Defaults the standard unit of measure for the material as defined in HQ Materials. May be overridden, but must be a valid unit of measure for the material (i.e. set up on the Addl UMs tab in HQ Materials). Inventory will be updated in the standard unit of measure using the conversion factor specified for the non-standard unit of measure.
If you entered a miscellaneous material not set up in HQ, enter a valid unit of measure (from HQ Units of Measure) for the material.