Once you decide which messaging providers you will be using, create messaging connection aliases. A messaging connection alias defines the configuration needed to establish a connection between Integration Server and a webMethods messaging provider. You can use Universal Messaging and/or Broker as the messaging provider. For each messaging provider that you want to use, you need to create at least one messaging connection alias. For more information about configuring Integration Server for webMethods messaging, see webMethods Integration Server Administrator’s Guide and Configuring the Integration Server to Publish and Subscribe to Documents.