Message flows

A Message Flow is used to show the flow of messages between two participants that are prepared to send and receive them. In BPMN, two separate Pools in the model will represent the two participants (for example, business entities or business roles). The notation of a message flow is .

Message Flow must connect two Pools, either to the Pools themselves or to Flow Objects within the Pools. They cannot connect two objects within the same Pool.

Anchor points can be moved using click and drag; the message flow does not have to be deleted and redrawn.