Here's a formula that will help determine if it's hidden characters that are
messing things up. In a workbook where you ARE getting the #NA results, put
a formula like this in an available column on the sheet with the source data.
If column M on BB_Users sheet is available, put this in M1:
=IF(LEN(A1)<>LEN(TRIM(A1)),"Has Invisible Characters","")
That will tell you if any non-displayable characters are involved.
BUT!! If the formula you provided is truly like what you are using, it
should be IMPOSSIBLE for it not to return a result. You show
=VLOOKUP(BB_Users!$A1,BB_Users!$A$1:$L$2000,4,FALSE)
which says "look up the entry in BB_Users!$A1 in a table made up of from A1
to L2000 and return me the value in the 4th column, list does not have to be
in sequence"
Because the value you're looking up is part of the table itself, it should
be impossible not to find a match.
It might help if you could send me the workbook in question, along with
source data that does work, and source data that doesn't work and I'll look
at it and see what I can figure out here. Send email to (remove spaces)
Help From @ J Latham Site. com
with the files attached. Mention your user name here (Ed2) and if you can
include a link to your first post in this discussion, that will help me
refresh my memory when I get the email, or at least describe the problem and
tell me which set of data works, which doesn't.