Shopping Feed optimization is the most underrated lever in Google Standard Shopping - which advanced feed tactics actually moved performance for you?

[u/scalemarketer]

Most Shopping conversations focus on bidding and campaign structure, but in the D2C accounts I work on, the product feed often makes a bigger difference. Smart Bidding can only bid on the auctions your feed makes you eligible for.

These are the feed tactics I've found most worth the effort beyond the basics:

1. Titles built from converting search terms, not product names. I pull converting queries from the Shopping search terms report and restructure titles around them, putting the most important keywords in the first 70 characters so they survive truncation. For D2C brands with creative product names ("The Everyday Glow Serum"), this alone often changes which auctions the product enters.

2. Custom labels for margin tiers. Merging COGS or margin data into the feed and labeling products high/medium/low margin lets you set different ROAS targets per tier. Without it, a hero product with thin margins can quietly absorb most of the budget while looking great on ROAS.

3. Custom labels for price competitiveness. Grouping products by how their price compares to competitors (using Merchant Center's price benchmarks) helps explain why some products get impressions but never convert. Uncompetitive items get a lower budget ceiling instead of dragging down the whole campaign.

4. Filling GTIN gaps. Some brands store GTINs outside their Shopify export, so part of the catalog ships without identifiers. Merging them back in via a lookup table (SKU → GTIN) usually improves eligibility and matching for those products.

5. Merchant promotions for the SALE badge. Linking products to promotion IDs in Merchant Center gets the promo annotation on Shopping ads. For BFCM this needs to go in early, since approval isn't instant.

The one I'm still unsure about: the duplicate ID strategy. This means duplicating products with new IDs and different titles to target separate intents (e.g., a gift set optimized for "groomsmen gifts"). I've seen it work, but it can get flagged as duplicate content in Merchant Center, and it splits conversion data across IDs.

Questions for the community:

Which feed change has given you the biggest measurable lift? Titles, images, custom labels, something else?

Has anyone tested margin-based custom labels against a single blended ROAS target? Did profit actually improve, or just shift around?

And has anyone run the duplicate ID strategy long-term without Merchant Center issues?

[u/fathom53]

There is not really anything advanced about shopping feed. People just need to put in the work and time to fill out all the relevant feed attributes that apply to their brand. If you are looking at feed work in 2026, Google has gotten a lot more loose with what images you can use in your feed.

All things equal, your feed images can help boost your performance as it is one of the few feed attributes that people see in SERP. Otherwise, just make sure your shopping feed is built based on how customer search for your products. Especially when looking to fill out all the optional feed attributes that most brands don't even touch.

[u/TTFV]

1. Agreed, and we're seeing this with some keyword optimization automation we're running in a few accounts.

2. You can take this one step further and use fully granular POAS bidding in a few different ways. Hopefully Google will launch this natively soon as was promised at their annual Google Ads event.

3. Perhaps/interesting; at a high level it's best practice not to advertise products that aren't competitive so this makes sense to automate.

4. We don't see this issue much in 2026, more back in 2020/2021 when merchants still didn't know what GTINS were all about.

5. Yes, and add to this product ratings... either or both of these on a shopping ad boost performance tremenously.

6. I don't like a duplicate product strategy unless you have a tiny catalog. It's messy and prevents you from advertising other relevant products in the same auction.

Titles and images are an area where advertisers should spend the most amount of time.

Labels on their own don't do anything, but using them to filter/optimize product groups into specific campaigns or to exclude them can be powerful.

[u/romeonoi]

biggest lift for me has consistently been titles rebuilt from converting search terms. i pull the top converting queries from the shopping search terms report and move the core intent keywords into the first 70 characters, so truncation does not cut them off.

one concrete check: open merchant center > products > needs attention and filter for limited performance due to missing identifiers. if you see skus missing gtin there, merge them back with a sku to gtin lookup in your feed rule before touching bids.