Validation Rules
ChangeInstructionIndicatorGuideline: ChangeInstructionIndicator may only be used if CorporateActionOptionDetails/WithdrawalAllowedIndicator was set to 'false' or '0' (No) in the CorporateActionNotification message previously received and if CorporateActionOptionDetails/ChangeAllowedIndicator was set to 'true' or '1' (Yes) in the CorporateActionNotification message previously received.
CorporateActionEventIdentificationRule: If the CorporateActionInstruction message was unsolicited (that is, this instruction has not been preceded by a CorporateActionNotification), then, CorporateActionGeneralInformation/CorporateActionEventIdentification must be NONREF.