Google is making it easier for ecommerce stores to have their products showcased in the shopping tab in search results. An update to Google Search Console makes it possible to list products in the shopping tab without submitting a product feed or re-verifying your website.
To take advantage of this new feature, ecommerce store owners can connect their website to a Merchant Center account via Search Console. If you don't have a Merchant Center account, you can create one using a simplified sign-up process.
For more details on how to take advantage of this new feature, check out the blog post from Google developers linked below.
After connecting your Merchant Center account to Search Console, all you have to do is keep your structured data up to date to get products listed quickly.
If you sell multiple variations of a product, and they each have a dedicated webpage, it’s advisable to use unique structured data for all items. Previously, Google didn’t specify whether variants of products would benefit from having unique structured data. Now we know there’s a benefit, at least when it comes to structured data.
This information comes from Google, in a blog post from November 2020.