SB-AUTO-120..1cac:ProjectReferenceurn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2| Identifier | Message | 
|---|---|
| IBR-090 | [ibr-090]-Only one project reference (ibt-011) is allowed on document level. | 
| IBR-SR-39 | [ibr-sr-39]-Project reference (ibt-011) MUST occur maximum once. | 
| Card. | Term | Name | 
|---|---|---|
| 1..1 | cbc:ID | 
        Project reference
        
             The identification of the project the invoice refers to  |