ISO 20022 · External code set

Securities purpose codes

Specifies the underlying reason code for an SSI instruction, in the format of 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. External code sets can be downloaded from www.iso20022.org.

3 registered codesSource release: August 2026 (v3)
Registered codes in ExternalSecuritiesPurpose1Code. Select a code for its full definition and source details.
CodePublished name and definition
COLLCollateral Management

Relates to collateral management.

SECLSecurities Lending

Relates to securities lending.

STMTSettlements

Relates to settlements.

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.

  • reda.058.001.01Standing Settlement Instruction Status Advice V01
  • reda.056.001.01Standing Settlement Instruction V01
  • reda.057.001.01Standing Settlement Instruction Deletion V01
  • reda.059.001.01Standing Settlement Instruction Cancellation V01

Source: UsageInMsgs sheet in 2Q2026_externalcodesets_v3.xlsx.