When the MATCH function doesn't, that is it mis-matches, it returns #N/A.
ISNA is a way of checking whether it would.

--
HTH

Bob

(there's no email, no snail mail, but somewhere should be gmail in my addy)

"Leonhardtk" wrote in message
...
Perfect! Works like a champ. I had never heard of ISNA...clever!

KSL.

"Bob Phillips" wrote:

=IF(ISNA(MATCH(SheetB!A1,SheetA!$A:$A,0)),"No","Ye s")

--
HTH

Bob

(there's no email, no snail mail, but somewhere should be gmail in my
addy)

"Leonhardtk" wrote in message
...
Based on many posts, it would appear that VLOOKUP is the answer to my
delima,
but I can't quite figure it out.

What I have is two worksheets. In SheetA, I have about 75 (A1:A75)
rows
of
data, each row is Unique. In worksheet B, I have about 400 rows
(A1:A400),
which is the same type of data, but not unique (I may have up to 20
duplicate
entrys, as other columns in SheetB is unique).

What I'm trying to do is, in Sheet B, I want to look at each row in
Column
B, and verify that value exists in SheetA columns A1:A75. If yes, then
in
SHeetB, P1:P400 I want either, Yes/No or True False.

Example:

SheetA SheetB
1-12345 1-12345 True
1-12346 2-12345 False
1-12347 1-12346 True
1-23456 1-23457 False

Thanks,
KSL