J
jlojones821
At one point in time I knew how to do this...
What formula do I use so excel won't allow me to put the same number in a
column twice. I want to make sure I don't enter an invoice number more than
once.
What formula do I use so excel won't allow me to put the same number in a
column twice. I want to make sure I don't enter an invoice number more than
once.