Ok, if you simply want to know if the values are present in both data sets:

=IF(COUNTIF(Sheet2!A$2:A$50000,A1),"Found","Not Found")

However, based on your posted lookup formula maybe this is what you want:

=VLOOKUP(A1,Sheet2!A$2:B$50000,2,0)


--
Biff
Microsoft Excel MVP


"SMH" wrote in message
...
There are two worksheets, same workbook, with one unique field on both
sheets. Since the order of the data isn't consistant, I would like to
write
a formula to find out if the unique # is found.

For example:
Data set 1
A1=abc
A100=def

Data set 2
A2=def
A6=abc

I want the formula to find the value of A1 (abc) in the second data set,
in
this example in data set 2, A6.

The formula I am trying to use is =VLOOKUP(A2,Sheet2!B2:B50000,2,FALSE)


"T. Valko" wrote:

I've tried vlookup, but I'm not getting the results I was looking for.

How are we supposed to know what result you're looking for if you don't
tell
us!

Need more detail.

For example:

I want to find the value in A1 that is somewhere in the range L1:L1000
and
when found return the corresponding value from the range M1:M1000. The
data
to be returned is _____. (text, numeric, could be either)

--
Biff
Microsoft Excel MVP


"SMH" wrote in message
...
There are two sets of data with one field matching in both sets. I
want
to
be able to put a formula into a cell and find the matching field,
whether
it
is in cell 10 or cell 1000. I've tried vlookup, but I'm not getting
the
results I was looking for. Any other suggestions.