You obtain a message similar to this for your product feed:
Error 20005: SKU: XXX-YYY - Cannot associate image with an existing product. For more details, see http://sellercentral.amazon.co.uk/gp/errorcode/20005
or
Error 20005: SKU: XXX-YYY - Images could not be associated with this SKU. This error may be resolved by addressing other product data errors. For more information, see: http://sellercentral-europe.amazon.com/gp/errorcode/20005
The feeds are sent in meantime. The treatment on Amazon can be parallels.
Both Feeds, products and image, are processed in same time onto two different servers.
As the processing are parallels, the product doesn’t exist yet on the server which treat the image.
By this way, the server reports you an error “Unknown SKU”.
The usual fix is to send another image feed after your product creation, in synchronize mode with the “Send Images” option thicked.
