Hey *smiles* Hope this helps...
http://office.microsoft.com/en-us/as...289521033.aspx Good luck!

"Ricki Miles" wrote:

I am working in Excel 2003. I have two columns of numbers (ID numbers for
employees of 6 digits each). If a number appears in column A (there are no
duplicates of this number in column A), the number must NOT appear in column
B. Is there any way, besides VBA, to check if a number appearing in column
A is also listed in Column B?

Thanks,

Ricki