Hello everybody, I'm working with Google shopping at the moment to get some critical errors out of the way. The errors have to do with the GTIN, MPN and Brand atributes. There where missing some which i've added and they now work perfect. Thing is, for some products i don't have a UPI so i'll have to add the following for certain products: [identifier exists] and give it the value FALSE. But where do i put this? Do i need to add it manually into the productfeed, and where exactly? Or is there another way? I'm looking forward to your replies! Kind regards, Mxl