INTX FIX Order Entry Messages

NewOrderSingle (35=D)

Used to submit a new spot or perpetual future order.

Tag	Name	Type	Required	Description
11	ClOrdID	string	Y	An identifier specified by the sender to uniquely identify other messages correlating to this request. Must not exceed 18-31 characters depending on the character range or must be a variant 1 UUIDv4: 18 = All ASCII characters 20 = Alphanumeric characters and dash (-) 31 = Hexadecimal characters (0-9, a-f, lowercase and no preceding 0s) 36 = A UUID in standard format If using a UUID it must be a variant 1 UUIDv4 that follows the standard format. This means all lowercase and hyphens that group the characters in sequences of 8, 4, 4, 4, 12 (e.g. 1985ca2d-61ef-49f1-bfce-6c39d8462914). Failure to follow this formatting will result in a reject.
453	NoPartyIDs	int	C	Marks the beginning of the Parties repeating group component. Currently a max of 1 party is supported to specify the portfolio UUID. In the future additional parties may get added. Supported values: 1 = Specify portfolio UUID or client UUID If no party is specified the message applies to the default portfolio UUID affiliated with the API key.
→ 448	PartyID	string	C	The unique identifier representing the party entry or portfolio that this order originates from. When PartyRole (452) = 24, set PartyID (448) equal to the UUID of the desired portfolio for this order. You can obtain this portfolio UUID in the response of the List all user portfolios endpoint.
→ 452	PartyRole	int	C	The type of party entry that the PartyID (448) value represents. Currently supports: 3 = Client ID 24 = Customer account The Customer Account (24) value indicates the PartyID value contains the UUID of the portfolio affiliated with the message. The Client ID (3) value indicates the PartyID value contains the UUID of a client managed by the broker (only applies to brokers).
18	ExecInst	char	N	The execution instruction flags for the order. Multiple values should be space delimited. Currently supports: 6 = Post only E = Close only r = Reduce only Note: Close only orders must reduce the overall position size for a given instrument. Close only orders that increase position size will be rejected.
38	OrderQty	decimal	Y	The amount of the base asset to be transacted.
40	OrdType	char	Y	The type of order for the request which can be: 1 = Market 2 = Limit 3 = Stop 4 = Stop Limit O = Take Profit Stop Loss Note: Market (1) orders automatically get converted to aggressively priced limit orders.
44	Price	decimal	C	The limit price for limit orders of the quote asset or USDC for perpetual futures. The decimal precision must fall within the requirements for each market, see the REST API for precision and decimal limits.
54	Side	char	Y	Side of the order, valid options: 1 = Buy 2 = Sell
55	Symbol	string	Y	Symbol of the instrument being traded (e.g. BTC-USDC or BTC-PERP)
59	TimeInForce	char	Y	Specifies how long the order remains in effect. The following values are supported: 1 = Good Till Cancel (GTC, up to 30 days) 3 = Immediate or Cancel (IOC) 4 = Fill or Kill (FOK) 6 = Good Till Time (GTT, up to 30 days)
126	ExpireTime	utc timestamp	C	Required when TimeInForce (59) is set to GTT (6). Specifies the time when a GTT order expires. Time expressed in UTC, microseconds: YYYYMMDD-HH:MM:SS.ssssss
99	StopPx	decimal	C	Specifies the quote price at which the order activates for Stop, Stop Limit and TP/SL order types (40=3, 40=4, or 40=O).
3040	StopLimitPx	decimal	N	Specifies the limit price at which the TP/SL stop leg order is entered (40=O).
8000	SelfTradePreventionStrategy	char	N	The following values specify what to do when two orders submitted by the same Organization/Account attempt to match: N = Cancel aggressing order Q = Cancel both orders O = Cancel resting order D = Decrement and cancel Default if not specified is Cancel both orders (Q).
847	TargetStrategy	int	C	Specifies the trading strategy. The following value is supported: 1001 = TWAP

OrderCancelReplaceRequest (35=G)

Used to modify a parameter of an existing order that is still live on exchange. Only the price and quantity can be modified.

