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ISO 15022
Data Field Dictionary

MT509: (7) Field 20a: Reference

FORMAT

Option C :4!c//16x (Qualifier)(Reference)
Option U :4!c//52x (Qualifier)(UTI Reference)

PRESENCE

Mandatory in optional subsequence A1

QUALIFIER

(Error code(s): T89)

Order

M/O

Qualifier

R/N

CR

Options

Qualifier Description

1

M

RELA

N

 

C

Related Message Reference

 

or

PREV

N

 

C

Previous Message Reference

 

or

MAST

N

 

C

Master Reference

 

or

BASK

N

 

C

Basket Reference

 

or

INDX

N

 

C

Index Reference

 

or

LIST

N

 

C

List Reference

 

or

PROG

N

 

C

Program Reference

 

or

TRRF

N

 

C or U

Deal Reference

 

or

COMM

N

 

C

Common Reference

 

or

ISSU

N

 

C

Issuer Reference

 

or

BMRB

N

 

C

Block Matching Reference

 

or

ALMR

N

 

C

Allocation Matching Reference

DEFINITION

This qualified generic field specifies:

ALMR

Allocation Matching Reference

Reference of the linked message at the Detail/Allocation Level which identifies a centrally matched transaction.

BASK

Basket Reference

Reference identifying a basket trade.

BMRB

Block Matching Reference

Reference of the linked message at the Trade/Block Level which identifies a centrally matched transaction.

COMM

Common Reference

Unique reference agreed upon by the two trade counterparties to identify the trade.

INDX

Index Reference

Reference identifying an index trade.

ISSU

Issuer Reference

Reference that an issuer attributes to a fund (funds industry).

LIST

List Reference

List reference which identifies a list trade.

MAST

Master Reference

Unique and unambiguous identifier used to link a group of individual transactions together.

PREV

Previous Message Reference

Message reference of the linked message which was previously sent.

PROG

Program Reference

Program reference which identifies a program trade.

RELA

Related Message Reference

Message reference of the linked message which was previously received.

TRRF

Deal Reference

Reference assigned to the trade by the Investment Manager OR the Broker/Dealer. This reference will be used throughout the trade life cycle to access/update the trade details.

NETWORK VALIDATED RULES

Reference must not start or end with a slash '/' and must not contain two consecutive slashes '//'.

USAGE RULES

MAST, BASK, INDX, LIST, PROG, COMM and ISSU references must not appear more than once in the message.

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