You can use the len function to return the # of characters in a cell.
i.e. =if(len(a1)<>6,"You entered the wrong # of characters","You
entered the right # of characters") ----does the following if a1 does
not equal 6, says you entered the wrong # otherwise says you entered
the right number
depending on your needs you can also use data validation (go to Data->
Validation) accomplish this.
> Sorry to post simple question in this forum but I need to use a function key
> to check if the correct number of digits are in a cell. I presume it would
> work such as 6 digits entered True, 4 or 7 False. I have tried a number of
> books but am struggling a little. Help very much appreciated.
>
> Roger