«Google Merchant» builds a product feed — a special file with the list of your products — for upload to Google Merchant Center. Through it your products get into Google Shopping and the free product listings in Google search.
What you see
The page shows the «Number of products» that go into the feed (for example, 125) and links to open the ready feed per language: «Open product feed (uk)» and «Open product feed (ru)». Each link opens an XML file in a new tab — this is exactly the address you add in Google Merchant Center.
How it works
Copy the link to the language feed you need and paste it into Google Merchant Center as a data source. Google re-reads the file regularly, so price changes, availability and new products are pulled in automatically, without a repeated manual upload.
Why it matters
Google Shopping and free product listings are an extra traffic channel to your products. The shopper sees the photo, price and name right in search and arrives already ready to buy.