For future reference to all those that want to remember in what order maps and pipelines get executed on receive and send ports:
One-way Receive Port:
End system –> Receive Adapter –> Receive Pipeline –> Inbound Map –> Message Box
Request Response Receive Port:
End system –> Adapter –> Receive Pipeline –> Inbound Map -> Message Box -> Outbound Map –> Send Pipeline –> Adapter –> End System
One-way Send Port (static and dynamic):
Message Box –> Outbound Map –> Send Pipeline –> Send Adapter –> End System
Request Response Send Port (static and dynamic):
Message Box-> Outbound Map –> Send Pipeline –> Adapter -> End system –> Adapter –> Receive Pipeline –> Inbound Map -> Message Box