The number of item units to which the price applies.
cbc urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-21| Use | Name | Description | 
|---|---|---|
| O | @unitCode | 
         
            Item price base quantity unit of measure code 
            Example value:   | 
| Identifier/Error message | Flag | 
|---|---|
| PEPPOL-EN16931-R121 Base quantity MUST be a positive number above zero.  | 
            fatal | 
| BR-CL-23 Unit code MUST be coded according to the UN/ECE Recommendation 20 with Rec 21 extension  | 
            fatal |