This CucsTrigAckChangeDetails value carries a more granular breakdown of exactly which sub-properties changed to trigger this pending acknowledgment. Where the changes field tells an admin the broad category of change, this field is what supports drilling into specifically which attribute, such as a particular boot-order entry, was edited, which is useful when a service profile has several concurrent pending edits. A value flagging a specific boot-order attribute lets the reviewer confirm exactly which boot entry changed.