Verity55, have a look here,
http://www.mcgimpsey.com/excel/udfs/sequentialnums.html

--
Paul B
Always backup your data before trying something new
Please post any response to the newsgroups so others can benefit from it
Feedback on answers is always appreciated!
Using Excel 2002 & 2003

"Verity55" wrote in message
...
I would like to be able to input information and for the database to
generate
a unique 'order number' to make sure the system remains intact - less
opportunity for human error!