SAP Message WZ385 - Could not be sent: RFC problem

Diagnosis
When sending messages in the name of the user of the RFC destinationWORKFLOW_LOCAL_ccc (ccc to be replaced with the current client), an RFCwith RFC destination WORKFLOW_LOCAL_ccc is executed. This failed withan RFC error.

System Response
Messages not sent.
INCLUDE NA_WF-ADMINISTRATOR OBJECT DOKU ID TX