8

BeginString

Y

FIX.4.4 (always unencrypted, must be second field in message)

String

9

BodyLength

Y

(Always unencrypted, must be second field in message)

Length

35

MsgType

Y

(Always unencrypted, must be third field in message)

String

49

SenderCompID

Y

(Always unencrypted). Identifies the firm sending the message.

String

56

TargetCompID

Y

(Always unencrypted).  Identifies the firm receiving the message.

String

57

TargetSubID

N

(Always unencrypted).  Identifies the firm receiving the message.

String

34

MsgSeqNum

Y

(Can be embedded within encrypted data section.)

SeqNum

43

PossDupFlag

N

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.)

Boolean

97

PossResend

N

Required when message may be duplicate of another message sent under a different sequence number. (Can be embedded within encrypted data section.)

Boolean

52

SendingTime

Y

Can be embedded within encrypted data section.

UTCTimeStamp

122

OrigSendingTime

N

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.)

UTCTimeStamp

347

MessageEncoding

N

Type of message encoding (non-ASCII (non-English) characters) used in a message’s “Encoded” fields.

String