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Correlation data must be used to ensure that each incoming message is received by the process instance to which it applies. The incoming data to a receive task or catch message event is compared to the correlation data in existing process instances to determine whether it applies to that process instance. You must initialize the correlation data with a value, either on the start message event, or subsequently (for example in a script task).
• After the user task, the receive task (Receive Authorization) waits for the correct incoming authorization. To do this, the business analyst associates the OrderRef correlation data field with the Receive Authorization task. When an incoming message is received, the incoming data is compared to the correlation data to make sure that it applies to that process instance.
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Copyright © TIBCO Software Inc. All Rights Reserved |