| ISO20022

MT538: (39) Field 20C: Reference

FORMAT

Option C

:4!c//16x

(Qualifier)(Reference)

PRESENCE

Mandatory in optional subsequence B2a1

QUALIFIER

(Error code(s): T89)

Order	M/O	Qualifier	R/N	CR	Options	Qualifier Description
1	M	CMIT	N		C	Counterparty Market Infrastructure Transaction Identification
	or	PREV	N		C	Previous Message Reference
	or	RELA	N		C	Related Message Reference
	or	POOL	N		C	Pool Reference
	or	MITI	N		C	Market Infrastructure Transaction Identification
	or	PCTI	N		C	Processor Transaction Identification

DEFINITION

This qualified generic field specifies:

CMIT	Counterparty Market Infrastructure Transaction Identification	Identification of a counterparty transaction assigned by a market infrastructure other than a central securities depository, for example, Target2-Securities.
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.
RELA	Related Message Reference	Message reference of the linked message which was previously received.

NETWORK VALIDATED RULES

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