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ISO 15022
Data Field Dictionary

MT549: (21) Field 20a: Reference

FORMAT

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

PRESENCE

Mandatory in optional sequence C

QUALIFIER

(Error code(s): T89)

Order

M/O

Qualifier

R/N

CR

Options

Qualifier Description

1

M

PREV

R

 

C

Previous Message Reference

 

or

TRRF

R

 

C or U

Deal Reference

 

or

COMM

R

 

C

Common Reference

 

or

RELA

R

 

C

Related Message Reference

 

or

MAST

R

 

C

Master Reference

 

or

BASK

R

 

C

Basket Reference

 

or

INDX

R

 

C

Index Reference

 

or

LIST

R

 

C

List Reference

 

or

PROG

R

 

C

Program Reference

 

or

POOL

R

 

C

Pool Reference

 

or

CORP

R

 

C

Corporate Action Reference

 

or

MITI

R

 

C

Market Infrastructure Transaction Identification

 

or

PCTI

R

 

C

Processor Transaction Identification

DEFINITION

This qualified generic field specifies:

BASK

Basket Reference

Reference identifying a basket trade.

COMM

Common Reference

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

CORP

Corporate Action Reference

Reference assigned by the account servicer to unambiguously identify a corporate action event.

INDX

Index Reference

Reference identifying an index trade.

LIST

List Reference

Reference identifying a list trade.

MAST

Master Reference

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

MITI

Market Infrastructure Transaction Identification

Identification of a transaction assigned by a market infrastructure other than a central securities depository, for example, Target2-Securities.

PCTI

Processor Transaction Identification

Identification of the transaction assigned by the processor of the instruction other than the account owner the account servicer and the market infrastructure.

POOL

Pool Reference

Collective reference identifying a set of messages.

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 assigned by the client to the message to which this message is the reply.

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

The reference type used to identify the transaction must be in line with the reference types available for the message type requested by the MT549. For example, an MT549 must not request an MT567 using, as linked transaction reference, a COMM reference type that is not a transaction reference type available for Corporate Action messages.