Routing messages in BPM

Hi,
I have the following scenario:
I send an IDOC from SAP R/3 to PI. In PI this IDOC is sent to a BPM.
In the BPM an select-statement is performed to get additional data from an external database
Then a mapping is performed and I have to update the same database with the new data.
Now it is getting more complicated because I have 2 sending R/3 systems and 2 receiving external databases, but I have only 1 PI system
So,
System A ---> PI system Z --> select-statement in database X --> PI system Z --> mapping --> update database X
System B ---> PI system Z --> select-statement in database Y --> PI system Z --> mapping --> update database Y
It is possible to route the select-statement to the correct database using Context-objects in the receiver determination, because SNDPOR is still filled with the R/3 Port. After the database select this context is not available anymore. So I can not route the update statement anymore.
How can I fill context objects with the correct data?
Thanks
Ron

Hi Jaishankar,
The BPM looks like this
Receive step --> receiving the IDOC in the BPM
Synchronous Send Step --> select statement to database
Transformation Step --> to determine the database updates
Synchronous Send Step --> update statement to database
In the receiver determination (configuration) of the first synchronous send step I can use the Context Object SNDPOR, because this contains the port of the sending system (eg SAPA or SAPB). With this information I can find the correct receiver (eg when SNDPOR = SAPA go to database X)
But in when I arrive at the second send step SNDPOR is nog filled anymore. So I don't have the possibility to find the correct database.
Is there a way to store this info somewhere in context objects?
ROn

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jgosney,
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Routing messages in BPM

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