Tag	Name	Type	Required	Description
11	ClOrdID	string	Y	An identifier specified by the sender to uniquely identify other messages correlating to this request. Must not exceed 18-31 characters depending on the character range or must be a variant 1 UUIDv4: 18 = All ASCII characters 20 = Alphanumeric characters and dash (-) 31 = Hexadecimal characters (0-9, a-f, lowercase and no preceding 0s) 36 = A UUID in standard format If using a UUID it must be a variant 1 UUIDv4 that follows the standard format. This means all lowercase and hyphens that group the characters in sequences of 8, 4, 4, 4, 12 (e.g. `1985ca2d-61ef-49f1-bfce-6c39d8462914`). Failure to follow this formatting will result in a reject.
453	NoPartyIDs	int	C	Marks the beginning of the Parties repeating group component. Currently a max of 1 party is supported to specify the portfolio UUID. In the future additional parties may get added. Supported values: 1 = Specify portfolio UUID or client UUID If no party is specified the message applies to the default portfolio UUID affiliated with the API key. If populated it must match the value on the referenced order specified in the OrigClOrdID(41).
→ 448	PartyID	string	C	The unique identifier used to represent the party entry. If populated it must match the value on the referenced order specified in the OrigClOrdID(41).
→ 452	PartyRole	int	C	The type of party entry that the PartyID (448) value represents. Currently supports: 3 = Client ID 24 = Customer account The Customer Account (24) value indicates the PartyID value contains the UUID of the portfolio affiliated with the message. The Client ID (3) value indicates the PartyID value contains the UUID of a client managed by the broker (only applies to brokers). If populated it must match the value on the referenced order specified in the OrigClOrdID(41).
41	OrigClOrdID	string	Y	An identifier matching the ClOrdID from the OrderSingle or OrderCancelReplaceRequest that this request applies to.
38	OrderQty	decimal	N	The amount of the base asset to be transacted, this value can be changed from the order referenced in OrigClOrdId(41)
44	Price	decimal	N	The limit price for limit orders of the quote asset or USDC for perpetual futures. The decimal precision must fall within the requirements for each market, see the REST API for precision and decimal limits. This value can be different from the message that the OrigClOrdID references.
55	Symbol	string	Y	Must match the symbol on the message that the OrigClOrdID references.
99	StopPx	decimal	N	Specifies the quote price at which the order activates for Stop and Stop Limit order types (44=3 or 44=4). Must match the StopPx on the message that OrigClOrdId references.
40	OrdType	char	C	The order type. Required when changing the order type. Supported values: 1 = Market, 2 = Limit, 3 = Stop, 4 = Stop Limit, O = Take Profit Stop Loss.
3040	StopLimitPx	decimal	N	The limit order price used when a stop loss is triggered for Take Profit Stop Loss orders.

OrderCancelRequest (35=F)

Used to cancel an order that is still live on the exchange.

Tag	Name	Type	Required	Description
11	ClOrdID	string	Y	An identifier specified by the sender to uniquely identify other messages correlating to this request. Must not exceed 18-31 characters depending on the character range or must be a variant 1 UUIDv4: 18 = All ASCII characters 20 = Alphanumeric characters and dash (-) 31 = Hexadecimal characters (0-9, a-f, lowercase and no preceding 0s) 36 = A UUID in standard format If using a UUID it must be a variant 1 UUIDv4 that follows the standard format. This means all lowercase and hyphens that group the characters in sequences of 8, 4, 4, 4, 12 (e.g. 1985ca2d-61ef-49f1-bfce-6c39d8462914). Failure to follow this formatting will result in a reject.
453	NoPartyIDs	int	C	Marks the beginning of the Parties repeating group component. Currently a max of 1 party is supported to specify the portfolio UUID. In the future additional parties may get added. Supported values: 1 = Specify portfolio UUID or client UUID If no party is specified the message applies to the default portfolio UUID affiliated with the API key. If populated it must match the value on the referenced order specified in the OrigClOrdID(41).
→ 448	PartyID	string	C	The unique identifier used to represent the party entry. If populated it must match the value on the referenced order specified in the OrigClOrdID(41).
→ 452	PartyRole	int	C	The type of party entry that the PartyID (448) value represents. Currently supports: 3 = Client ID 24 = Customer account The Customer Account (24) value indicates the PartyID value contains the UUID of the portfolio affiliated with the message. The Client ID (3) value indicates the PartyID value contains the UUID of a client managed by the broker (only applies to brokers). If populated it must match the value on the referenced order specified in the OrigClOrdID(41).
41	OrigClOrdID	string	Y	An identifier matching the ClOrdID from the OrderSingle or OrderCancelReplaceRequest that this request applies to.
55	Symbol	string	Y	Must match the message that the OrigClOrdID references.

OrderMassCancelRequest (35=q)

Used to cancel multiple orders that is still live on the exchange.

