 | 8 | BeginString |  |
FIX.4.2 (Always unencrypted, must be first field in message)
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| 9 | BodyLength | |
(Always unencrypted, must be second field in message)
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| 35 | MsgType | |
(Always unencrypted, must be third field in message)
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| 49 | SenderCompID | |
(Always unencrypted)
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| 56 | TargetCompID | |
(Always unencrypted)
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| 115 | OnBehalfOfCompID | |
Trading partner company ID used when sending messages via a third party (Can be embedded within encrypted data section.)
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| 128 | DeliverToCompID | |
Trading partner company ID used when sending messages via a third party (Can be embedded within encrypted data section.)
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| 90 | SecureDataLen | |
Required to identify length of encrypted section of message. (Always unencrypted)
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| 91 | SecureData | |
Required when message body is encrypted. Always immediately follows SecureDataLen field.
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| 34 | MsgSeqNum | |
(Can be embedded within encrypted data section.)
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| 50 | SenderSubID | |
(Can be embedded within encrypted data section.)
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| 142 | SenderLocationID | |
Sender's LocationID (i.e. geographic location and/or desk) (Can be embedded within encrypted data section.)
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| 57 | TargetSubID | |
"ADMIN" reserved for administrative messages not intended for a specific user. (Can be embedded within encrypted data section.)
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| 143 | TargetLocationID | |
Trading partner LocationID (i.e. geographic location and/or desk) (Can be embedded within encrypted data section.)
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| 116 | OnBehalfOfSubID | |
Trading partner SubID used when delivering messages via a third party. (Can be embedded within encrypted data section.)
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| 144 | OnBehalfOfLocationID | |
Trading partner LocationID (i.e. geographic location and/or desk) used when delivering messages via a third party. (Can be embedded within encrypted data section.)
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| 129 | DeliverToSubID | |
Trading partner SubID used when delivering messages via a third party. (Can be embedded within encrypted data section.)
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| 145 | DeliverToLocationID | |
Trading partner LocationID (i.e. geographic location and/or desk) used when delivering messages via a third party. (Can be embedded within encrypted data section.)
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| 43 | PossDupFlag | |
Always required for retransmitted messages, whether prompted by the sending system or as the result of a resend request. (Can be embedded within encrypted data section.)
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| 97 | PossResend | |
Required when message may be duplicate of another message sent under a different sequence number. (Can be embedded within encrypted data section.)
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| 52 | SendingTime | |
(Can be embedded within encrypted data section.)
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| 122 | OrigSendingTime | |
Required for message resent as a result of a ResendRequest. If data is not available set to same value as SendingTime (Can be embedded within encrypted data section.)
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| 212 | XmlDataLen | |
Required when specifying XmlData to identify the length of a XmlData message block. (Can be embedded within encrypted data section.)
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| 213 | XmlData | |
Can contain a XML formatted message block (e.g. FIXML). Always immediately follows XmlDataLen field. (Can be embedded within encrypted data section.)
See Appendix M – FIXML Support
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| 347 | MessageEncoding | |
Type of message encoding (non-ASCII characters) used in a message’s "Encoded" fields. Required if any "Encoding" fields are used.
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| 369 | LastMsgSeqNumProcessed | |
The last MsgSeqNum value received and processed. Can be specified on every message sent. Useful for detecting a backlog with a counterparty.
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| 370 | OnBehalfOfSendingTime | |
Used when a message is sent via a "hub" or "service bureau". If A sends to Q (the hub) who then sends to B via a separate FIX session, then when Q sends to B the value of this field should represent the SendingTime on the message A sent to Q. (always expressed in UTC (Universal Time Coordinated, also known as "GMT")
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