Error Codes

Error codes in different ranges have different indications.

Code	TWS message	Additional notes
100	Max rate of messages per second has been exceeded.	The client application has exceeded the rate of 50 messages/second. The TWS will likely disconnect the client application after this message.
101	Max number of tickers has been reached.	”The current number of active market data subscriptions in TWS and the API altogether has been exceeded. This number is calculated based on a formula which is based on the equity, commissions, and quote booster packs in an account. Active lines can be checked in Tws using the Ctrl-Alt-= combination”
102	Duplicate ticker ID.	A market data request used a ticker ID which is already in use by an active request.
103	Duplicate order ID.	An order was placed with an order ID that is less than or equal to the order ID of a previous order from this client
104	Can’t modify a filled order.	An attempt was made to modify an order which has already been filled by the system.
105	Order being modified does not match original order.	An order was placed with an order ID of a currently open order but basic parameters differed (aside from quantity or price fields)
106	Can’t transmit order ID:	Order ID may not be transmitted. This is most often caused by an invalid order type or order formatting.
107	Cannot transmit incomplete order.	Order is missing a required field.
109	Price is out of the range defined by the Percentage setting at order defaults frame. The order will not be transmitted.	Price entered is outside the range of prices set in TWS or IB Gateway Order Precautionary Settings
110	The price does not conform to the minimum price variation for this contract.	An entered price field has more digits of precision than is allowed for this particular contract. Minimum increment information can be found on the IB Contracts and Securities Search page.
111	The TIF (Tif type) and the order type are incompatible.	The time in force specified cannot be used with this order type. Please refer to order tickets in TWS for allowable combinations.
113	The Tif option should be set to DAY for MOC and LOC orders.	Market-on-close or Limit-on-close orders should be sent with time in force set to ‘DAY’
114	Relative orders are valid for stocks only.	This error is deprecated.
115	”Relative orders for US stocks can only be submitted to SMART, SMART_ECN, INSTINET, or PRIMEX.”	This error is deprecated.
116	The order cannot be transmitted to a dead exchange.	Exchange field is invalid.
117	The block order size must be at least 50.	Caused by a block order submission using a quantity less than 50.
118	VWAP orders must be routed through the VWAP exchange.
119	Only VWAP orders may be placed on the VWAP exchange.	”When an order is routed to the VWAP exchange, the type of the order must be defined as ‘VWAP’.“
120	It is too late to place a VWAP order for today.	The cutoff has passed for the current day to place VWAP orders.
121	”Invalid BD flag for the order. Check “Destination” and “BD” flag.”	This error is deprecated.
122	No request tag has been found for order:	Caused when request encoding to socket improperly formed.
123	No record is available for conid:	The specified contract ID cannot be found. This error is deprecated.
124	No market rule is available for conid:	Returned in the event a market rule is not applied to a given contract identifier. May be caused when interacting with a non-tradeable instrument such as an Index.
125	Buy price must be the same as the best asking price.	Caused by a Buy order exceptionally above the Best Ask price. Please request market data to identify the NBO.
126	Sell price must be the same as the best bidding price.	Caused by a Sell order exceptionally below the Best Bid price. Please request market data to identify the NBB.
129	VWAP orders must be submitted at least three minutes before the start time.	The start time specified in the VWAP order is less than 3 minutes after when it is placed.
131	”The sweep-to-fill flag and display size are only valid for US stocks routed through SMART, and will be ignored.”	Sweep-to-fill used on an unsupported order type.
132	This order cannot be transmitted without a clearing account.	Order parameters do not include a valid clearing account.
133	Submit new order failed.	Failure in order submission. May be caused by order parameters or network connectivity.
134	Modify order failed.	Unable to modify an existing order. The order may have already been executed or cancelled. Please request open orders to verify current order status.
135	Can’t find order with ID =	An attempt was made to cancel an order not currently in the system.
136	This order cannot be cancelled.	”An attempt was made to cancel an order than cannot be cancelled, for instance because”
137	VWAP orders can only be cancelled up to three minutes before the start time.	VWAP order cancellation taking place within three minutes of submission.
138	Could not parse ticker request:	“Ticker symbol cannot be parsed, likely due to the inclusion of invalid symbols or content.”
139	Parsing error:	Error in command syntax generated parsing error.
140	The size value should be an integer:	The size field in the Order class has an invalid type.
141	The price value should be a double:	A price field in the Order type has an invalid type.
142	Institutional customer account does not have account info	Institutional account structure is not including account details in order submission.
143	Requested ID is not an integer number.	The IDs used in API requests must be integer values.
144	”Order size does not match total share allocation. To adjust the share allocation, right-click on the order and select Modify > Share Allocation “
145	Error in validating entry fields –	An error occurred with the syntax of a request field.
146	Invalid trigger method.	The trigger method specified for a method such as stop or trail stop was not one of the allowable methods.
