Priority messaging only applies to documents that are published to the IBM webMethods Broker and Universal Messaging. It does not apply to locally published documents.

All IBM webMethods messaging triggers that receive documents from Universal Messaging receive and process documents in priority fashion. Priority messaging cannot be disabled for IBM webMethods messaging triggers that receive documents from Universal Messaging. That is, Integration Server ignores the value of the Priority property if the IBM webMethods messaging trigger subscribes to one or more publishable document types associated with a Universal Messaging connection alias.

When you enable or disable priority messaging for IBM webMethods messaging trigger that receives documents from IBM webMethods Broker, Integration Server disconnects the trigger client on the IBM webMethods Broker and recreates the associated IBM webMethods messaging trigger client queue. Any documents that existed in the IBM webMethods messaging trigger client queue before you enabled or disabled priority messaging will be lost. For this reason, you may want to ensure the IBM webMethods messaging trigger queue on Integration Server is empty before enabling or disabling priority messaging.

Priority messaging may consume IBM webMethods Broker resources and can introduce latency into document processing by IBM webMethods messaging triggers. For more information about how priority messaging may impact performance, refer to the IBM webMethods Broker Java Client API Reference.