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The user menu is accessible from nearly all pages within Course Site. It is typically located at the top-right of the screen in the header bar indicated by your full name and small profile picture. Click on either of those items to reveal the user menu.
Review/Edit Notification Preferences
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On the Preferences page, locate the User account section and select Notification Preferences.
Setting Notification Settings
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To turn on a notification, make sure the box corresponding to the method by which you want to receive the notification is checked. To turn off a notification, simply make sure the corresponding box is unchecked.