Kari Mattsson wrote:
overlay unique unique_base "ou=data,dc=SUFFIX" unique_attributes employeeNumber #unique_ignore objectClass ou o dc
...and...
man slapo-unique
The last line unique_ignore objectClass ou o dc is not mandatory, but I've seen a line along those lines in many examples on the net. Leave it out if you don't understand its meaning...
Do *you* understand its meaning? Did you notice that your "unique_ignore" line is only a comment, and serves no purpose at all?
As the manpage states, you generally only need one of "unique_attributes" or "unique_ignore". In this case, just leave out the unique_ignore.