Message SAP XS802 - No delivery to &, as recipient unknown

Diagnosis
The message from the node could not be delivered to recipient &V1& asthe recipient is unknown.

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

Procedure
Check the recipient address, correct if necessary and send the messageto the correct address.
If the node is an SAP system, the address &V1& is not contained inaddress management or SAPoffice exception management. In this case, youshould maintain the address here.
If the node is not an SAP system, you must maintain the address in theappropriate system.