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To begin you have to install the add-on. In order to access the SLA PowerBox features click on the 
icon and choose add-ons from the list. The SLA PowerBox menu is located on the left-hand side of the screen.
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Note that the SLA Notification History tab has been added to the view issue screen.
It provides information about the Notification's status - verifies whether the message was successfully delivered and who received it. In addition, the SLA Agreement settings range was extended by the Notification Scheme and Service Manager options.