Message SAP XS820 - Cannot process message in node, since message cannot be coded

Diagnosis
The message cannot be processed in the node as it cannot be coded.

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

Procedure
Your message contains data that cannot be converted for transport fromthe node. Use the trace to check which data this is, and correct thesetting in the node description.