Tag	Name	Type	Required	Description
11	ClOrdID	string	Y	An identifier specified by the sender to uniquely identify other messages correlating to this request. Must not exceed 18-31 characters depending on the character range or must be a variant 1 UUIDv4: 18 = All ASCII characters 20 = Alphanumeric characters and dash (-) 31 = Hexadecimal characters (0-9, a-f, lowercase and no preceding 0s) 36 = A UUID in standard format If using a UUID it must be a variant 1 UUIDv4 that follows the standard format. This means all lowercase and hyphens that group the characters in sequences of 8, 4, 4, 4, 12 (e.g. 1985ca2d-61ef-49f1-bfce-6c39d8462914). Failure to follow this formatting will result in a reject.
54	Side	char	N	Side of the order, valid options: 1 = Buy 2 = Sell. If `Side` is not provided, the request cancels all orders in that portfolio regardless of side.
55	Symbol	string	N	Symbol of the instrument being traded (e.g. BTC-USDC or BTC-PERP). If `Symbol` is not provided, the request cancels all orders in that portfolio regardless of symbol.
453	NoPartyIDs	int	C	Marks the beginning of the Parties repeating group component. Currently a max of 1 party is supported to specify the portfolio UUID. In the future additional parties may get added. Supported values: 1 = Specify portfolio UUID or client UUID If no party is specified the message applies to the default portfolio UUID affiliated with the API key. If populated it must match the value on the referenced order specified in the OrigClOrdID(41).
→ 448	PartyID	string	C	The unique identifier used to represent the party entry. If populated it must match the value on the referenced order specified in the OrigClOrdID(41).
→ 452	PartyRole	int	C	The type of party entry that the PartyID (448) value represents. Currently supports: 3 = Client ID 24 = Customer account The Customer Account (24) value indicates the PartyID value contains the UUID of the portfolio affiliated with the message. The Client ID (3) value indicates the PartyID value contains the UUID of a client managed by the broker (only applies to brokers). If populated it must match the value on the referenced order specified in the OrigClOrdID(41).

ExecutionReport (35=8)

Sent by the exchange to provide an update on a submitted order.

