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The application must be activated in your domain via the Applications Gallery, otherwise you will not see the application in the navigation pane. See Applications gallery to know more.
Your role needs to have this application assigned, otherwise you will not see the application in the navigation pane. See Assign resources to a role to know more.
What permissions do I need?
What you will see in this view is permissions dependent. You will need alert configurationpermissions to have access to this app. Users with View permissions will be able to access in view mode, whereas users with Manage permissions will have full access.
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To access the Administration → Alert Configuration area you need to have a role with the Manage version of the Alert configuration permission. If you only have the View version of this permission, you will not be able to perform any task here (more info about permissions here).
Additionally, you need to have alerts assigned (see Assign resources to a role). You will only see alert definitions for those alerts assigned and allowing only the interaction level specified for them. In other words, the permissions grants theoretical access to alerts while assigning a specific alert grants the actual access.
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Accessing the application
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