# “Deep” API Integration (“Push”) By “deep” integrating the real-time tracking experience you are taking full responsibility. **The complexity of this integration must be fully understood.** All necessary information and features must be considered. Additionally, the integration must be updated promptly when Bettermile provides new features. **Bettermile offers a subscription service (“Push” via webhook) to provide you with all the needed data and in-time updates to enable you to create a unique and wholesome tracking experience.** ## Requirements - You need to consider **all** information and features when “deeply” integrating: - The ETA Time window - The number of Remaining stops - The time remaining for delivery - The driver's and consignee's location on a map - The shipper and consignee information - Proactive communication on time window changes - Deposit permissions - Redirections to a neighbor - Redirections to a Parcel Shop or Locker - Send a note to the drive - You must be able to provide a state-of-the-art tracking experience - You must be able to track the overall performance and the detailed usage of the user interface and features - You must offer a rating for the consignees (More details in next section) - You must regularly update the user interface to meet the latest state-of-the-art standards and stay best-in-class consistently ## Technical Integration - Use Availability Webhook to understand when the parcel becomes available for tracking. - The integration must - Support retry mechanisms and idempotency to handle transient failures without data duplication or loss - Ensure 99.9% uptime and processing of webhook events within 500 milliseconds to avoid piled-up messaging queues that would delay invites to consignees - Industry incident management best practices including monitoring, alerting, and duty shifts during peak times - Use the subscription service to get tracking information for the parcel. This includes shipper and consignee address, delivery information, ETA timestamps, and much more - Implement features to ensure high UX