Client requests can be queued, and one or more Queue Managers and queues can be set up to process transactions according to their configuration criteria. When queuing is set up on the server, Arbortext PE Request Manager creates a transaction ID for a request and then passes it to each Queue Manager. When a Queue Manager accepts the transaction, it then offers the transaction to each queue in turn. The queue that accepts the transaction makes the request available to be processed during its active interval, and then it stores the result in the active transaction directory according to its configuration. You can configure how long transactions are kept in the active transaction directory. You can also configure which transactions will be archived, as well as how long they will be kept.