Below is from a prior post with some of my own additions, it assumes you are
using orchestration:

In your orchestration (this solution does require Orchestration) set the
FILE.ReceiveFileName to what you want the file
name to be in a Message Assignment Shape after you create the outbound
message:

InvoiceMessage(FILE.ReceivedFileName) = "Test12345.xml" 'This could be more
complicated (see below).

in your send port under FILE Transport Properties

File name: %SourceFileName%

Hope this helps you.

This trick was from Microsoft Community Orchestration, answer posted by Bill
Chesnut.  Above from Post from Microsoft Newsgroup 6/13/2004.

Following additional examples by Neal Walters:

I recently did a demo of this in class and it was remarkable easy.
I was receive a "StubbornPO" and converting it to an 'EasyPO" using a
Transform shape (map).  I added a Message-Assignment shape after the
Transform and added the following line of code:

mEasyPO(FILE.ReceivedFileName) = mEasyPO.PONumber + ".xml";

Note that "PONumber" was a distinguished field in my schema.

I suppose if you wanted to further add the %MessageID%.xml in the send port,
you could leave the ".xml" out in the orchestration code above (you probably
don't want two .xml's in your filename).

I did prefix the message with additional text and the additional text got
added just fine in front of the "FILE.ReceivedFileName".  So for example in
my send port I set filename = "OrchLargePO_%SourceFileName%" and since my PO
number was "STU-002" the ultimate filename was "OrchLargePO_STU-002.xml".

Later I will see what effect this has on HAT and tracking.

Neal Walters
http://Biztalk-Training.com

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