Reason for submission of mass action.
| 0 | = | No special reason (default)  | Added EP223
 |  | [None] | 
| 1 | = | Trading risk control General violation of trading rules. Can be used if specific reason is unavailable or must not be disclosed.  | Added EP223
 |  | [TradingRiskControl] | 
| 2 | = | Clearing risk control General violation of clearing rules. Can be used if specific reason is unavailable or must not be disclosed.  | Added EP223
 |  | [ClearingRiskControl] | 
| 3 | = | Market maker protection Specific action taken to prevent further executions for a market maker.  | Added EP223
 |  | [MarketMakerProtection] | 
| 4 | = | Stop trading Specific action taken in conjunction with the prevention of further trading. Scope can be defined with TargetParties component.  | Added EP223
 |  | [StopTrading] | 
| 5 | = | Emergency action Specific action taken due to an emergency condition. Scope can be defined with TargetParties component.  | Added EP223
 |  | [EmergencyAction] | 
| 6 | = | Session loss or logout Protection of trader or firm after having lost connectivity.  | Added EP223
 |  | [SessionLossLogout] | 
| 7 | = | Duplicate login Trader only allowed to login once.  | Added EP223
 |  | [DuplicateLogin] | 
| 8 | = | Product not traded Product not available for trading, e.g. in a halted state.  | Added EP223
 |  | [ProductNotTraded] | 
| 9 | = | Instrument not traded Instrument not available for trading, e.g. due to intra-day expiration.  | Added EP223
 |  | [InstrumentNotTraded] | 
| 10 | = | Complex instrument deleted Removal of complex instrument, e.g. due to expiry, leading to mass action on open orders.  | Added EP223
 |  | [CompleInstrumentDeleted] | 
| 11 | = | Circuit breaker activated Trading interruption leading to mass action on open orders.  | Added EP223
 |  | [CircuitBreakerActivated] | 
| 99 | = | Other  | Added EP223
 |  | [Other] |