This section describes the process flow when external messages are sent and received in the SAP System.
In scenario (b), the node subsequently confirms whether or not the document could be successfully sent (asynchronous status).
SAP users can trace the status of messages they have sent in their outbox. The current status and the transmission history (that is, the status history) are also available. The administrator can evaluate the status of all messages and, if necessary, apply error-handling measures.