Shopify and platform feeds
Every platform ships a Google integration, and every one of them produces a feed that is valid and thin. Valid gets you approved. Thin is why you lose auctions you should win.
What the integrations do well
- The required attributes: id, title, description, link, image, price, availability.
- Keeping price and stock roughly in sync with the store, which removes the largest class of disapprovals.
- Variant structure, usually with a correct item_group_id.
- Not breaking. This is worth more than it sounds.
What they leave empty
Everything that is not already a field in the platform’s product model. That typically means google_product_category guessed or missing, product_type taken from your internal collections, and colour, material, pattern, age group and gender left blank unless a merchant filled them in as variant options.
Titles are the other gap. Platform integrations send the product title as written for the storefront, which is written for someone already on the page. It is rarely the title that wins a Shopping match.
A platform feed that passes Merchant Center validation with zero errors can still be missing every attribute that decides which queries you appear for. Approval is a floor, not a score.
Where to intervene
- Supplemental feeds. The clean way to add or override attributes without replacing the primary feed the platform maintains.
- Feed rules in Merchant Center. Good for mapping and simple transformations; awkward for anything conditional.
- A feed layer between store and Google. The right answer for a large or multi-channel catalogue, because the same enrichment then serves Meta and TikTok too.
Keep one source of truth
The failure mode of feed tooling is a catalogue that exists in three slightly different versions, and nobody knows which one is right. Whatever layer does the enrichment should read from the store and write to the channels, not become a second place where product data is edited by hand.