title: How to integrate woocommerce software addon to a plugin
body: <p>I have bought this woocommerce plugin Software Add-on and installed this on one my WP sites where I sell my premium plugins and themes. It works fine when a product is purchased and the order email contains a license key generated by this plugin.</p>
  
  <p>My question is how to incorporate or integrate this plugin API to a plugin so that end users ( my product buyers) can enter the key in a form or so and get my plugin activated. I find one <code>test-script.php</code> and a <code>test-script-local.php</code>. But I do not find any doc or guidance as how I can incorporate this in my plugin. My plugin is simple - it has the plugin php file, one functions.php, one css and one js file. </p>
  
  <p>Any idea or guidance will be much appreciated. </p>
  
  <p>Thanks</p>