Google Adds a New Recommended Field CanReschedule for Package Tracking SERP Feature
https://developers.google.comPackage tracking is a feature that displays package tracking related information on Google. Google Package Tracking makes real-time calls to a RESTful JSON or XML API to retrieve package tracking information. They have added a new recommended field CanReschedule
to their documentation. You will need to opt-in to the Early adopters program to get this feature enabled.