There are different types of Google product data feeds, each of which serve a different purpose. The Google Shopping Feed contains all your products’ information and attributes and is the data file you submit to Google Merchant Center.
In order for Google to accept your products, your shopping feed needs to adhere to the channel’s very specific (and sometimes changing) set of rules and requirements.
Success in Google Shopping ultimately begins with the quality of your product data feed.
This guide from Productsup discusses:
– Google’s key feed specs and requirements
– Tips from Experts
– Optimization opportunities