Tag	Name	Type	Required	Description
11	ClOrdID	string	Y	An identifier specified by the sender to uniquely identify other messages relating to this request.
41	OrigClOrdID	string	C	An identifier matching the ClOrdID from the OrderSingle or OrderCancelReplaceRequest if this execution report belongs to an OrderCancelRequest or an OrderCancelReplaceRequest.
880	TrdMatchID	string	C	A unique ID provided on trade messages that is affiliated with the match. The same ID is provided on both sides of the trade which can aid in self trade detection.
17	ExecID	string	Y	A globally unique 64bit monotonically increasing integer identifier specified by Coinbase International that identifies an event generated in the system. Please reference this identifier when speaking with Coinbase International Support.
20	ExecTransType	char	Y	Indicates whether this message is original or an amendment. The potential values include: 0 = New 1 = Cancel 2 = Correct All original messages get marked as New. Trade busts get marked as Cancel and trade corrections get marked as Correct. The trade bust and correct functionality will get implemented at a future date.
37	OrderID	string	Y	A unique identifier assigned by the exchange for the order. Please use this ID when referencing the order for support.
453	NoPartyIDs	int	C	Marks the beginning of the Parties repeating group component. Currently a max of 1 party is supported to specify the portfolio UUID. In the future additional parties may get added. Supported values: 1 = Specify portfolio UUID or client UUID If no party is specified the message applies to the default portfolio UUID affiliated with the API key.
→ 448	PartyID	string	C	The unique identifier used to represent the party entry.
→ 452	PartyRole	int	C	The type of party entry that the PartyID (448) value represents. Currently supports: 3 = Client ID 24 = Customer account The Customer Account (24) value indicates the PartyID value contains the UUID of the portfolio affiliated with the message. The Client ID (3) value indicates the PartyID value contains the UUID of a client managed by the broker (only applies to brokers).
150	ExecType	char	Y	The type of execution report indicating what happened to the order. Potential values include: 0 = New 1 = Partial Fill 2 = Fill 4 = Canceled 5 = Replaced 6 = Pending Cancel 8 = Rejected A = Pending New C = Expired D = Decremented E = Pending Replace L = Stop Triggered
39	OrdStatus	char	Y	Identifies the current state of the order. The potential values include: 0 = New 1 = Partially Filled 2 = Filled 4 = Canceled 5 = Replaced 6 = Pending Cancel 8 = Rejected A = Pending New D = Decremented E = Pending Replace U = Undefined
103	OrdRejReason	int	C	Used for reject messages, a set of code based references for common types of rejects. The potential values include: 0 = Unknown 1 = Unknown symbol 6 = Duplicate order 13 = Invalid quantity 15 = Unknown accounts 16 = Price exceeds current price band 18 = Invalid price increment 25 = Insufficient credit limit 40 = In liquidation 41 = Exceeded position limit 42 = Invalid client 43 = Client permission error 44 = Not allowed by market state 45 = Invalid order parameter 46 = Invalid price 47 = Close only 48 = Reduce only 49 = Broker 51 = Exchange closed 52 = Order exceeds limit 53 = Too late to enter 55 = Duplicate of a verbally communicated order 56 = Stale order 57 = Trade along required 58 = Invalid investor ID 59 = Unsupported order characteristic 60 = Surveillance option 61 = Incorrect allocated quantity 62 = Unknown account 64 = Coinbase exchange deposit failed 99 = Other
55	Symbol	string	Y	Symbol of the instrument being traded (e.g. BTC-USDC or BTC-PERP)
54	Side	char	Y	Side of the order, valid options: 1 = Buy 2 = Sell
38	OrderQty	decimal	C	Required for limit orders. The quantity specified on the order.
40	OrdType	char	Y	The order type specified on the order.
44	Price	decimal	C	Required for limit orders. Price specified on the order.
99	StopPx	decimal	C	Required for stop orders. The stop price specified on the order.
3040	StopLimitPx	decimal	C	Required for TP/SL orders. The stop leg limit price specified on the order.
15	Currency	string	Y	The currency used for prices and commission values reflected in this message.
59	TimeInForce	char	N	Time in force specified on the order. The following values are supported: 1 = Good Till Cancel (GTC, up to 30 days) 3 = Immediate or Cancel (IOC) 4 = Fill or Kill (FOK) 6 = Good Till Time (GTT, up to 30 days)
126	ExpireTime	utc timestamp	C	Required when TimeInForce (59) is set to GTT (6). Specifies the time when a GTT order expires.
18	ExecInst	char	N	The execution instruction flags for the order. Multiple values should be space delimited. Currently supports: 6 = Post only E = Close only r = Reduce only
32	LastQty	decimal	C	Required for trades (150=1 or 150=2). Represents the total amount of the order’s specified OrderQty that traded.
31	LastPx	decimal	C	Required for trades (150=1 or 150=2). Price in the currency (tag 15) at which the LastQty (tag 32) amount traded.
151	LeavesQty	decimal	Y	The amount of the OrderQty that remains open for further execution.
14	CumQty	decimal	Y	The total amount of the OrderQty that has traded so far including the LastQty amount if applicable (i.e. if 150=1 or 150=2).
6	AvgPx	decimal	Y	The average price in Currency (tag 15) of the CumQty (tag 14) traded at so far including the current trade if applicable (i.e. if 150=1 or 150=2).
60	TransactTime	utc timestamp	Y	The original time that this execution report occurred (useful for replays).
58	Text	string	N	A text message that gets populated when the context of the execution report requires explanation (e.g. rejects or unsolicited cancels).
851	LastLiquidityInd	int	C	Provided for trades (150=1 or 150=2). Provides context on how the order traded on the exchange for use in reference to trading fees. Values include: 1 = Added liquidity 2 = Removed liquidity
136	NoMiscFees	int	C	Used for trades (150=1 or 150=2). Provides information on the fees affiliated with the transaction. If specified and the value is > 0 it marks the beginning of a repeating group of the following 3 tags.
→ 137	MiscFeeAmt	decimal	C	The total fee amount in units of MiscFeeCurr
→ 138	MiscFeeCurr	string	C	The currency the fee amount is charged in (e.g. USDC)
→ 139	MiscFeeType	string	C	Specifies the type of fee. Values may include: 4 = Exchange fees 7 = Other
8000	SelfTradePreventionStrategy	char	Y	The self trade prevention strategy associated with the order. The following values specify what to do when two orders submitted by the same Organization/Account attempt to match: N = Cancel aggressing order Q = Cancel both orders O = Cancel resting order D = Decrement and cancel smaller order Default if not specified is Cancel both orders (Q).
847	TargetStrategy	int	C	Specifies the trading strategy. The following value is supported: 1001 = TWAP
1430	VenueType	char	N	Indicates the venue type. Values include: E = Coinbase International Exchange Electronic Exchange N = Coinbase International Exchange Quote Negotiation Q = Coinbase Exchange Quote Negotiation X = Coinbase Exchange Electronic Exchange

OrderMassCancelReport (35=r)

Sent by the exchange to provide an update on a submitted order mass cancel.

