Administrative

Login (35=A)

TAG	NAME	TYPE	REQ	DESCRIPTION
108	HeartBtInt	int	Y	Heartbeat interval (seconds).
141	ResetSeqNumFlag	boolean	N	Indicates both sides of the FIX session should reset sequence numbers.
553	Username	string	C	Sender's public API Key, required on messages going to the exchange.
554	Password	string	C	A base64 encoded signature generated using HMAC-SHA-256, required on messages going to the exchange.Password = base64(HMAC-SHA-256(secret, message))With message being a concatenation of the following:SendingTime + MsgType + MsgSeqNum + SenderCompID + TargetCompID + UsernameNote: Ensure all parts of the message are converted to strings before encoding.
58	Text	string	C	To ExchangeA space-separated tag value pair of session configuration parameters applicable for the current session until the next logon.Supported values include:CancelOnDisconnect=Y (Cancels all open orders when the session ends)From ExchangeAdditional explanation regarding the Logon response from the exchange.
98	EncryptMethod	int	N	Method of encryption.No encryption methods are supported, must be set to 0.
1409	SessionStatus	int	C	Response code sent by the exchange indicating the status of the logon: 0 — Session active, logon successful 5 — Invalid API key or signature 6 — Account locked 7 — Logins are not allowed at this time 9 — Received MsgSeqNum(34) is too low
1137	DefaultApplVerID	string	Y	Contains the version of the FIX protocol the exchange uses. Only FIX50SP2 is supported. Supported values: 9.

BusinessReject (35=j)

TAG	NAME	TYPE	REQ	DESCRIPTION
45	RefSeqNum	int	Y	The MsgSeqNum of the referenced message that was rejected.
372	RefMsgType	int	Y	The message type that this business-level reject message applies to: A — Logon 0 — Heartbeat 1 — TestRequest D — NewOrderSingle F — OrderCancelRequest G — OrderCancelReplaceRequest
379	BusinessRejectRefID	string	Y	The value of the business-level "ID" field on the message being referenced.
380	BusinessRejectReason	int	N	A code indicating the reason for the reject.
58	Text	string	Y	A message explaining why the message was rejected.

Heartbeat (35=0)

TAG	NAME	TYPE	REQ	DESCRIPTION
112	TestReqId	string	C	Unique identifier passed in the corresponding tag of a TestRequest. Required only when responding to a TestRequest message.

TestRequest (35=1)

TAG	NAME	TYPE	REQ	DESCRIPTION
112	TestRequestID	string	Y	A unique identifier specified by the sender that must be provided back in the response.

ResendRequest (35=2)

TAG	NAME	TYPE	REQ	DESCRIPTION
7	BeginSeqNo	int	Y	Message sequence number of first message in range to be resent.
16	EndSeqNo	int	Y	Message sequence number of last message in range to be resent.If request is for a single message then BeginSeqNo (7) = EndSeqNo.If request is for all messages subsequent to a particular message, EndSeqNo = 0 (representing infinity).

Reject (35=3)

TAG	NAME	TYPE	REQ	DESCRIPTION
45	RefSeqNum	int	Y	Sequence number of the rejected message.
371	RefTagId	int	C	FIX tag of the message contributing to the reject.
372	RefMsgType	string	C	Message type of the rejected message.
373	SessionRejectReason	int	C	A code to describe the reason for the reject.
58	Text	string	C	Additional explanation for the reject.

SequenceReset (35=4)

TAG	NAME	TYPE	REQ	DESCRIPTION
123	GapFillFlag	boolean	C	Indicates a sequence gap during replay due to administrative messages that will not get resent.
36	NewSeqNo	int	Y	The new sequence number to start using.

Logout (35=5)

TAG	NAME	TYPE	REQ	DESCRIPTION
1409	SessionStatus	int	C	A code indicating the cause of the FIX session logout.
58	Text	string	C	Additional text describing context behind the logout.