Validation Rules
PhysicalInstructionDetailsUsageRule: AdditionalPhysicalOrRegistrationDetails can only be used with free of payment instructions.
SecuritiesFinancingSettlementUsageRule: In the framework of Securities Financing (repo, reverse repo, securities lending, securities 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.