Add your feed to Google Merchant Center

Google Merchant Center lists your products in Shopping ads and free listings. Buinbu XML Feed produces the format Google documents for feeds: RSS 2.0 with the g: namespace, one item per variant.

Before you start

• A Merchant Center account with your store’s website claimed and verified.
• Products with a vendor (brand) and, where they exist, barcodes (GTIN).

1. Create the feed in Buinbu

1. Open Export and choose Create feed, then pick Google Merchant Center on Feed templates.
2. Under Feed name and market pick the Market (country) whose prices Google sees on your product pages and keep Currency on that market’s currency. If the currency does not match the market, the run fails with Currency mismatch and the file is not updated.
3. Under Product selection keep Leave gift cards out on and leave out-of-stock products in.
4. Under Filters tick saved filters if you want to narrow the products, change prices or rewrite fields (Filters, price rules and stock).
5. Set the Refresh frequency and choose Create feed.

2. Copy the feed URL

The feed page opens with “Feed created. The first file is being generated.” Under Feed URL choose Copy URL. The URL ends with .xml, needs no username or password and allows Googlebot.

3. Add the feed in Merchant Center

1. In Merchant Center open Products and choose to add products from a file. Google renames these menus from time to time; look for the option that fetches a file from a URL on a schedule (“scheduled fetch”).
2. Paste the URL from step 2.
3. Set the fetch frequency to daily, Google’s default, and pick a time after your feed’s refresh. Save.

4. Wait for the first fetch and review

Choose Fetch now for the first run. Processing takes minutes; the first review of new items can take up to three business days. Then open Diagnostics and fix errors first, warnings second. In Buinbu the feed page reads “Last fetched: … · Google” once Google has downloaded the file.

How fields map

Google attribute	Shopify source	Notes
g:id	Variant SKU, else shopify_ plus the variant ID	Up to 50 characters; keep SKUs stable, a new ID is a new item for Google
g:title	Product title plus variant name	Up to 150 characters; rewrite with a title template
g:description	Product description as plain text	Up to 5,000 characters; the title when empty
g:link	Online Store URL with the variant parameter
g:image_link	Variant image, else the first product image	At least 500×500 px; Google enforces this from 31 January 2027
g:additional_image_link	Remaining product images	Up to 10
g:availability	Inventory and “continue selling when out of stock”	in_stock, out_of_stock, backorder; preorder for products tagged preorder
g:price	Variant price in the feed’s market	449.00 TRY; tax-inclusive outside the US and Canada
g:sale_price	Price when a compare-at price exists	The compare-at price becomes g:price
g:condition	new	Always new
g:brand	Vendor	Required for new products; missing brands show as No brand
g:gtin / g:mpn	Valid barcode / SKU when there is no valid barcode	g:identifier_exists is no when both are missing
g:item_group_id	Product ID	Shared by a product’s variants
g:product_type	Shopify product category, else product type
g:google_product_category	Google product category field template	Not written without a template; recommended
g:color, g:size	Options named Color, Colour or Renk, and Size, Beden or Boyut
g:shipping_weight	Variant weight	When above 0
g:custom_label_0 to 4	Custom label field templates	Up to 100 characters; campaign grouping

Buinbu does not write g:gender, g:age_group or g:shipping. Google requires gender and age group for apparel in BR, FR, DE, JP, UK and US, and shipping for AU, CA, FR, DE, JP, UK and US unless it is set in the account: set shipping in Merchant Center’s account settings, and add apparel attributes with Merchant Center’s own rules or a supplemental data source.

Refresh: the file refreshes at the feed’s Refresh frequency, and on Growth and Scale also a few minutes after a product or stock change (plans). Google fetches once a day by default; raise it in Merchant Center if your prices change often.

Common problems

Diagnostics message	Cause	Fix
Limited performance due to missing identifiers	Variants without barcode or SKU	Add barcodes where products have one; items without identifiers stay valid with identifier_exists set to no
Mismatched value (page crawl): price	Feed price differs from the product page	Check the feed’s market and the price rules in its filters (rules)
Mismatched value (page crawl): availability	Inventory changed between refreshes	Shorten the Refresh frequency, or move to a plan that refreshes after product changes
Image too small	Images below 500×500 px	Upload larger product images
Missing shipping information	No shipping in the account	Set shipping in Merchant Center account settings

More cases: Feed rejected or products flagged.