Cancel Order

important

• Provide either OrderID (37) or ClOrdID (11) to identify the order. If both are provided and they conflict, OrderID takes precedence.
• Only unfilled or partially filled orders can be cancelled.
• For Spot, use OrderFilter (30024) to distinguish between normal orders, TP/SL orders, and conditional orders.
• The final OrdStatus reflects the fill state at the time of cancellation: 4 (Canceled) if the order had no fills; F (PartiallyFilledCanceled) if it had partial fills.

Message Type

OrderCancelRequest — MsgType F

Request Fields

Tag	Field	Required	Type	Description
30010	Category	Y	String	Product type. Currently spot only
55	Symbol	Y	String	Symbol name, e.g. BTCUSDT (uppercase)
37	OrderID	N	String	Server-assigned order ID. At least one of OrderID or ClOrdID required
11	ClOrdID	N	String	Client order ID. At least one of OrderID or ClOrdID required
30024	OrderFilter	N	String	Spot only. Order (default); tpslOrder; StopOrder

Response

The server responds with an OrderCancelAck (XCA):

Tag	Field	Required	Description
37	OrderID	N	Server-assigned order ID. Absent when the cancel is rejected
11	ClOrdID	N	Echoes the request's ClOrdID if provided; otherwise echoes the original order's orderLinkId. Absent when the cancel is rejected — correlate rejects to requests by send order
150	ExecType	N	On acceptance: 6 (PendingCancel). Absent on rejection — an XCA lacking 150/39 but carrying 103/58 indicates a reject
39	OrdStatus	N	On acceptance: 6 (PendingCancel). Absent on rejection
103	OrdRejReason	N	Bybit internal error code (e.g. 170213). Present only when the cancel is rejected
58	Text	N	Human-readable reject reason. Present only when the cancel is rejected

info

OrderCancelAck is an acceptance confirmation (ExecType=6 PendingCancel) carrying only minimal state fields. The terminal cancel state (ExecType=4 Canceled or F PartiallyFilledCanceled) is delivered via a subsequent ExecutionReport (35=8) push with full order fields and 30040 CancelType. That push is only emitted in ResponseMode=1 (Everything).

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Request Example

8=FIX.4.4|9=105|35=F|49=FIX_CLIENT|56=BYBIT_FIX_SERVER|34=4|52=20240101-08:02:00.000|
30002=1704096120000|30001=5000|
30010=spot|55=BTCUSDT|37=1234567890123456|10=xxx|

Note: | represents SOH (0x01) in actual wire format.

PendingCancel Ack (ExecType=6)

• In OnlyAcks mode this is the only response.
• In Everything mode this arrives first, followed by an ExecutionReport (ExecType=4 Canceled or F PartiallyFilledCanceled) confirming the final state.
• Rate-limit headers (30005 TraceId, 30007 BapiLimit, 30008 BapiLimitStatus, 30009 BapiLimitResetTimestamp) appear on this ack only — subsequent state pushes omit them.
• If the request carried 30006 ReqId, this ack echoes it back; the subsequent state push does not carry 30006.

8=FIX.4.4|9=265|35=XCA|34=2|49=BYBIT_FIX_SERVER|52=20260824-10:13:20.321|56=FIX_CLIENT|
30005=56fc3d7313c3739e7ca1f36ddda54c65|30006=f15d0d96-a643-4b13-9186-1a9f3138752a|30007=20|30008=19|30009=1787566400320|
11=b52e9783-1a34-4264-aae3-bd5e6ca3f522|37=2288666911934089984|150=6|39=6|10=108|

Failed Response Example ACK (Rejected)

On rejection the XCA omits 150/39/37/11 — correlate rejects to requests by send order, and read 103 (internal error code) plus 58 (message) for the reason.

8=FIX.4.4|9=184|35=XCA|34=2|49=BYBIT_FIX_SERVER|52=20260820-06:28:36.328|56=FIX_CLIENT|
30005=2119c192fd5916fa6d5f065567a73293|30007=20|30008=19|30009=1787207316327|
58=Order does not exist.|103=170213|10=121|

Canceled Terminal Push Example (ExecType=4)

In Everything mode, after the PendingCancel Ack the server pushes the terminal state via an ExecutionReport (35=8) carrying full order fields, 30040 CancelType (e.g. CancelByUser), and an internal reason code in OrdRejReason (103) (e.g. EC_PerCancelRequest).

8=FIX.4.4|9=402|35=8|34=3|49=BYBIT_FIX_SERVER|52=20260824-10:13:20.325|56=FIX_CLIENT|
11=b52e9783-1a34-4264-aae3-bd5e6ca3f522|37=2288666911934089984|150=4|39=4|
30010=spot|55=BTCUSDT|54=1|40=2|38=0.001000|44=50000.0|59=1|30013=UNKNOWN|30014=N|
151=0.001|30041=50.0000000|14=0|30038=0.0000000|
60=20260824-10:13:20.320|30039=20260824-10:12:36.590|
103=EC_PerCancelRequest|30040=CancelByUser|
30018=None|30019=N|30046=77297.5|10=146|