Google has announced that starting today you will be required to submit ‘gtin’ and ‘brand’ attributes for products in ‘new’ condition from a designated list of brands. You can see the list of brands here. This is a requirement for items targeting Australia, Brazil, the Czech Republic, France, Germany, Italy, Japan, the Netherlands, Spain, Switzerland, the UK, and the US. Google has also said that they will be expanding the designated list of brands in the coming months.
You can review all the items that are at risk of disapproval in the Diagnostics tab within your Google Merchant Center.
For those of you that may not have correct, complete GTINs, Google advises against creating your own, as their systems will detect this and disapprove your offers. Products that are submitted with invalid GTINs will be disapproved.
Read the official announcement here.