Ok you get this
use of unconstructed message "Message Name" .
1) This means what the error message says you are using an unconstucted message in a send shape without creating it
2) You have indeed constucted the message - Biztalk still complains . Do you have parallel actions in your orchestration . Is it possible that you are using the message whihc was consturcted in a parallel shape and being used outside it. Now Aren't you glad Biztalk complained !