Hey @joxhn10
Thanks for contacting support.
You must provide an actual stock value to eBay, they require it, you cannot have unlimited stock. So your options are the following:
1.) Provide a quantity in the quantity field of the edit product page in Woocommerce when viewing each variation. This quantity value will be sent to eBay when listing items to eBay through WP-Lister.
2.) Or for eBay, you can use the “Custom quantity options” in the listing profile to provide custom stock levels for your eBay listings.
If you don’t see any “Quantity” or “Stock” field when viewing the “Variations” tab of the “product data” section in the edit product page, you will need to make sure you enable the global stock management setting in Woocommerce.
Kind regards,
John