I see this issue of UOM conversions has been brought up multiple times with no solution. Ref: https://github.com/frappe/erpnext/issues/3729 and
We sell products mainly in cases but sometimes need to sell individual bottles. Being able to have a UOM conversion where 12 bottles = 1 case would be awesome.
How much would this cost to get developed ASAP? Would anyone be interested in pitching in?