An array of shipment_event objects is included in shipment responses and webhooks.

idnumber (double)The ID of this object in Delivery Hub.
shipping_account_idnumber (double)The ID of the shipping account used for this event.
timestampstringThe date and time when the shipment event occured.
typestringThe type of shipment event. Possible values include: status_update checkpoint carrier_assignment_failure
valuestringThe name and description of the event that triggered this webhook.
with_shipping_rulesbooleanIndicates whether shipping rules were applied to this event.