Newbie Question: Correlation when no matching elements exist

I have a request with an order number that gets sent to another BPM for a lookup. If the order number exists, the called BPM responds with returnCode=0 and the list of order contents (along with the order number).
However, if the order number does not exist, the called BPM returns just one element returnCode=1 and nothing else.
How can I create a correlation in this situation? One simple solution might be to change the response to include order number whether the order exists or not.
But, I am wondering if XI (3.0 SP13) has any other way of generating its own correlation-ids or keys (pardon my usage of terminology if it's incorrect) - instead of depending on defining the matching elements in the involved messages?
Thanks,
Badari

Hi,
there's only one way:
you need to send it and receive it
you can either you the order number
in request and response
or you send a guid (which you can generate youself
in the mapping)
but it will have to go as order number
in request and response
so it's more or less the same
but you need to create the GUID aditionally
Regards,
michal
<a href="/people/michal.krawczyk2/blog/2005/06/28/xipi-faq-frequently-asked-questions"><b>XI / PI FAQ - Frequently Asked Questions</b></a>

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null
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[svn:fx-trunk] 14009: DataGroup.getVirtualElementAt() needs to revalidate the element when the IR already exists but the data changes .

Revision: 14009
Revision: 14009
Author:   [email protected]
Date:     2010-02-05 12:53:05 -0800 (Fri, 05 Feb 2010)
Log Message:
DataGroup.getVirtualElementAt() needs to revalidate the element when the IR already exists but the data changes.
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Message was edited by: David_x

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We have 48 versions of JRE running in on XP IE6 in
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Newbie Question: Correlation when no matching elements exist

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