You could also use Data Validation in the Projects cells with a type of
Custom and a formula of say =B10<"" (for row 10). Make sure you uncheck the
Ignore Blanks box.

--
HTH

Bob Phillips

(remove nothere from email address if mailing direct)

"Elkar" wrote in message
...
You could use an IF Statement in your final sum. Something like:

=IF(B10="","Please complete Column B",SUM(C1:C10))

Change cell references and messages to suit your needs.

HTH,
Elkar


"smistretta" wrote:

Our NPO is creating a reimbursement chart in Excel. We're trying to make
it
so that if employees do not fill in one particular column entitled
"Projects," they will get an error or will be unable to have a final sum
filled in.

Is there any way I can make this particular column required so that if
it is
not filled in, the chart will not complete properly?

Thank you in advance for any advice or help!