The Correlations tab displays in invoke, receive, and reply activities, the onMessage branch of pick activities, and the OnMessage branch of scope activities. Correlation sets address complex interactions between a process and its partners by providing a method for explicitly specifying correlated groups of operations within a service instance. A set of correlation tokens is defined as a set of properties shared by all messages in the correlated group.

For more information, see the online help for this tab and Introduction to Correlation Sets in an Asynchronous Service.