How to enable debug logs for BPMN in WSO2 BPS Server

Add the below configurations to <BPS_HOME>/repository/conf/log4j.properties

log4j.logger.org.activiti=DEBUG
log4j.logger.org.activiti.engine.impl.db=INFO
log4j.logger.org.activiti.engine.impl.persistence=INFO
log4j.logger.org.activiti.engine.impl.cfg.standalone=INFO
log4j.logger.org.activiti.engine.impl.interceptor.LogInterceptor=INFO
log4j.logger.org.activiti.engine.impl.history.DefaultHistoryManager=INFO
log4j.logger.org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable=INFO