SB-AUTO-20..1cac:OrderReferenceurn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2| Card. | Term | Name | 
|---|---|---|
| 1..1 | cbc:ID | 
        Purchase order reference
        
             An identifier of a referenced purchase order, issued by the Buyer.  | 
| 0..1 | cbc:SalesOrderID | 
        Sales order reference
        
             An identifier of a referenced sales order issued by the Seller.  |