cac urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2"| Card | Name | Description | 
|---|---|---|
| 1..1 | cbc:ID | 
             
                Invoice line object identifier 
                Example value:   | 
    
| 1..1 | cbc:DocumentTypeCode | 
             
                Document type code 
                Default value:   | 
    
| Identifier/Error message | Flag | 
|---|---|
| PEPPOL-EN16931-R100 Only one invoiced object is allowed pr line  | 
            fatal | 
| PEPPOL-EN16931-R101 Element Document reference can only be used for Invoice line object  | 
            fatal |