Hello people.
In this moment i need to create a class schedule for the teachers of my classes. But I need a formula that gives me error when I choose a teacher for an hour where he is already in another class.
EXAMPLE: The info in the cells f5:f8 not be the same in the intervals f16:f19 and f27:30 so on and so on... (represents the same time and day).
Could you understand?
It's possible?
Thanks for all
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