What causes shift errors?

Shifts errors occur when:

1. there are overlapping shifts for the same employee
2. an employee is rostered in two locations at the same time
3. an employee who is unavailable
4. an employee who is on leave is rostered
5. shift related Roster Settings are breached, i.e.
   • a shift is shorter than minimum shift length
   • there is less than the minimum time between shifts 
   • there are more than the maximum number of shifts per day
   • there are more than the maximum shifts per week

When there are shift errors, a badge appears on 'Roster' in the dock.