Tag	Name	Type	Required	Description
11	ClOrdID	string	Y	An identifier specified by the sender to uniquely identify other messages relating to this request.
1369	MassActionReportID	string	Y	A globally unique 64bit monotonically increasing integer identifier specified by Coinbase International that identifies an event generated in the system. Please reference this identifier when speaking with Coinbase International Support.
55	Symbol	string	N	Symbol of the instrument being traded (e.g. BTC-USDC or BTC-PERP)
54	Side	char	N	Side of the order, valid options: 1 = Buy 2 = Sell
531	MassCancelResponse	char	Y	Identifies the response of order mass cancel request. For accepted requests, the value will be `CANCEL_ALL_ORDERS (7)`. For rejected requests, the value will be `CANCEL_REQUEST_REJECTED (0)` and `MassCancelRejectReason` will be provided. The potential values include: 0 = Cancel Request Rejected 1 = Cancel orders for a security 2 = Cancel orders for an Underlying security 3 = Cancel orders for a Product 4 = Cancel orders for a CFICode 5 = Cancel orders for a SecurityType 6 = Cancel orders for a trading session 7 = Cancel all orders
532	MassCancelRejectReason	int	N	Identifies the rejected reason of order mass cancel request. For rejected requests, the value will be `MASS_CANCEL_NOT_SUPPORTED (0)`. The potential values include: 0 = Mass Cancel Not Supported 1 = Invalid or unknown Security 2 = Invalid or unknown Underlying security 3 = Invalid or unknown Product 4 = Invalid or unknown CFICode 5 = Invalid or unknown SecurityType 6 = Invalid or unknown trading session 99 = Other
533	TotalAffectedOrders	decimal	N	Total number of orders affected by order mass cancel request
60	TransactTime	utc timestamp	N	The original time that this order mass cancel report occurred
58	Text	string	N	A message providing more detail about the order mass cancel reject

OrderCancelReject (35=9)

Sent by the exchange when a cancel or cancel-replace request fails.

Tag	Name	Type	Required	Description
11	ClOrdID	string	Y	An identifier specified by the sender to uniquely identify other messages correlating to this request.
41	OrigClOrdID	string	Y	An identifier matching the ClOrdID from the OrderSingle or OrderCancelReplaceRequest that this request applies to.
37	OrderID	string	Y	An identifier specified by Coinbase International that uniquely identifies the order in the system. Please reference this identifier when speaking with Coinbase International Support. If the cancel or cancel-replace request was unable to find the OrigClOrdID specified in the message this value contains the text `NONE`.
58	Text	string	N	A message providing more detail about the cancel reject
102	CxlRejReason	int	N	A code to identify common reasons for the cancel reject. Potential values include: 0 = Too late to cancel 1 = Unknown order 3 = Order already pending cancel or cancel replace 6 = Duplicate order 8 = Price exceeds current price band 13 = Invalid quantity 15 = Unknown accounts 18 = Invalid price increment 25 = Insufficient credit limit 27 = Broker 28 = Unable to process order mass cancel request 29 = OrigOrdModTime 30 = Duplicate ClOrdID 31 = Price exceeds current price 40 = In liquidation 41 = Exceeded position limit 42 = Invalid client 43 = Client permission error 44 = Not allowed by market state 45 = Invalid order parameter 46 = Invalid price 99 = Other	int	N	A code to identify common reasons why for the cancel reject. Potential values include: 0 = Too late to cancel 1 = Unknown order 3 = Order already pending cancel or cancel replace
434	CxlRejResponseTo	char	Y	Indicates whether this message is in response to a cancel request or cancel replace request. Values include: 1 = Order Cancel Request 2 = Order Cancel/Replace Request

BusinessMessageReject (35=j)

An application level reject message sent when the FIX session can’t process a message.

Tag	Name	Type	Required	Description
45	RefSeqNum	int	N	The MsgSeqNum of the referenced message that was rejected.
372	RefMsgType	int	Y	The message type that this reject message applies to. Supported values include: A = Logon 0 = Heartbeat 1 = TestRequest D = NewOrderSingle F = OrderCancelRequest G = OrderCancelReplaceRequest F1 = LastExecIDRequest F3 = EventResendRequest x = SecurityListRequest V = MarketDataRequest
379	BusinessRejectRefID	string	N	An identifier pointing to the message referenced for this reject. In the context of an order request this points to the ClOrdId.
380	BusinessRejectReason	int	Y	A code to quickly identify common reasons for a reject. Values could include: 0 = Other 1 = Unknown ID 2 = Unknown security 3 = Unsupported message type 4 = Application not available 5 = Conditionally required field missing 6 = Not authorized 7 = Venue not available
58	Text	string	N	A message explaining why the message was rejected.
354	EncodedTextLen	int	N	Byte length of EncodedText (355) field.
355	EncodedText	data	N	Encoded (e.g. non-ASCII characters) representation of the Text field.

TradeCaptureReport (35=AE)

Sent by the exchange when a trade occurs from an automated liquidation or liquidation triggered position transfer.

