Unfortunately, end-users cannot change the frequency of goal check-ins if they are not Teamflect administrators.
However, if end-users think that notifications come too often, they can turn off these goal check-in notifications.
To turn off the goal check-in notifications, first click on the "User Settings" button in the left-side menu of Teamflect.
Then find the “Goals” section and click the little triangle on the left side. Now you can see the “Goal check-in notifications” button at the bottom. If you turn this button off, you will not receive goal-check-in notifications.