rules belong to your store, not to one feed. Write a rule once and apply it to every feed that needs it.

• Exclude — keeps matching products out of the feed. Exclude always wins over Include.
• Include — adds matching products to a feed that syncs Selected products.
• Set attribute — changes an attribute for matching products.

1. Click Rules in the app menu.
2. Choose the Exclude, Include or Set attribute tab.
3. Click a preset under Start from a preset, or click Add rule.

4. Enter a Rule name, or click the generate icon to name it from the rule.
5. Choose whether products match all or any of the conditions, then add each condition: field, operator, value.
6. Under Apply to feeds, choose the feeds.
7. Click Add rule.

Condition fields are Title, Description, Image, Vendor, Product type, Tags, Collection, SKU, Barcode, Price, Compare-at price and Weight. See Rule operators.

Presets include Exclude products priced at 0, Exclude products without an image, Exclude products without a description, Exclude gift cards, Exclude products tagged no-feed and On-sale products.

You can also check rules in a feed's product source. See Choose products.

If a feed syncs all products, an Include rule switches it to sync only the products the rule includes. The rule window warns you before you save.

Images

1. On the feed's Settings tab, scroll to Media.
2. Choose the Main image: Variant image (falls back to the product image) or Product image.
3. Check Include additional images to send the product's other images.
4. Check Resize and crop to a fixed size.

5. Choose a Ratio, such as 1:1 (Square) or 4:5 (Portrait). Choose Free to set the height yourself.
6. Enter the Width from 500 to 5760 px. The default is 1500 x 1500 px.
7. Choose a Crop position: Fit inside, Center, Top, Bottom, Left or Right.
8. With Fit inside, choose a Pad color for the empty space. The default is white.
9. Click Save.

Omega Feed resizes only images hosted on Shopify. Your original images in Shopify stay the same. A Shopify image smaller than your size is sent at its original size.

After you change these settings, every image link changes. All products are sent again at the next sync, and Google may show them as pending while it reviews the new images.

Additional images are capped at 10 per product, or 20 on Meta.

Product ratings

You can send your product ratings to three channels:

1. On the feed's Attributes tab, find the rating attributes in Product details.
2. Map the rating to the product rating metafield from your reviews app.
3. Map the count to the rating count metafield.
4. Click Save.

Ratings on another scale are converted to a 5-point scale (8.4 out of 10 becomes 4.2). A rating is sent only with a rating count above 0.

Google, TikTok, Microsoft and Klaviyo feeds have no rating attribute.

On Meta, removing the mapping does not delete ratings already in your catalog.

UTM and URL parameters

Add parameters to every product link in a feed to track traffic in your analytics tools.

1. On the feed's Settings tab, scroll to UTM tracking.
2. Check Add UTM tracking. Fill in UTM source, UTM medium and UTM campaign. UTM content and UTM term are optional.
3. To add your own parameter, check Add URL parameters.

4. Enter a Url param key, such as "ref", and a Url param value, such as "gshop". The value can include a variable.
5. Click Add URL param for another row.
6. Click Save.

Example: key "Country", value "DE" turns your link into "…/products/shirt?Country=DE".

If a product link already has a parameter with the same key, the link keeps its own value. A UTM key set in Add UTM tracking can't be reused here.

Limits

• Quick setup options, Images and Include / Exclude rules: all plans.
• Custom, From metafield and changes on the Attributes tab: Pro and Max plans. Ratings count as a custom mapping.
• Domain for another market: Pro and Max plans.
• Set attribute rules: any plan can create them; they run only on Pro and Max plans.
• 50 rules per rule type. On the Free plan, rules check your 100 newest products.
• UTM tracking and URL parameters: Pro and Max plans. Up to 10 URL parameters per feed, 255 characters per key or value.
• If you move to a lower plan, a feed that uses locked features is paused.

For per-plan details, see Plan limits.

Related articles

• Map Google product categories
• Edit products
• Create a feed
• Channels, attributes and glossary

Need help? Chat with us from the app.

Updated on: 13/11/2026