If they count in cartons it seems to reason that they purchase ""whole"" cartons. So ""pricing"" is only for reference. If that's the case, then use the four category fields in IM to setup for CWT Price, CWT Cost, or MSHT Price, MSHT Cost and one for # of cwt/msht per carton. Since these are text fields you won't be limited by 4 decimal maximum of a UDF/std field. The category fields are then available in SO and PO forms and can be printed or used in a formula on the form. Once you take the CWT/MSHT out of the equation of UM, you can set the Standard, Purchase and Sales UM to carton.