Add metafields automatically to orders, products and customers matching certain criteria. The app is really straightforward. You just need to setup your rules and the app will take care of adding metafields to your orders, products and customers that match the criteria. Forget about adding metafields manually and save a huge amount of time! Applying metafields helps you organize your store in a better way. Also provides a way to improve your online store using metafields in Shopify themes 2.0.