ve deleted two m2e pro accounts and moved active listings into a unique set of listings. After making this move, on some active products on ebay or blocked, when I modify or republish my ads I get the error: "Instance does not exist." Also, after updating m2epro, the synchronization is no longer set. I also need that all active products on m2epro and ebay be the same
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That's why we advise our clients to use a service called [url removed, login to view] They take care of all issues and upload to multiple marketplaces.