Request: Adding Google Product Categories to Store Products in Facebook Catalog

Feature Request|We are collecting votes for this issue
While you can add your store products to your Facebook catalog, it is currently not possible to include Google product categories. As a result, these products in your catalog won't be classified according to Google's categories. 
We do not recommend adding Google product categories manually as the information will be automatically deleted.
We are always working to update and improve our products, and your feedback is hugely appreciated.