I'm using openerp 6.1 and I have mini-stores (anyway), I buy chemicals by packages of 24 bottles. at information product, I put this parameters
Default Unit of Mesure: PCE (Unidad) Purchase Unit of Mesure: Box ( I created)
Second UoM Unit of Sale: PCE UoM --> UoS: 24
I'm thinking that is the best configuration I purchase box and sell by piece but is not woking the invoice is wrong is telling that i'm selling the whole box. Please any help will be apreciated.