Howto dynamicly determine different communication Profile via payload values using HTTP Sender Channel

Hi all,

I've following scenario

3rd Party System (HTTP_AAE Sender)  --> PO 7.40 (IDOC_AAE) --> SAP ERP

A 3rd Party System has only one Gateway which is sending messages via HTTP Post to PO-System using the parameterized URL Format explained in SAP HELP

The challenge is that this 3rd Party System is sending Messages for two different plants and I want to see wether it's plant A or plant B (different iFlows) but due to the HTTP-Sender-URL I can only use "hard"coded SenderSystem Parameter, e. g. SenderService=SystemA and therefore all Messages are using the iFlow for SystemB

Of course I can use EDI_DC40 Segment in IDOC (which I'll send to SAP) to Change the Logical System via Message Mapping (and so in the target System everything Looks o.k.!) but in Messagemonitoring it is not possible to distiguish between those Systems because the use the same Sender channel.

Is there any possibility to achive this?

Thanks very much for your help.

Christian