Tag	Name	Type	Required	Description
828	TrdType	int	Y	Indicates the type of trade for the liquidation: 0 = Regular trade 3 = Transfer A regular trade occurs when the exchange’s liquidation engine automatically places orders in the open market. A transfer happens when the account gets closed out and the position goes to another participant that specializes in closing out liquidated positions.
830	TransferReason	string	Y	Used when TydType (828) = Transfer (3) to indicate the transfer context. Values include: LIQUIDATED ASSIGNED The LIQUIDATED value indicates a position getting transferred out of the portfolio. The ASSIGNED value indicates a position getting transferred into the portfolio (only applicable for LSP portfolios).
880	TrdMatchID	string	Y	A unique ID provided on trade messages that is affiliated with the match. The same ID is provided on both sides of the trade which can aid in self trade detection.
17	ExecID	string	Y	A globally unique 64bit monotonically increasing integer identifier specified by Coinbase International that identifies an event generated in the system. Please reference this identifier when speaking with Coinbase International Support.
820	TradeLinkID	string	Y	An identifier used to track all trades linked with the current phase of the liquidation process. Changes each time the portfolio gets flagged for handling by liquidation engine or if the portfolio gets transferred to liquidation specialists.
55	Symbol	string	Y	Symbol of the instrument being traded (e.g. BTC-USDC or BTC-PERP)
32	LastQty	decimal	C	Represents the total amount of the asset that traded.
31	LastPx	decimal	C	Price in the currency (tag 15) at which the LastQty (tag 32) amount traded.
60	TransactTime	utc timestamp	Y	The original time that this execution report occurred (useful for replays).
552	NoSides	int	Y	Marks the beginning of the repeating group for sides and will always be set to 1.
→ 54	Side	char	Y	Side of the trade, valid options: 1 = Buy 2 = Sell
→ 453	NoPartyIDs	int	C	Marks the beginning of the Parties repeating group component. Currently a max of 1 party is supported to specify the portfolio UUID. In the future additional parties may get added. Supported values: 1 = Specify portfolio UUID or client UUID If no party is specified the message applies to the default portfolio UUID affiliated with the API key.
→→ 448	PartyID	string	C	The unique identifier used to represent the party entry.
→→ 452	PartyRole	int	C	The type of party entry that the PartyID (448) value represents. Currently supports: 3 = Client ID 24 = Customer account The Customer Account (24) value indicates the PartyID value contains the UUID of the portfolio affiliated with the message. The Client ID (3) value indicates the PartyID value contains the UUID of a client managed by the broker (only applies to brokers).
→ 136	NoMiscFees	int	C	Provides information on the fees affiliated with the transaction. If specified and the value is > 0 it marks the beginning of a repeating group of the following 3 tags.
→→ 137	MiscFeeAmt	decimal	C	The total fee amount in units of MiscFeeCurr
→→ 138	MiscFeeCurr	string	C	The currency the fee amount is charged in (e.g. USDC)
→→ 139	MiscFeeType	string	C	Specifies the type of fee. Values may include: 4 = Exchange fees 7 = Other

PreFillRequest (35=F6)

Used to subscribe to the PreFills channel to receive PreFillReports for portfolios scoped to your API key.

Tag	Name	Type	Required	Description
22007	PreFillRequestID	string	Y	Client generated ID for this request

A successful subscription is indicated by a PreFillRequestSuccess(35=F7) message with the PreFillRequestID field set to the same PreFillRequestID supplied in the PreFillRequest. An unsuccessful subscription is indicated by a BusinessMessageReject with the BusinessRejectRefID field set to the PreFillRequestID supplied in the PreFillRequest.

PreFillRequestSuccess (35=F7)

Sent in response to a successful PreFillRequest (35=F6) subscription.

Tag	Name	Type	Required	Description
22007	PreFillRequestID	string	Y	Echoed from the PreFillRequest (35=F6) that triggered this response.

PreFillReport (35=F8)

Sent by the exchange on every fill on an order to PreFills subscribers. These are not aggregated across multiple fills. Each fill has a separate PreFillReport.

Tag	Name	Type	Required	Description
11	ClOrdID	string	Y	An identifier specified by the sender to uniquely identify other messages relating to this request.
880	TrdMatchID	string	Y	A unique ID provided on trade messages that is affiliated with the match. The same ID is provided on both sides of the trade which can aid in self trade detection.
37	OrderID	string	Y	A unique identifier assigned by the exchange for the order. Please use this ID when referencing the order for support.
453	NoPartyIDs	int	Y	Marks the beginning of the Parties repeating group component. Currently a max of 1 party is supported to specify the portfolio UUID. In the future additional parties may get added. Supported values: 1 = Specify portfolio UUID or client UUID If no party is specified the message applies to the default portfolio UUID affiliated with the API key.
→ 448	PartyID	string	Y	The unique identifier used to represent the party entry.
→ 452	PartyRole	int	Y	The type of party entry that the PartyID (448) value represents. Currently supports: 3 = Client ID 24 = Customer account The Customer Account (24) value indicates the PartyID value contains the UUID of the portfolio affiliated with the message. The Client ID (3) value indicates the PartyID value contains the UUID of a client managed by the broker (only applies to brokers).
55	Symbol	string	Y	Symbol of the instrument being traded (e.g. BTC-USDC or BTC-PERP)
54	Side	char	Y	Side of the order, valid options: 1 = Buy 2 = Sell
38	OrderQty	decimal	Y	The quantity specified on the order.
44	Price	decimal	N	Price specified on the order, if any.
32	LastQty	decimal	Y	Quantity bought or sold of this (last) fill.
31	LastPx	decimal	Y	Represents the price of this (last) fill.
60	TransactTime	utc timestamp	Y	The original time that this execution report occurred (useful for replays).
851	LastLiquidityInd	int	Y	Provided for trades (150=1 or 150=2). Provides context on how the order traded on the exchange for use in reference to trading fees. Values include: 1 = Added liquidity 2 = Removed liquidity

