[Koha] same barcode number

[Yohannes Mulugeta]

Hello,

We (Addis Ababa University Libraries) have insatalled Koha 2.2.0RC1 on
solaries OS. Now we are trying to add items to the biblio but it accepts
the same barcode number for different items. Can any body help us?

Cheers,

Yohannes Mulugeta
Addis Ababa University Libraries