via <a href="https://developer-docs.amazon/sp-api/changelog/sp-api-updates-new-shipment-notification-for-tracking-number-changes-in-mcf-new-eu-customs-product-identifiers-requirement-and-new-enum-value-for-finances-api">Selling Partner API</a>
SP-API Updates: New Shipment Notification for Tracking Number Changes in MCF, New EU Customs Product Identifiers Requirement, and New Enum Value for Finances API