cbc:ID
BEAst: The reference number of the added information. Can be the Project Number (T6004), Customers' Reference (T6005), Seller's Order Number (T6099), Final Customer's Order Number (T6221), Drawing Number (T6222), Delivery Part (T6340), Freight Payer's Customer Number (T6463) or Document Name (T6484) depending on DocumentType. Peppol: An identifier for the referenced document.
- Namespace
 cbcurn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2- Data type
 - udt:IdentifierType
 - Example value
 7648779- Business terms
 - tir16-p049