| Tag | Field Name | XML Name | Data Type | Union Datatype | Description | Added | Depr. | Enums from tag |
|---|---|---|---|---|---|---|---|---|
| 527 | SecondaryExecID | @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. | Added FIX.4.3 |
|