Thank you,
NC
Try testing the function like this - =Workdays(#11/3/2009#,#11/5/2009#)
Most of the time Access shows "#Name?" when it can not find a field defined
in the SQL statement. Check the field names for typos.
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Build a little, test a little.
More generaly:
http://www.mvps.org/access/datetime/index.html
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Build a little, test a little.
Still workin' on it tho'...
Cheers,
NC