If you receive a “404 (Not Found) error was returned when accessing this feed” this means the feed is not found.
Please make sure the feed exists at the URL provided or provide an alternative feed that exists at the URL source.
Oftentimes this error appears because the URL was incorrectly typed or the link that was selected points to the wrong place.
Once completed, import your product feed to update the changes made.
You should follow these steps to update your feed:
If you require further assistance contact firstname.lastname@example.org.