FIX Protocol Tag 21: HandlInst
Order handling instruction for the broker: automated execution with no broker intervention, automated execution with broker intervention allowed, or manual handling.
- Tag number
- 21
- Data type
- CHAR
- FIX versions
- FIX 4.0 to 5.0 SP2
- Used in
- 8 message types
Practical notes on HandlInst
HandlInst tells the broker how the order may be handled: 1 automated with no broker intervention, 2 automated with intervention allowed, 3 manual.
- Electronic order flow to brokers and venues normally sends 1.
Changes between FIX versions
- Required on New Order Single up to FIX 4.3, optional from FIX 4.4. Venues still often require it.
Tag 21 in each FIX version
Values and message usage as defined in a specific version.
Data type
CHAR: A single character.
Valid values
3 enumerated values across all FIX versions.
Example
21=1
Illustrative value. In a message, fields are separated by the SOH character (0x01), often shown as | or ^ in logs.
Decode a message with this tagMessage types that use tag 21
- Execution Report 35=8
- New Order Single 35=D
- New Order List 35=E
- Order Cancel/Replace Request 35=G
- New Order Multileg 35=AB
- Multileg Order Cancel/Replace 35=AC
- New Order Cross 35=s
- Cross Order Cancel Replace Request 35=t
Covers every version from FIX 4.0 to 5.0 SP2, including fields reached through components and repeating groups. The version pages above show whether the tag is required in each message.
Field and message data comes from the QuickFIX data dictionaries for FIX 4.0 to 5.0 SP2 and FIXT 1.1, used under the QuickFIX Software License. This product includes software developed by quickfixengine.org (http://www.quickfixengine.org/). Enumerated value names are converted to plain text for reading.