GroupingRoundRobinDistributionPolicy pins a consumer to a message group, so if a queue has multiple consumers, messages with a certain group id set will always be distributed to the same consumer. An ordering group, as far as i understood, was to do with the order of messages within a group. So you could send 2 sets of messages for 2 different groups and the messages would be delivered in order within their own group. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4193818#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...