Please clarify something for me:
When I make an outbound REST call through the MID Server, I can see both output and input records created in the ecc_queue table. In this case, the response_to field of the input record is populated.
However, when I make a direct REST call to the external URL (not via the MID Server), I still see both output and input records in the ecc_queue table, but the response_to field in the input record is null.
Can you please explain when the response_to field in the input record is populated, and what is the logic behind it?
