This table explains the data between CatchFeeder and WooCommerce





CatchFeeder Data   
WooCommerce Data
Catch Marketplace Data
SKU    Depending on how you have mapped your fields this could either be your retailer SKU of your WooCommerce product ID - a number generated by WooCommerce when you create a product

To check what you have mapped to your SKU field in Catchfeeder see this article

To find your WooCommerce Product IDs see this article


Retailer Reference    This is the WooCommerce Variant ID - a number generated by WooCommerce when you create a product

To find your WooCommerce Variant IDs see this article

MPN    This is the Product SKU from WooCommerce

To find your WooCommerce SKU's see this article
MPN Field in Catch
UPC / EAN / ISBNThis can be set up as as a custom attribute of the product.  The name of the attribute must be one of UPC, EAN or ISBN, as appropriate in WooCommerce.

See FAQ UPCs, EANs in WooCommerce
UPC field in Catch