The administrative interfaces to start and stop the time manager are only valid if the time manager process is started as part of instance startup by specifying this parameter. A single message can be consumed by multiple consumers. Navigation Users have several options to select a message from a queue. They can select the first message or once they have selected a message and established a position, they can retrieve the next message based on the current position. The selection is influenced by the ordering or can be limited by specifying a correlation identifier.
Users can also retrieve a specific message using the message identifier.
A sort order specifies which properties are used to order all message in a queue, a priority which can be assigned to each message, and a sequence deviation which allows you to position a message in relation to other messages. If several consumers act on the same queue, a consumer will get the first message that is available for immediate consumption. A message that is in the process of being consumed by another consumer will be skipped. If a message is browsed it remains available for further processing. Depending on the queue properties a removed message may be retained in the queue table.