ISO 20022 · External code set

Relative to codes

Specifies the external relative to code in the format of a character string with a maximum length of 4 characters. The list of valid codes is an external code list published separately. External code sets can be downloaded from www.iso20022.org.

3 registered codesSource release: August 2026 (v3)
Registered codes in ExternalRelativeTo1Code. Select a code for its full definition and source details.
CodePublished name and definition
GOODValue Of Goods

Percentage rate expressed relative to the value of goods.

PAYMPayment Amount

Percentage rate expressed relative to the payment amount.

UNDGUndertaking Amount

Percentage rate expressed relative to the undertaking amount.

Message references 4

Versions listed in the source workbook, including older versions. This list does not establish which messages a bank, network or provider supports.

  • tsrv.003.001.01Undertaking Issuance Notification V01
  • tsrv.002.001.01Undertaking Issuance Advice V01
  • tsin.005.001.01Undertaking Application V01
  • tsrv.001.001.01Undertaking Issuance V01

Source: UsageInMsgs sheet in 2Q2026_externalcodesets_v3.xlsx.