The plugin adds google analytics ecommerce tracking function to K2Store. The plugin sends the transaction data to the Google analytics.
This enables you to keep track of your customers and their behaviour thus enhancing your understanding and also implement better marketing efforts.
Before installing the plugin, you should enable the ECommerce tracking in the your Google Analytics Account. Read more about here https://support.google.com/analytics/answer/1009612
After Installing the plugin, go to Plugin manager and open the plugin. Then enter your Tracking ID (E.g UA-XXXXX-X) and enable the plugin. Now your store will be integrated with Google Analytics.