MT 538 Field Specifications

11. 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	PREV	N	C3	C	Previous Message Reference
	or	RELA	N		C	Related Message Reference
	or	POOL	N		C	Pool Reference

DEFINITION

This qualified generic field specifies:

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 '//' (Error code(s): T26).