Tag

Field Name

Req’d

Comment

8

BeginString

Y

FIX 4.2, or another value agreed with FIX Client

9

BodyLength

Y

Message length, in bytes, forward to the CheckSum field.

Always be the second field in any message and must be unencrypted.

35

MsgType

Y

This field defines the FIX message type. It must be the third field in any FIX message and must be unencrypted.

49

SenderCompID

Y

Assigned value used to identify firm sending message.

56

TargetCompID

Y

Assigned value to identify receiving firm.

50

SenderSubID

N

 The fix Client populates this tag with internal numeric trader ID in application messages.

142

SenderLocationID

N

ISO identifier of the physical location of the originating trader's location. Presence of this tag is configurable at session level.

57

TargetSubID

N

Assigned value used to specify individual or unit intended to receive message.

128

DeliverToCompID

N

Tag should be sent if it isn’t empty for fix messages (new, modify and cancel).  

Presence of this tag is configurable at session level.

34

MsgSeqNum

Y

Integer message sequence number.

43

PossDupFlag

N

Always required for retransmitted messages, whether prompted by the sending system or as the result of a resend request.

97

PossResend

N

Required when message may be duplicate of another

52

SendingTime

Y

Time of message transmission.  Always expressed in UTC.

122

OrigSendingTime

N

Required when the message is resent. Specifies the original sending time of the message in UTC.

115

OnBehalfOfCompID

N

Used to identify firm originating message.

The content of the tag is populated by FIX Client based on session level configuration and the following is possible:

- do not populate;

- populate with CQG FCM Name;

- populate with CQG FCM ID.

Note: this tag is used in New Order Single (D), Order Cancel/Replace Request (G) and Order Cancel Request (F) messages.