Invoice type code A code specifying the functional type of the Invoice. About ID IBT-003Cardinality 1..1Section SharedName Invoice type codeSyntax binding ubl:Invoice / cbc:InvoiceTypeCodeRules IBR-004: An Invoice MUST have an Invoice type code (ibt-003) / A Credit note MUST have a Credit note Type code (ibt-003).IBR-CL-01: The document type code (ibt-003) MUST be coded by the self-billed invoice and self-billed credit note related code lists of UNTDID 1001.