The blue remarks next to the weekly overview in the schedule navigation as well as on the right side of a shift indicate that there are running applications.
Whenever the shift has been klicked once, the blue dot will disappear (maybe only after reloading the page).
Also staff users will see the blue dots if
- the user has been assigned by a scheduler,
- if an application got accepted or
- a new shift has been created, where the user can apply/assign to.