Hello Jens,
Yes I am getting the payload from CRM to OnDemand. So according to my understanding the message is sent successfully from CRM to COD without any mapping issue on HCI. Please correct me if I am wrong. Also I am using the standard mapping in HCI. PFA header part on the payload coming into SAP OnDemand.
Note: I have hide the System ID for both CRM and COD which are coming up as expected.
-Regards,
Chandan.