Message SAP XS822 - Message in node cannot be transferred to communication system

Diagnosis
The message cannot be processed in the node as the sub-communicationsystem cannot be reached.

System Response
Processing was terminated.
Additional information of the node used (in the system language of thenode):
V4

Procedure
Notify your system administrator. If a trace exists for the node, useit to find out why the communication system cannot be reached. Theneliminate the error.