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The schedule is a plan. The room is the fact.
A beautiful weekly grid loses to one sick call. Coverage is who is standing there, qualified for that age, while the children are present.
Honeyfold assigns staff to rooms and compares that assignment to the ratio you entered and the children checked in. If the infant room is short, it says so. It does not move a preschool teacher into the infant room unless that person is allowed to be there. Your license decides that, not the software.
Open and close are the fragile ends of the day. Build the schedule for those thirty minutes on purpose. A closer who is alone with a mixed group at 5:40 is a ratio question, not a staffing preference.
Check the arithmetic on the calculator.