| ISO20022

MT566: (9) Field 20C: Reference

FORMAT

Option C

:4!c//16x

(Qualifier)(Reference)

PRESENCE

Mandatory in optional subsequence A1

QUALIFIER

(Error code(s): T89)

Order	M/O	Qualifier	R/N	CR	Options	Qualifier Description
1	M	CORP	N		C	Corporate Action Reference
	or	PREV	N	C2	C	Previous Message Reference
	or	RELA	N		C	Related Message Reference
	or	CACN	N		C	Case Number
	or	COAF	N		C	Official Corporate Action Event Reference
	or	MITI	N		C	Market Infrastructure Transaction Identification

DEFINITION

This qualified generic field specifies:

CACN	Case Number	Reference assigned by a court to a class action.
COAF	Official Corporate Action Event Reference	Official and unique reference assigned by the official central body/entity within each market at the beginning of a corporate action event.
CORP	Corporate Action Reference	Reference assigned by the account servicer to unambiguously identify a corporate action event.
MITI	Market Infrastructure Transaction Identification	Identification of a transaction assigned by a market infrastructure other than a central securities depository, for example, Target2-Securities.
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 '//'.