Resolution:
Description:
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How to set @extId properties on events created from a (JMS) channel?

Environment:
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TIBCO BusinessEvents 5.x
All Operating Systems

Resolution:
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When sending the EMS message, defining a JMS Application Property with name “_extId_” will map the extId in the Event automatically.

Note: This is not recommend as the extId uniqueness will be harder to enforce. If using this  workaround do remember that the extId needs to be unique.