Home Cloud Cloud Applications CX Commerce 21D Oracle Commerce 21D Configure and Extend Extend the functionality of your store Understand extension features Use the REST APIs Register applications Use webhooks Configure additional sites Develop widgets Create a widget Download widget source code Localize a widget Add custom JavaScript to a widget Upgrade deployed widgets Understand the PubSub library Customize email templates Download and edit email templates Configure search features Configure the order of facet values Machine learning for search Index and Query Popular Searches Search non-catalog data