Problem enabling HWF(BPEL Worklist) in AIA

Is there a way to check (database, config file etc.) to check if HWF is enabled or not.
I have followed the steps to enable BPM Worklist
Set the EH.INVOKE.HWF property value to true.
Reload updates to the AIAConfigurationProperties.xml file.
But after that when there is an error in my BPEL process , it goes upto AIAReadJMSNotificationProcess , but there it goes to the flow Empty_HWFNotEnabled. And I don't see the error in the BPM Worklist.
Have I missed any step?
I checked the BPEL process for AIAReadJMSNotificationProcess and the function it calls to check HWF enablement is :aia:getSystemModuleProperty('ErrorHandler','EH.INVOKE.HWF',true())= 'true'
Does anybody know what it does?

Hi,
Jus to reiterate.. Ensure you are udpating the below mentioned path.
Access AIAConfigurationProperties.xml located in
<AIA_HOME>/aia_instances/$INSTANCE_NAME/AIAMetaData/config.
Try writing a sample process to get the value through AIA xptah function.
aia:getSystemModuleProperty('ErrorHandler','EH.INVOKE.HWF',true())
If tht works, then your configuration got loaded successfully.
Regards,
Rahul

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