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Access variables from CallActivity outside Error Boundary

Question asked by punita@techm on Aug 5, 2015
Latest reply on Aug 19, 2015 by trademak
I have a process A which calls process B using CallActivity.
Process B is calling a SOAP service and if the SOAP service responds with error, process B ends with ErrorEndEvent.
I need to access the errorCode that was sent from the SOAP service in process A. However, I am not able to access any variables from process B in process A (even not with the <activiti:out> tag).

How can I access variables from the call activity process to the parent process, if the call activity process is in the error boundary?