I am trying to create a Simple BPL. I need a BPL that gets a stream container moves to the end of the stream and then add a sting to the end of the stream and then sends it to a business Operation.

I am using the EnsLib.File.PassthroughService class in the business service, this business service will accept a text file from a location and pass it through to the BPL as a stream.  I have been trying to work with the BPL in the GUI and I have been reading the documentation and trying to get it to work but I can not I continue to get errors and I am not sure why. 

I will attach the Photos of what I have been trying, I think there is a problem with my call action because when I try and trace the message the context of the file does not even make it to the business operation.

Below you will find the BPL, I do not think it should be super difficult however I can not get it to work. I have been reviewing the documentation but it has not helped. I still can not get it to do what I want it to do. 

Any help that you can provide would be very helpful.