RFQ Request (35=AH)

Clients must send an RFQ Request message (35=AH) after each successful Logon message (35=A) for any session in which they are interested in receiving Quote Requests.

If the session submitting this request is not approved by Coinbase for participating in the RFQ program, this request is rejected with a Business Message Reject (j).If this request is acknowledged, and no symbol is specified, this session receives all Quote requests (all assets).

Tag	Name	Type	Required	Notes
644	RFQReqID	UUID	Y	Unique identifier for RFQ Request
146	NoRelatedSym	NumInGroup	N	Marks the beginning of the related symbols repeating group.
55	Symbol	String32	Y	Symbol to receive Quote Requests for (e.g. BTC-PERP). Required within NoRelatedSym group.

Quote Request (35=R)

Sent by the exchange to signal the start of the RFQ process. Coinbase sends a Quote Request to Liquidity Providers (LPs) on behalf of a customer looking to participate in an RFQ trade. LPs respond to a Quote Request with a Quote (S).

Tag	Name	Type	Required	Notes
131	QuoteReqID	UUID	Y	Unique identifier for RFQ
146	NoRelatedSym	NumInGroup	Y	Always 1
55	Symbol	String32	Y	Example: `BTC-PERP`
38	OrderQty	Float64	Y	The quantity the customer is looking to trade via RFQ
54	Side	Char	N	Side of the trade. Required only from brokers/takers, not sent to quoters/makers. 1 = Buy 2 = Sell
44	Price	Float64	N	Price from brokers/takers. Required only from brokers/takers, not sent to quoters/makers.
8090	QuoteRequestGoodForMillis	Int32	N	Time in milliseconds the quote request is good for.
303	QuoteRequestType	Int32	N	Type of quote request. 1 = Manual 2 = Automatic
62	ValidUntilTime	UTCTimestamp	N	The time by which quotes must be submitted for the RFQ. Only sent to quoters/makers.
126	ExpireTime	UTCTimestamp	N	The time by which the RFQ expires if there is no match. Sent to both makers/takers.
136	NoMiscFees	NumInGroup	Y	Always 1
137	MiscFeeAmt	Float64	Y	Fee as a percentage that Liquidity Providers are charged on a winning Quote.
139	MiscFeeType	Int32	Y	Always 4 = Exchange Fees
891	MiscFeeBasis	Int32	Y	Always 2 = Percentage
528	OrderCapacity	Char	Y	A = Agency (default) C = Corporate

Quote (35=S)

Quote (S) messages are submitted by Liquidity Providers (LP) in response to a Quote Request (R) in order to participate in the competitive RFQ auction. Quotes can be submitted as either a one-way or two-way quote, and must be received by the ValidUntilTime (62) specified in the Quote Request. Only one side is traded if the Liquidity Provider wins the RFQ.

Tag	Name	Type	Required	Notes
131	QuoteReqID	UUID	Y	Unique identifier for RFQ echoed from Quote Request
117	QuoteID	UUID	Y	Unique identifier for Quote specified by Liquidity Provider
55	Symbol	String32	Y	Example: `BTC-PERP`
132	BidPx	Float64	C	Required if submitting bid
133	OfferPx	Float64	C	Required if submitting offer
134	BidSize	String32	C	Required if submitting bid. Must match `OrderQty (38)` from Quote Request
135	OfferSize	String32	C	Required if submitting offer. Must match `OrderQty (38)` from Quote Request
453	NoPartyIDs	Int32	C	Marks the beginning of the Parties repeating group component. A max of 1 party is supported to specify the portfolio UUID. Supported values: 1 = Specify portfolio UUID If no party is specified, the message applies to the default portfolio UUID affiliated with the API key
448	PartyID	String32	C	The unique identifier used to represent the party entry or portfolio that this order generates from. When PartyRole(452)=24, set PartyID(448) equal to the UUID of the desired portfolio for this order.
452	PartyRole	Int32	C	The type of party entry that the PartyID (448) value represents. Currently supports: 24 = Customer account The Customer Account (24) value indicates the PartyID value contains the UUID of the portfolio affiliated with the message.

