if, and, or formula help please

  • Thread starter Thread starter Tina
  • Start date Start date
T

Tina

I hope someone can help....

I am trying to get statistics on whether date deadlines have been met. The
three columns I am working on are :-

the required by date (K5) (automatically calculated from elsewhere on the
sheet),
the actual date (L5) the task was completed,
A yes/no column (M5).

I have used this formula =IF(L5>=K5,"N","Y")

However, for some bizarre reason it is still giving me a "N" if the require
by date and the actual date are the same.

Also, when a task has not yet been completed, the "actual date" is blank,
but the yes/no column still shows a yes. I cant figure out how to use the if
"" stuff to keep it blank unless both required by and actual dates are filled
in.

Any help would be really appreciated.
 
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