This field contains the unit of measure for which the infocode is valid. If the field is blank, the infocode is valid for any unit of measure. The unit of measure relates to the unit of measure of the transaction line triggering the infocode. You can use this field to assign infocodes or item modifiers to an item, based on the various item units of measure. A 9 inch pizza triggers a 9 inch extra toppings list (unit of measure of the toppings list is 9 inch), a 12 inch pizza triggers a 12 inch extra toppings list, and so on.