Identifies the class or source of the "OrderHandlingInst" values. Scope of this will apply to both CustOrderHandlingInst (1031) and DeskOrderHandlingInst (1035) fields.
Required if CustOrderHandlingInst (1031) and/or DeskOrderHandlingInst (1035) is specified.
| Code | Meaning |
|---|---|
| 1 | FINRA OATS |
| 2 | FIA Execution Source Code |