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ISO 15022
Data Field Dictionary

MT517: (3) Field 23G: Function of the Message

FORMAT

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

PRESENCE

Mandatory (referenced in rules C1 and C2) in mandatory sequence A

DEFINITION

This field identifies the function of the message.

CODES

Function must contain the following code:

CANC

Cancellation Request

Message requesting the cancellation of a previously sent message.

NEWM

New

New message.

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.

USAGE RULES

The function CANC must only be used by the Depository Trust Company (USA) to cancel same day affirmations. This is for audit purposes only and does not cancel the trade itself.

To cancel a previously sent message, Function is CANC. The reference in the linkages sequence must contain the Sender's reference of the message to be cancelled. A copy of at least the mandatory fields of the message to be cancelled must be present; optional fields need not be present for SWIFT validation.