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ISO 15022
Data Field Dictionary

MT558: (4) Field 23G: Function of the Message

FORMAT

Option G 4!c[/4!c] (Function)(Subfunction)

PRESENCE

Mandatory (referenced in rule C1) in mandatory sequence A

DEFINITION

This field identifies the function of the message.

CODES

Function must contain one of the following codes:

ADVD

Advice

Message sent for an instruction by the counterparty that has not yet been matched.

CAST

Cancellation Request Status

Message reporting on a cancellation request status.

INST

Instruction Status

Message reporting on an instruction status.

REST

Replacement Status

Message reporting on a replacement status.

CODES

Subfunction, when present, must contain one of the following codes:

CODU

Copy Duplicate

Message is a copy to a party other than the account owner/account servicer, for information purposes and the message is a duplicate of a message previously sent.

COPY

Copy

Message is a copy to a party other than the account owner/account servicer, for information purposes.

DUPL

Duplicate

Message is for information/confirmation purposes. It is a duplicate of a message previously sent.