| Tag | Field Name | Data Type | Description | Used in |
|---|---|---|---|---|
| 527 | SecondaryExecID AbbrName: ExecID2 |
String | Assigned by the party which accepts the order. Can be used to provide the ExecID (17) used by an exchange or executing system. |
ExecAllocGrp TradeCaptureReport TradeCaptureReportAck ExecutionReport |