You can configure a Workflow life cycle to route and process message items. When doing so, structure the life cycle so that each message item enters one and only one life cycle and is then processed by consecutive actions and rules, one at a time, until it leaves the life cycle or is transitioned. If the message item is transitioned or added to another life cycle, it should also be removed from its current life cycle to prevent parallel processing.
Setting a message item type on the Message Item Types property of a life cycle configured to process message items does not cause new message items of that message item type to be added to the life cycle automatically. For this type of life cycle, adding a message item type to a life cycle only enables that life cycle as an option when creating an XML Messaging operation in Web Services Publishing.
To create a life cycle to route message items: