MassCancelResponse (Tag = 531, Type: char)

Specifies the action taken by counterparty order handling system as a result of the Order Mass Cancel Request (q)

Valid values:
'0' Cancel Request Rejected - See MassCancelRejectReason (532)
'1' Cancel orders for a security
'2' Cancel orders for an Underlying security
'3' Cancel orders for a Product
'4' Cancel orders for a CFICode
'5' Cancel orders for a SecurityType
'6' Cancel orders for a trading session
'7' Cancel all orders

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