Using correlation with asynch RFC - Please Help!

Question

Hi !
We have this scenario:
1) receive asynch messageA
2) transform messageA to messageB
3) send ASYNCH RFC messageB
4) receive RFC messageC
5) switch condition based on messageC
5-ok branch) send messageA
5-err branch) throw exception
We have only 3 containers, they are all abstract interfaces: messageA, messageB and messageC.
We need to correlate steps 3) and 4), to match the returning messageC with the corresponding sent messageB.
Is it ok to complete "Activate Correlation" in Send step 3) and only "Use Correlation" in Receive step 4), both with the same "name" ??
how do we correlate different message types? (messageB <> messageC) do we need to use a container to correlate?
Thanks !
Matias

Answer 1

Matias,
You are right..u need to activate correlation step 3 and use it in step 4.
Correlation between diff msg types happens this way..
when you define a correlation...u've to defien the fields of the correlation, and the participating msg interfaces and how each msg interface populates/reads the correlation fields
eg.
Correlation Name: MatchPO
Definition:
PO_Number XSD simple Type xsd:string
Participating Interfaces:
MI_Purchase_Order
MI_Sales_Order
PO_Number = MI_Purchase_Order/Header/PONUM
PO_Number = MI_Sales_Order/Header/Sales/PONR
to define the correlation...u need to switch to correlation editor from process view in Integration Process editor
hope it is clear now..
praveen