Pre-BPMN Designer receive steps that use Simple Service (For Synchronous Receive/Send) messaging protocol steps migrate to receive tasks.

As noted in About Send Tasks, send and receive tasks replace the request and reply model in legacy Designer processes.

The receive task works with a partner activity, the send task. A send task delivers a message to a targeted receive task using the Simple Service protocol. This is the same protocol used in legacy Designer request and reply steps.

Receive tasks support the Subscription (For Publishable Documents) (default), JMS (for JMS Triggered Processes), and Simple Service (For Synchronous Receive/Send) messaging protocols.

Legacy Designer receive steps that cannot start a process instance and do not have incoming sequence flows migrate to receive tasks.

Legacy Designer receive steps that cannot start a process instance and do have incoming sequence flows migrate to message intermediate events.