failed putting file on sftp server.

Hi All,

I have created a file to file outbound scenario, where file gets picked from SAP ECC and gets posted on SFTP server, there is no mapping involved, hence no objects in ESR. (PI 7.4)
Both sender and receiver communication channels show up and running in communication channel monitoring, although for receiver channel I get following error:
Message processing failed.Cause: javax.resource.ResourceException: 4: Putting /*******(file path in sftp server) failed.
I checked all the parameters, even checked if there are all authorizations/space on sftp server for incoming file, but cant find the cause of error.
What could be the problem?
Please help.

Best regards,
Varsha.