| Tag | Field Name | Data Type | Union Datatype | Description | Added | Depr. | Enums from tag |
|---|---|---|---|---|---|---|---|
| 548 | CrossID | String |
Identifier for a cross order. Must be unique during a given trading day. Recommend that firms use the order date as part of the CrossID for Good Till Cancel (GT) orders. | Added FIX.4.3 |
|