In the older NVP/SOAP API, there was a clear return in every api call of "CORRELATIONID". We would log this with every api call for internal monitoring/debugging and correlating calls to the merchant terminal. Very useful.

We are trying to find such an ID in the return from the newer Orders / Payments v2 REST APIs. Is there one? We noticed that upon an ERROR condition (only), there is a noted "debug_id" which the documentation states is "The PayPal internal ID. Used for correlation purposes.". Would this be the only reference made?