Introduction to Generation of MX Messages

ISO 20022 MX is a new message type expressed in XML syntax, which is more flexible and easier to implement than the previous generation of message types (MT). These message types are developed in accordance with the ISO 20022 standard.

The current syntax format is xxxx.nnn.aaa.bb, where:

  • xxxx is an alphabetic code in four positions (fixed length) identifying the business process.
  • nnn is an alphanumeric code in three positions (fixed length) identifying the message functionality.
  • aaa is a numeric code in three positions (fixed length) identifying a particular flavour (variant) of message functionality.
  • bb is a numeric code in two positions (fixed length) identifying the version.
EXAMPLE: TREA.001.001.02, where:
  • TREA refers to Treasury.
  • 001 refers to NDF opening (notification).
  • 001 refers to the variant.
  • 02 refers to the version message format, in this case, version 2 of NDF opening type.

SWIFT Standards for MX Messages

MX Identifier Description
acmt.xxx.xxx.xx Account Management
admi.xxx.xxx.xx Administration
camt.xxx.xxx.xx Cash Management
defp.xxx.xxx.xx Derivatives
pacs.xxx.xxx.xx Payments Clearing and Settlement
pain.xxx.xxx.xx Payments Initiation
reda.xxx.xxx.xx Reference Data
seev.xxx.xxx.xx Securities Events
semt.xxx.xxx.xx Securities Management
sese.xxx.xxx.xx Securities Settlement
setr.xxx.xxx.xx Securities Trade
trea.xxx.xxx.xx Treasury
tsmt.xxx.xxx.xx Trade Services Management
 

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