SAP Message XS612 - Currently no delivery to &

Diagnosis
The message was processed correctly in the SAP system. However, asubsequent system reports that the message cannot be delivered torecipient &V1& at this time.

Information from External System
IF &V4& <> ''
V4v3
ELSE

Procedure
If you try to resend the message at a later time, it is possible that itwill be delivered successfully.