Each line in a credit note must contain the unit of measure that applies to the credited quantity. Unit of Measure. Code based on UN/ECE rec 20 , - versjon 6e 2009.

Usage
Mandatory
Example value
NAR
Rules
Identifier/Error message Flag
OP-T14-R006
Unit code MUST be coded according to the UN/ECE Recommendation 20
fatal
EUGEN-T14-R030
A unit code attribute MUST have a unit code list identifier attribute 'UNECERec20'.
fatal
BII2-T14-R019
Each credit note line MUST have a quantity unit of measure
fatal