You have to specify a trigger of some sort. IOW when do you want to check
if the user has made an entry in that cell? When he tries to save the file?
When he tries to print? When he accesses some other cell? When he enters
data into some other cell? HTH Otto
"sugarbrit17" wrote in message
...
I am trying to create a spreadsheet where I require the user to enter data
into a certain cell. If they do not enter data in this cell I would like
a
warning to pop up to remind them