Originally Posted by
sherlock07
I thought that I had read somewhere that Google no longer exempt stores or users, each listing has to be exempted in it's own right.
Someone else may know better.
Just found this on google.
Enforcement of new Google Shopping Feed Specifications
For accounts that are currently exempted from requiring unique product identifiers, Google Shopping will start enforcing these new requirements for unique product identifiers on July 15th, 2013 in the US, and September 16th, 2013 in all other target countries. Enforcement for all other accounts will start July 15th, 2013 for the US, France, Germany and the United Kingdom, and September 16th, 2013 for all other target countries. Non-compliant items might then be disapproved and disappear from Google Shopping.
Account level exemptions for unique product identifiers won’t be supported after the above mentioned dates – the 'identifier exists' attribute should be used instead.