WooCommerce upload error – ‘Failed to upload listing. Invalid or Duplicate SKU specified’

Overview

This article covers the "Failed to upload listing. Invalid or Duplicate SKU specified" error that can occur when uploading or updating listings on WooCommerce.

Cause

When StoreFeeder creates a WooCommerce listing, it first creates the parent SKU on the channel, uploads images, and then receives a response from the server with the listing ID of the parent so it can attach child variants. If there are many images or variants, or a server-side issue occurs, WooCommerce can take longer than usual to respond and the connection is closed before all data is received. The connection is closed for security reasons.

Fix

Get the WooCommerce product ID from the channel and enter it manually in the 'WooCommerce product ID' field on your listing:

Alternatively, if that does not work, you can finish the listing directly in WooCommerce, delete it in StoreFeeder, and StoreFeeder will download it back for mapping.