Units of Measure (UOM)

What is a Unit of Measure? *

A unit of measure often referred to as UOM is the way in which the item quantity is measured. The standard unit of measure for any material item should be set to the measure of consumption. In most cases this measurement is each. For example, a pair a drawer slides actually consist of a right and left slide however the pair would be thought of as “each” which refers to each pair of slides, since you do not use just one slide. A craftsman will use a box of staples rather than individual staples. Therefore the description would include the term box – that is one each box of staples.

Units of measure are also broken down into kinds or types. These are:

  • Count
  • Length
  • Area
  • Volume
  • Weight
  • Time
  • Money
  • Liquid

Within each type of UOM there are additional expressions that can be converted within the type. For example in the type “count” you may have each, dozen, pair, etc.  A conversion multiplier will change from one UOM to another within the same type.  Notice that you cannot convert between types. For example a gallon does not convert to a pair or a dozen.

When purchasing material you may need to purchase using a different UOM. For example a pair of drawer slides (each) may be purchased by the dozen.  Therefore if the purchase requirement is 5 each pairs of slides the conversion would round up to 1 dozen pairs of slides.  When the one dozen pairs of slides are received, the inventory level would be increased by 12.


How do I create a new Unit of Measure? *

To create a new unit of measure click on the New button and choose the UOM type from the drop-down selector. Then enter a long name and a short name or abbreviation for the new unit of measure. Click OK


The new entry is added to the list of UOMs for the selected type. To create conversion relationships select the UOM to convert to from the drop-down selector.


Then type in the Multiply By value and click Save.


How do I delete a Unit of Measure? *

You may only delete UOM values that are not assigned to an item, or a product. To delete a UOM click on the UOM in the list and then click on the Delete button.


When asked to confirm choose Yes.