Maintaining Tab Page Activations
On this tab page you activate the event queue and define the linkages for which the event queue is to temporarily store events and receivers.
This tab page is maintained within administration of the event queue.
Settings
Switch on event queue
If the event queue is switched on, all the events created are written into the event queue before delivery, provided delivery via the event queue was specified for them. Delivery via the event queue must be defined separately for each linkage (see below).
If the event queue is switched off, no events are written into the event queue.
Reading from the event queue does not depend on this setting. Therefore, events are delivered from the event queue even if it is switched off. The background job must be active for this.
Delete event after delivery
The event are stored persistently in the event queue.
You can set whether events are to be deleted after delivery. If the delivered events are not deleted, the indicator delivered is set for them. If delivered events are not deleted, you can still view them even after the delivery.
You should delete delivered events in a production system to accelerate the processing of undelivered events.
Event linkages
The event queue can only be used for events if the linkages are appropriately classified.
For this you must set the Enable Event Queue flag for either Maintaining Type Linkages or
Active configuration
The information in this status frame answers the following questions:
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Is the event queue switched on?
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Is the background job active?
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Are events deleted automatically after delivery?
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How many event linkages are using the event queue?
You can access administration of the event queue by choosing
Tools 
Business Workflow Development Administration Event Manager Event Queue 
.