| Tag | Field Name | Abbr Name | Data Type | Union Datatype | Description | Pedigree |
|---|---|---|---|---|---|---|
| 548 | CrossID | CrssID / ID in CrossOrders | 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 |
|