A polling service problem

I set up a file polling service.I want to get the content of file in the inbound directory .I successful get “ffdata” and publish it,in the service which subscribes the document,I use convertToValues to parse the “ffdata”,but i cannot get the content.

Have you tried using the name “ffData” instead? (Note the capital D.) The documentation on the flat file package is pretty limited when it comes to details like that.