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The Message Broker must be of version 3.11 or higher for this functionality to work correctly.
/PACG/ECM_OBJERROR does not require any particular configuration. It can only be enabled or disabled separately for each inbound object in the /PACG/ECM_CLSASSIGIN. After the OBJERROR is sent back to FSM the object which initialized the process becomes unblocked but there is no information displayed to the end user that processing in SAP backend failed which means that it is undistinguishable if the process was successful or not what in the end may lead to serious inconsistencies between FSM and SAP.
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