01828
Message Waiting Priority
2020-01-06
Definition: If present, indicates that the Sending Application has messages waiting on a queue for the Receiving Application. These messages would then need to be retrieved via a query. This facilitates receiving applications that cannot receive unsolicited messages (i.e., polling). The code specified identifies how important the most important waiting message is (and can govern how soon the receiving application is required to poll for the message).
For example, if there are 3 low priority messages, 1 medium priority message and 1 high priority message, the message waiting priority would be 'high', because that is the highest priority of any message waiting.