Hello, In AppenderAction, there is a line: String appenderName = ec.subst(attributes.getValue(NAME_ATTRIBUTE)); In LoggerAction, this is the equivalent: String loggerName = attributes.getValue(NAME_ATTRIBUTE); The LoggerAction doesn't substitute from context. My guess is that there is a good reason why properties are not substituted in logger names....? That's my question. Here's where this comes from: I thought it would be nifty to route some logs via a shared properties file (shared between the app and logback.xml config) like so: <property resource="logbackProps.properties" /> <logger name="${customLoggerName}> <------------this is what doesn't work because LoggerAction doesn't substitute properties <appender-ref ref="SOME_FILE_APPENDER" /> </logger> Then put a logger name in the logbackProps.properties file: customLoggerName=userAuthLogger Then in code (let's say a user authentication DAO) I could: private static Logger authenticationlogger = LoggerFactory.getLogger(ClassThatGetsProperties.getPropertyValueFor(ConstantsEnum.customLoggerName)); Thanks and Cheers! Eric C