File access Permission numeric value 640

Hi,

I am picking up the files from one ftp directory. The file has access permission with value 640. When I am connecting to FTP Server with user id & passwrd I can move the files from from the directory to Arch directory. But when I am testing this with XI it is showing error in Adapter monitoring as "FTPEx: 11260001.bwh: The file access permissions do not allow the specified action".Any suggesting on this.

Regards,

Daniel.LA