When creating keys via the API, you need to provide this string. This is used by the API and should be unique to the software you sell. When this product type is selected, a new tab called Software opens in Product data meta box menu. Use this in conjunction with the downloadable type, allowing the user download the product. WooCommerce Software Add-On introduces a new product type called Software that lets you sell license keys. Creating a software product ↑ Back to top More information at: Install and Activate Plugins/Extensions.
Integrate your software/web app with the API (optional).WooCommerce Software Add-On gives you the ability to manage license keys and activation via your store.