Unit Codes

Line items require a unit code from UN/ECE Recommendation 20.

Common Unit Codes

Code	Name	Description
HUR	Hour	Time-based services
DAY	Day	Daily rates
MON	Month	Monthly services
C62	Unit/Piece	Generic item count
KGM	Kilogram	Weight
MTR	Meter	Length
LTR	Litre	Volume
MTK	Square meter	Area
MTQ	Cubic meter	Volume
EA	Each	Individual items

Service Units

Code	Name	Example Use
HUR	Hour	Consulting, development
DAY	Day	Project work
MON	Month	Subscriptions, retainers
MIN	Minute	Phone support
SEC	Second	API calls
ANN	Year	Annual licenses

Physical Units

Length

Code	Name
MTR	Meter
CMT	Centimeter
MMT	Millimeter
KMT	Kilometer
INH	Inch
FOT	Foot

Weight

Code	Name
KGM	Kilogram
GRM	Gram
TNE	Tonne
LBR	Pound
ONZ	Ounce

Volume

Code	Name
LTR	Litre
MLT	Millilitre
MTQ	Cubic meter
GLL	Gallon

Area

Code	Name
MTK	Square meter
CMK	Square centimeter
HAR	Hectare

Quantity Units

Code	Name	Use Case
C62	Unit	Generic items
EA	Each	Individual items
SET	Set	Grouped items
PR	Pair	Pairs
DZN	Dozen	12 items

Data Units

Code	Name
B72	Gigabyte
AD	Byte
E34	Gigabit

Example Usage

{
  "items": [
    {
      "description": "Consulting Services",
      "quantity": 8,
      "unit": "HUR",
      "unitPrice": 150.00,
      "vatRate": 19.0
    },
    {
      "description": "USB Cable",
      "quantity": 5,
      "unit": "C62",
      "unitPrice": 9.99,
      "vatRate": 19.0
    },
    {
      "description": "Monthly Hosting",
      "quantity": 1,
      "unit": "MON",
      "unitPrice": 29.00,
      "vatRate": 19.0
    }
  ]
}

Notes

• Unit codes are case-sensitive
• Using an invalid unit code will cause validation to fail
• For the complete list, see UN/ECE Rec 20