[Koha] Assistance for Koha

Hi, I am using koha 3.6,, I need help for configuration,,,For placing/receving order we need to add item record. How to add item record,(we need to add record for each item) when am placing order 'all selection fields under 'item' are empty,how to fill these filds for selection. please respond,, -- * Best Regards, Shahas Rahman Abudhabi 00971 503211648 *