Units of measure, purchase case, sell singles and case qty

SOLVED

Units of measure. Should be simple but im struggling. i purchase oil in cases of 12, sell them individually, but also occasionally sell them in case qty which would have a better selling price. so when order a case using part number caseoil, i need it to put 12 units in stock and when i sell 1 quart i would like it to be removed from inventory and when i sell a case qty i would like to have 12 removed from inventory. should be simple, right?

One of the questions i have with this is what pricing should i have in IM? if i buy the case at 50.00, sell each qt at 8.00 and sell a case at 100.00? do i need to set up the unit of measure conversion to handle one or two items like this? I guess im just a little confused as to how sage handles these transactions. I appreciate any help anyone can give.