Quote Status Report (35=AI)

Sent by the exchange to Liquidity Providers with Quote statuses and expired Quote Requests.

If the Quote (S) is rejected b/c validation checks failed or it was sent too late, the response to the quoter is 297=5 (QuoteStatus = Rejected).
If the Quote (S) is accepted and eligible to participate in an RFQ auction, the response to the quoter is 297=16 (QuoteStatus = Active).
If the Quote (S) is accepted but not selected for execution, the response to the quoter is 297=17 (QuoteStatus = Canceled).
If the Quote (S) is accepted and selected for execution, the response to the quoter is 297=19 (QuoteStatus = Pending End Trade), followed by Execution Report - Filled.
If the Quote Request (r) is unmatched by ExpireTime (126) on the Quote Request, 297=7 (QuoteStatus = Expired) is broadcast to all LPs.

Tag	Name	Type	Required	Notes
131	QuoteReqID	UUID	Y	Unique identifier for RFQ echoed from Quote Request
117	QuoteID	UUID	Y	Unique identifier for Quote specified
55	Symbol	String32	Y	Example: `BTC-AVAX`
54	Side	Char	C	Buy: `54=1`, Sell: `54=2` Specified if QuoteStatus=Pending End Trade (`297=19`)
38	OrderQty	Float64	Y	Echoed from Quote Request
132	BidPx	Float64	C	Echoed from Quote
133	OfferPx	Float64	C	Echoed from Quote
134	BidSize	Float64	C	Echoed from Quote
135	OfferSize	Float64	C	Echoed from Quote
62	ValidUntilTime	UTCTimestamp	Y	Echoed from Quote Request
126	ExpireTime	UTCTimestamp	Y	Echoed from Quote Request
297	QuoteStatus	Int32	Y	`5` = Rejected: Quote failed validation checks or was sent too late `7` = Expired: Quote Request expired w/no match `16` = Active: Quote was acknowledged `17` = Canceled: Quote not selected b/c LP did not win auction or had insufficient funds `19` = Pending End Trade: Quote selected for execution
58	Text	String	C	Reason the Quote was rejected if QuoteStatus=5
17	ExecID	String	Y	A globally unique 64bit monotonically increasing integer identifier specified by Coinbase International that identifies an event generated in the system. Equivalent to ExecID in ExecutionReport (9)

QuoteResponse (35=AJ)

Sent by a customer (taker/broker) to accept a Quote and initiate a trade in an RFQ auction.

Tag	Name	Type	Required	Notes
693	QuoteRespID	UUID	Y	Unique identifier for this Quote Response.
694	QuoteRespType	Int32	Y	Type of Quote Response. Supported values: 1 = Hit/Lift
54	Side	Char	Y	Side of the trade. 1 = Buy, 2 = Sell
55	Symbol	String32	Y	Symbol of the instrument (e.g. BTC-PERP)

REST API

FIX API

WEBSOCKET FEED

NewOrderSingle (35=D)

OrderCancelReplaceRequest (35=G)

OrderCancelRequest (35=F)

OrderMassCancelRequest (35=q)

ExecutionReport (35=8)

OrderMassCancelReport (35=r)

OrderCancelReject (35=9)

BusinessMessageReject (35=j)

TradeCaptureReport (35=AE)

PreFillRequest (35=F6)

PreFillRequestSuccess (35=F7)

PreFillReport (35=F8)

RFQ Request (35=AH)

Quote Request (35=R)

Quote (35=S)

Quote Status Report (35=AI)

QuoteResponse (35=AJ)

​NewOrderSingle (35=D)

​OrderCancelReplaceRequest (35=G)

​OrderCancelRequest (35=F)

​OrderMassCancelRequest (35=q)

​ExecutionReport (35=8)

​OrderMassCancelReport (35=r)

​OrderCancelReject (35=9)

​BusinessMessageReject (35=j)

​TradeCaptureReport (35=AE)

​PreFillRequest (35=F6)

​PreFillRequestSuccess (35=F7)

​PreFillReport (35=F8)

​RFQ Request (35=AH)

​Quote Request (35=R)

​Quote (35=S)

​Quote Status Report (35=AI)

​QuoteResponse (35=AJ)

NewOrderSingle (35=D)

OrderCancelReplaceRequest (35=G)

OrderCancelRequest (35=F)

OrderMassCancelRequest (35=q)

ExecutionReport (35=8)

OrderMassCancelReport (35=r)

OrderCancelReject (35=9)

BusinessMessageReject (35=j)

TradeCaptureReport (35=AE)

PreFillRequest (35=F6)

PreFillRequestSuccess (35=F7)

PreFillReport (35=F8)

RFQ Request (35=AH)

Quote Request (35=R)

Quote (35=S)

Quote Status Report (35=AI)

QuoteResponse (35=AJ)