I am having a real hard time getting the Google product feed approved. So far out of over 4,000 products only 2 are active. Amongst other errors this is one of the main ones... Product identifiers provided but 'identifier_exists' set to false. Anyone got any ideas ?
Did some more reading about identifiers, and found this on Google: from https://support.google.com/merchants/answer/160161?hl=en So this should be solvable if you can copy your ean codes over to the gtin column in phpMyAdmin.