| ISO20022

MT530 Scope

This message is sent by an account owner to an account servicer (account servicing institution). The account owner will generally be a financial institution that has an account with a local Central Securities Depository (CSD) or with an International Central Securities Depository (ICSD).

It is used to request the modification of a processing indicator or other non-matching information. In markets where this applies (for example, securities market infrastructures with no pre-settlement matching process), it is used by a party to approve, cancel or reject a transaction instructed by the counterparty.

MT530 Format Specifications

Status	Tag	Qualifier	Generic Field Name	Detailed Field Name	Content/Options	No.
Mandatory Sequence A General Information
M	16R			Start of Block	GENL	1
M	20C	SEME	Reference	Sender's Message Reference	:4!c//16x	2
M	23G			Function of the Message	4!c[/4!c]	3
O	98a	PREP	Date/Time	Preparation Date/Time	A, C, or E	4
----->
O	95a	4!c	Party	(see qualifier description)	L, P, or R	5
-----\|
M	97a	4!c	Account	(see qualifier description)	A, B, or D	6
M	16S			End of Block	GENL	7
End of Sequence A General Information
-----> Mandatory Repetitive Sequence B Request Details
M	16R			Start of Block	REQD	8
----->
M	20a	4!c	Reference	(see qualifier description)	C or U	9
-----\|
----->
M	22F	4!c	Indicator	(see qualifier description)	:4!c/[8c]/4!c	10
-----\|
-----> Optional Repetitive Subsequence B1 Linkages
M	16R			Start of Block	LINK	11
O	22F	LINK	Indicator	Linkage Type Indicator	:4!c/[8c]/4!c	12
O	13a	LINK	Number Identification	Linked Message	A or B	13
M	20a	4!c	Reference	(see qualifier description)	C or U	14
M	16S			End of Block	LINK	15
-----\| End of Subsequence B1 Linkages
M	16S			End of Block	REQD	16
-----\| End of Sequence B Request Details
-----> Optional Repetitive Sequence C Additional Information
M	16R			Start of Block	ADDINFO	17
O	20C	ACOW	Reference	Account Owner Transaction Identification	:4!c//16x	18
O	12A	CLAS	Type of Financial Instrument	Classification Type	:4!c/[8c]/30x	19
O	97a	4!c	Account	(see qualifier description)	A, B, or D	20
O	35B			Identification of the Financial Instrument	[ISIN1!e12!c] [4*35x]	21
O	36a	SETT	Quantity of Financial Instrument	Quantity of Financial Instrument to be Settled	B or D	22
O	90a	BYIY	Price	Buy-in Price	A or B	23
O	19A	BCAM	Amount	Cash Compensation Amount	:4!c//[N]3!a15d	24
----->
O	98a	4!c	Date/Time	(see qualifier description)	A or C	25
-----\|
O	17B	BYIY	Flag	Buy-in	:4!c//1!a	26
----->
O	95a	4!c	Party	(see qualifier description)	P, Q, or R	27
-----\|
Optional Subsequence C1 Status
M	16R			Start of Block	STAT	28
M	25D	IPRC	Status Code	Instruction Processing Status	:4!c/[8c]/4!c	29
-----> Optional Repetitive Subsequence C1a Reason
M	16R			Start of Block	REAS	30
M	24B	4!c	Reason Code	(see qualifier description)	:4!c/[8c]/4!c	31
O	70D	REAS	Narrative	Reason Narrative	:4!c//6*35x	32
M	16S			End of Block	REAS	33
-----\| End of Subsequence C1a Reason
M	16S			End of Block	STAT	34
End of Subsequence C1 Status
M	16S			End of Block	ADDINFO	35
-----\| End of Sequence C Additional Information

MT530 Network Validated Rules

C1 In each occurrence of sequence B, all qualifiers of field 20a are optional, but at least one qualifier (any one) must be present.
C2 In each occurrence of sequence B, all qualifiers of field 22F are optional, but at least one qualifier (any one) must be present.

C3 Within each occurrence of subsequence C1a, the qualifier in field 24B must be the same as the code (Status Code) used with the appropriate qualifier in field 25D of its surrounding subsequence C1.

In each occurrence of sequence C Additional Information
In each occurrence of subsequence C1a Reason (if present) if field :24B:: is ...	Then in subsequence C1 Status, field :25D:: must be ... ⁽¹⁾
:24B::CAND	:25D::IPRC//CAND
:24B::PACK	:25D::IPRC//PACK
:24B::REJT	:25D::IPRC//REJT

⁽¹⁾ if the Data Source Scheme is present in field :25D:: then the conditional rule does not apply.

C4 In sequence A, if field :95L::ALTE is present, then field :95a::ACOW must be present.

MT530 Usage Rules

This message cannot be used to request the modification of trade or event details.

The use of sequence C Additional Information and its fields must be pre-agreed between account servicer and account owner. The fields in that sequence cannot be used to amend a trade or event detail unless authorised by country market practice.