Shopify uses variant_id for products, that's a unique identifier for every Model of the product (for example unique measurements or colors). You will discover the variant ID by checking your Shopify product details or using a Shopify application that exports product details. Ahead of applying these checkout inbound links in https://elliotskbpe.bloggerswise.com/39715293/the-best-side-of-set-up-online-store-with-prestashop