FTP Adapter Write To File-File Name Pattern not taking the pattern specified in mapper

Summary

Want to create dynamic File name to be written to FTP folder but the dynamic file name provided in the mapper is not used by OIC

Content

Using FTP Adapter to write a file to SFTP server

The File name should be dynamically generated in the flow depending on the input data for the file 

The File Name has been mapped in the FTP mapper but the file that is written to FTP uses the File name pattern specified in FTP Adapter Write File action

The File Name Pattern in Write file is mandatory and cannot be set as blank