When logged into uBuy Sourcing Director, click your name in the top right and select View My Profile. Then from the left hand navigation pane, select Notification Preferences. Drilling into the sub categories as desired, select"Edit Section on the right and edit as needed. Select Save Changes when finished.
Please note, at present some of the notifications will not be limited only to events you are connected to. You may receive notifications for all events. Click on the question mark symbol next to the notification name for a further description of the notification.