file to file from SAP to legacy system

Hello,

I am trying to send a file from SAP system to NON sap system using simple file to file scenerio.

File has to be picked from some path on the application server than it has to passed to legacy system.

There seem to be some problem,

when I check the communication channel monitoring, I get the following messaged with 2 error messages.

Time Stamp Status Description

25.07.2010 14:40:33 Success Send text file "SAPLGCUSPPAYSTUB20071018173147.TXT" from FTP server "172.17.102.5:\saplgc\usp_paystub", size 476 bytes with QoS EO

25.07.2010 14:40:33 Success Application attempting to send an XI message asynchronously using connection AFW.

25.07.2010 14:40:33 Success Trying to put the message into the send queue.

25.07.2010 14:40:34 Success Message successfully put into the queue.

25.07.2010 14:40:34 Success The application sent the message asynchronously using connection AFW. Returning to application.

25.07.2010 14:40:34 Success Confirmation mode test found. File will be resent next time

25.07.2010 14:40:34 Success The message was successfully retrieved from the send queue.

25.07.2010 14:40:34 Success The message status set to DLNG.

25.07.2010 14:40:34 Error SOAPFault received from Integration Server. ErrorCode/Category: XIProtocol/NOT_AUTHORIZED_FOR_PROC; Params: XIAFUSER; AdditionalText: ; ApplicationFaultMessage: ; ErrorStack: User XIAFUSER has no authorization to process messages

25.07.2010 14:40:34 Error Transmitting the message to endpoint http://tcsxidev:8000/sap/xi/engine?type=entry using connection AFW failed, due to: com.sap.aii.af.ra.ms.api.RecoverableException: Received HTTP response code 500 : User not authorized for message processing.

Could you pleas tel, what went wrong and what has to be done to rectify this problem.

Regards,

Lokesh