Unit of measure default hierarchy

The unit of measure (UOM) for an item is determined based on a hierarchy that depends on the item type.

The unit of measure hierarchy that is shown is from the lowest level to the highest level of detail. The highest entry is at the bottom and overrides the next lowest entry in the list.

Inventory UOM Origination

  • Stock UOM
  • Transaction Default UOM from Item Master record
  • Transaction Default UOM from Item Location record
  • Entered. Validated by the buy UOM or the Transaction UOM in Item Master record

Processing rules:

  • If your inventory company setup requires you to specify a UOM, then you must select a UOM. The UOM is validated by the Transaction UOM or the Buy UOM of the Item Master record.
  • If you are not required to specify a UOM on your inventory company setup, then the Transaction Default UOM of the Item Location record is used. When your company is set up to use the Transaction Default UOM of the Item Location record, then Transaction Default UOM of the Item Location record is used.
  • If the Transaction Default UOM of the Item Location record is blank, then the Transaction Default UOM of the Item Master record is used. When your company is set up to use the Transaction Default UOM of the Item Master record, then Transaction Default UOM of the Item Master record is used.
  • If the Transaction Default UOM of the Item Master record is blank, the Stock UOM is used for the default value of the UOM.

Non-stock UOM Origination

  • Must be entered
  • If source UOM exists, then it must be used.
  • Buy UOM from Item Master record
  • Buy UOM from Vendor Item record
  • Entered. Validated by Buy UOM or Transaction UOM in Item Master record

Processing rules:

  • If your inventory company setup requires you to enter a UOM, you must select a UOM. The UOM is validated by the Transaction UOM or the Buy UOM of the Item Master record.
  • If the UOM is not entered and a vendor is entered, the vendor and a Buy UOM in the Vendor Item record is used. If found, the vendor and the Buy UOM is used for the default value of the UOM.
  • If no Vendor Item record is found, the Item Master record is used. If an Item Master record exists for the item, the Buy UOM is used.
  • If no Item Master record exists, a UOM must be entered.

Special and Services UOM Origination

Entered. Buy UOM is validated against the Item Group valid UOMs. The UOM for a special item is the manually assigned Buy UOM and must be valid in the Item Group.

Processing rules:

  • You must select a UOM for these item types. The UOM is validated against UOM in the item group for the company.