To receive messages via the Process Dashboard, you need to perform the following steps:

1. Drag the Asynchronous Data Object into the drawing area.
2. Select the appropriate connector and the connector call for receiving the message.
3. You can continue with or without script.

Continue with script:

var lv_msg = data.data.msg;

data.data.msg must eventually be adapted to the output parameter specified in the connector call. lv_msg is the received message (type String, can be e.g. a JSON string, then parse to get object:

JSON.parse(data.data.msg)

It returns the object:

{propertyOne: 'abc', propertyTwo: 5}

Continue without script:

Use the output mapping to map received messages, e. g. to a widget or to save it in a variable.