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ISO 20022 external code set

ExternalUnderlyingTradeTransactionType1Code: Underlying Trade Transaction Type Codes

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Specifies the external commercial reference type code in the format of a character string with a maximum length of 4 characters.

Definition from the ISO 20022 External Code Sets, 2Q2026 (published 28 Aug 2026).

7 codes in use. External code sets are published outside the message schemas and updated every quarter, so a new code can appear without a new message version.

Codes

  • CONTContractUnderlying transaction is a contract.
  • DELVDelivery OrderUnderlying transaction is a delivery order.
  • PROFProforma InvoiceUnderlying transaction is a proforma invoice.
  • PROJProjectUnderlying transaction is a project.
  • PUORPurchase OrderUnderlying transaction is a purchase order.
  • QUOTQuotationUnderlying transaction is a quotation.
  • TENDTenderUnderlying transaction is a tender.

Messages that use ExternalUnderlyingTradeTransactionType1Code

MessageElement path
tsin.005UdrtkgApplDtls/UndrlygTx/Tp/Cd
tsrv.001UdrtkgIssncDtls/UndrlygTx/Tp/Cd, UdrtkgIssncDtls/ReqdLclUdrtkg/UndrlygTx/Tp/Cd
tsrv.002UdrtkgIssncAdvcDtls/UdrtkgIssncMsg/UdrtkgDtls/UndrlygTx/Tp/Cd, UdrtkgIssncAdvcDtls/UdrtkgIssncMsg/UdrtkgDtls/ReqdLclUdrtkg/UndrlygTx/Tp/Cd
tsrv.003UdrtkgIssncNtfctnDtls/UdrtkgIssncMsg/UdrtkgDtls/UndrlygTx/Tp/Cd, UdrtkgIssncNtfctnDtls/UdrtkgIssncMsg/UdrtkgDtls/ReqdLclUdrtkg/UndrlygTx/Tp/Cd

All ISO 20022 code sets · ISO 20022 messages

The ISO 20022 code set names, code values, names and definitions on this page are reproduced from material published at iso20022.org under the ISO 20022 Intellectual Property Rights policy. This is not the official source: the up-to-date ISO 20022 standards and repository material are published only at iso20022.org. Explanations in our own words are by ZagTrader. ZagTrader is not affiliated with or endorsed by ISO or Swift.