Error in Message Monitoring.

GM All,

I received an alert saying:

Failed to delete file 'ZXYZ.txt' after processing. The FTP server returned the following error message: 'com.sap.aii.adapter.file.ftp.FTPEx: 550 Unexpected reply codeZXYZ.txt: Permission denied'. For details, contact your FTP server vendor.",

and when I opened corresponding message id in message monitor, I saw the file successfully delivered, but still showing an error: Not sure whether this still need to be considered or ignored...if need to be considered then please let me know how can it be resolved...fyi it is ftp to ftp scenario with out ESR objects.

Thanks in advance!