With a Teamup account, you can see your notification subscriptions anytime.
You can Unsubscribe from a subscription or Change the notification settings via the buttons next to each subscription.
If you don't have any active notification subscriptions, the page will state that your account does not currently subscribe to any notifications.
To set up notifications, open a calendar in a browser. Click the blue Calendar menu (top right), then click Preferences > Change Notifications.