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The MarketFactory FIX Drop Copy Server works as per the standard FIX Spec (4.4) with regards to the following messages:

MsgType (tag 35)	Message	Description

Notes


A	Logon	Initiates a FIX session. Heartbeat interval must be between 2 and 60, inclusive or the Logon attempt will be rejected.
0	Heartbeat

Monitors the status of the connection.

1

Resend

Test Request

Requests a Heartbeat from receiver.

2

Session Reject

Resend Request

Requests re-transmission of messages.

3

Sequence Reset

Reject

Session level message rejection.


4	Sequence Reset

(Gap Fill)	Reset receiver’s sequence number.
5	Logout

...

Terminates a FIX session.

Logon

Tag	Field	Description	Req	Format	Notes

Standard FIX Header

Y

		35='A'
108	HeartBtInt	Used to determine the heartbeat interval.	Y	Int

(Seconds)

>=2 AND <=

60

60 (Seconds)
554	Password	Password provided by MF	Y	String

Heartbeat

Tag	Field	Description	Req	Format	Notes
	Standard FIX Header		Y		35='0'
112	TestReqID

String

...

Conditionally populated if the Heartbeat is sent in response to a TestRequest.

C

String

Free-form text string as populated in the TestRequest. e.g. UTC/Epoch Timestamp

Test Request

Tag	Field	Description	Req	Format	Notes


	Standard FIX Header

Y

	Y		35='1'
112	TestReqID	Free-form text string to be returned in resulting Heartbeat.	Y	String	E.g. UTC/Epoch Timestamp.

Resend Request

Tag	Field	Description	Req	Format	Notes
	Standard FIX Header		Y		35='2'
7	BeginSeqNo

Message sequence number of first message in range to be resent.

Y

Int

-
16	EndSeqNo

Message sequence number of last message in range to be resent.

Y

Int

If request is for a single message BeginSeqNo (7) = EndSeqNo.

If request is for all messages subsequent to a particular message, EndSeqNo = "0" (representing infinity).

Reject

Tag	Field	Description	Req	Format	Notes
	Standard FIX Header		Y		35='3'
45	RefSeqNum	FIX sequence number of the rejected message.	Y	SeqNum	-
58	Text	Human-friendly string providing reason for rejection.	Y	String	-

Sequence Reset (Gap Fill)

Tag	Field	Description	Req	Format	Notes
	Standard FIX Header		Y		35='4'
23	GapFillFlag	-	Y	String	Always 'Y'.
36	NewSeqNo	The sequence number of the next message which will be transmitted by the sender	Y	SeqNum	-

Logout

Tag	Field	Description	Req	Format	Notes
	Standard FIX Header		Y		35='5'
58	Text	Human-friendly string providing reason for logout.	Y	String	-

=Infinity

Versions Compared

Old Version 8

New Version Current

Key

Logon

Heartbeat

Test Request

Resend Request

Reject

Sequence Reset (Gap Fill)

Logout