| Tag | Field Name | XML Name | Data Type | Union Datatype | Description | Added | Depr. | Enums from tag | Valid values |
|---|---|---|---|---|---|---|---|---|---|
| 1059 | UnderlyingInstrumentPartyID | @ID | String |
PartyID value within an underlying instrument party repeating group. Same values as PartyID (448) | FIX.4.4 / EP8 |
|