1. NWA > Configuration > Processes and Tasks > Process Repository
2. Select the Development Component > Process
3. Click the Process link New screen open Manage Process
4. For more details, check log - developer trace with Process Instance ID.
5. To check BPM queue summary, go to NWA > Troubleshooting > Processes and Tasks > BPM Actions
Error : JAXP00010001: The parser has encountered more than "64000" entity expansions in this document; this is the limit imposed by the JDK.
Resolution : Limit the number of message to BPM.
How to Increase the trace level
NWA > Log Configuration > Trace Locations > Select 'com.sap.glx' and/or 'com.sap.bpem'.
Set the trace level to 'Debug' > Apply to sub-nodes
How to check if BPM is up and running
ProcessDefinitionManager processDefinitionManager = BPMFactory.getProcessDefinitionManager();
ProcessDefinition processDefinition = processDefinitionManager.getActiveProcessDefinition("example.com", "exe~udi~flow", "udiprocess");
ProcessInstanceManager processInstanceManager = BPMFactory.getProcessInstanceManager();
Collection processInstanceCollection = processInstanceManager.getRunningProcessInstances(processDefinition.getId());
Reference: