SecuritiesSettlementTransactionModificationRequestV04

Scope
This message is sent by an account owner to an account servicer. 

The account owner will generally be:
- a central securities depository participant which has an account with a central securities depository or a market infrastructure
- an investment manager which has an account with a custodian acting as accounting and/or settlement agent.

It is used to request the modification of non core business data (matching or non-matching) information in a pending or settled instruction. It can also be used for the enrichment of an incomplete transaction.

Usage
The modification must only contain the data to be modified.
The message may also be used to:
- re-send a message sent by the account owner to the account servicer,
- provide a third party with a copy of a message being sent by the account owner for information,
- re-send to a third party a copy of a message being sent by the account owner for information
using the relevant elements in the Business Application Header.

Message Identifier: sese.038.001.04

Elements

Name	Type	Multiplicity	Definition
ModifiedTransactionDetails	TransactionDetails76	[1..1]	Identifies the details of the transaction that is being modified.
UpdateType	UpdateType14Choice	[1..3]	Specifies the type of update requested.

Validation Rules

PhysicalInstructionDetailsUsageRule: PhysicalInstructionDetails can only be used with free of payment instructions.

SecuritiesFinancingSettlementUsageRule: In the framework of Securities Financing (repo, reverse repo, sec lending, sec borrowing), the SettlementInstruction can only be used for the plain vanilla settlement of the opening leg and closing leg.

LinkagesUsageRule: The linkages can only be used when modifying the Paired or Turned Quantity. For the changes of linking and unlinking messages this must be done with the SecuritiesSettlementConditionsModificationRequest.