Why do my products show an error as "Inventory is less than threshold value"?

Why do my products show an error as "Inventory is less than threshold value"?

Etsy requires that the inventory for a product be at least 1 in order to list it. The default threshold value is set to 0, meaning products with no inventory cannot be listed. To resolve this error, add inventory to your products in Shopify, and then try uploading them to Etsy again through the app.