PurgeNotificationUSOptionsV1 Message Fields
| Field Name | Offset | Length | Data Type | Description |
|---|---|---|---|---|
| StartOfMessage | 0 | 2 | Binary | 0xB0 0xE3 (58288) |
| MessageLength | 2 | 2 | Binary | |
| MessageType | 4 | 2 | Binary | 0x09DF (2527) |
| MatchingUnit | 6 | 1 | Binary | |
| Reserved | 7 | 1 | Binary | Value sent to member not specified |
| SequenceNumber | 8 | 4 | Binary | Zero - unsequenced application message |
| InFlight | 12 | 2 | Binary | |
| TransactionTime | 14 | 8 | DateTime | |
| MassCancelID | 22 | 20 | Text | |
| CancelledOrderCount | 42 | 4 | Binary | |
| SourceMatchingUnit | 46 | 1 | Binary | |
| ClearingFirm | 47 | 4 | Alpha | |
| RiskRoot | 51 | 6 | Text | |
| MassCancelLockout | 57 | 1 | Text |