| Tag | Field Name | Data Type | Union Datatype | Description | Added | Depr. | Enums from tag |
|---|---|---|---|---|---|---|---|
| 551 | OrigCrossID | String |
CrossID of the previous cross order (NOT the initial cross order of the day) as assigned by the institution, used to identify the previous cross order in Cross Cancel and Cross Cancel/Replace Requests. | Added FIX.4.3 |
|