147	The conditional contract info is incomplete.
148	”Conditional submission of orders is supported for Limit, Market, MidPrice, Relative and Snap order types only. Conditional cancelation of orders is supported for Limit and MidPrice order types only.”
151	This order cannot be transmitted without a user name.	In DDE the user name is a required field in the place order command.
152	”The “hidden” order attribute may not be specified for this order.”	The order in question cannot be placed as a hidden order. See- https://www.interactivebrokers.com/en/index.php?f=596
153	EFPs can only be limit orders.	This error is deprecated.
154	Orders cannot be transmitted for a halted security.	A security was halted for trading when an order was placed.
155	A sizeOp order must have a user name and account.	This error is deprecated.
156	A SizeOp order must go to IBSX	This error is deprecated.
157	An order can be EITHER Iceberg or Discretionary. Please remove either the Discretionary amount or the Display size.	In the Order class extended attributes the fields ‘Iceberg’ and ‘Discretionary’ cannot
158	You must specify an offset amount or a percent offset value.	TRAIL and TRAIL STOP orders must have an absolute offset amount or offset percentage specified.
159	The percent offset value must be between 0% and 100%.	A percent offset value was specified outside the allowable range of 0% and 100%.
160	The size value cannot be zero.	The size of an order must be a positive quantity.
161	Cancel attempted when order is not in a cancellable state. Order permId =	An attempt was made to cancel an order not active at the time.
162	Historical market data Service error message.
163	The price specified would violate the percentage constraint specified in the default order settings.	The order price entered is outside the allowable range specified in the Order Precautionary Settings of TWS or IB Gateway
164	There is no market data to check price percent violations.	No market data is available for the specified contract to determine whether the specified price is outside the price percent precautionary order setting.
165	Historical market Data Service query message.	”There was an issue with a historical data request, such is no such data in IB’s database. Note this message is not specific to the API.”
166	HMDS Expired Contract Violation.	Historical data is not available for the specified expired contract.
167	VWAP order time must be in the future.	The start time of a VWAP order has already passed.
168	Discretionary amount does not conform to the minimum price variation for this contract.	The discretionary field is specified with a number of degrees of precision higher than what is allowed for a specified contract.
200	No security definition has been found for the request.	”The specified contract does not match any in IB’s database, usually because of an incorrect or missing parameter.”
200	The contract description specified for is ambiguous	Ambiguity may occur when the contract definition provided is not unique.
200		”For some stocks that has the same Symbol, Currency and Exchange, you need to specify the IBApi.Contract.PrimaryExch attribute to avoid ambiguity. Please refer to a sample stock contract here.”
200		”For futures that has multiple multipliers for the same expiration, You need to specify the IBApi.Contract.Multiplier attribute to avoid ambiguity. Please refer to a sample futures contract here.”
201	Order rejected – Reason:	An attempted order was rejected by the IB servers. See Order Placement Considerations for additional information/considerations for these errors.
202	Order cancelled – Reason:	An active order on the IB server was cancelled. See Order Placement Considerations for additional information/considerations for these errors.
203	The security is not available or allowed for this account.	The specified security has a trading restriction with a specific account.
203	The contract description specified for %S is ambiguous; you must specify the currency.	The contract definition is incomplete. The currency must be included.
300	Can’t find EId with ticker Id:	An attempt was made to cancel market data for a ticker ID that was not associated with a current subscription. With the DDE API this occurs by clearing the spreadsheet cell.
301	Invalid ticker action:
302	Error parsing stop ticker string:
303	Invalid action:	An action field was specified that is not available for the account. For most accounts this is only BUY or SELL. Some institutional accounts also have the options SSHORT or SLONG available.
304	Invalid account value action:
305	”Request parsing error, the request has been ignored.”	The syntax of a DDE request is invalid.
306	Error processing DDE request:	An issue with a DDE request prevented it from processing.
307	Invalid request topic:	The ‘topic’ field in a DDE request is invalid.
308	Unable to create the ‘API’ page in TWS as the maximum number of pages already exists.	”An order placed from the API will automatically open a new page in classic TWS, however there are already the maximum number of pages open.”
309	”Max number (3) of market depth requests has been reached. Note: TWS currently limits users to a maximum of 3 distinct market depth requests. This same restriction applies to API clients, however API clients may make multiple market depth requests for the same security."	"Maximum market depth requests exceeded. Please see our Market Data Line Documentation for more information.”
310	Can’t find the subscribed market depth with tickerId:	An attempt was made to cancel market depth for a ticker not currently active.
311	The origin is invalid.	The origin field specified in the Order class is invalid.
312	The combo details are invalid.	Combination contract specified has invalid parameters.
313	The combo details for leg ” are invalid.	A combo leg was not defined correctly.
314	Security type ‘BAG’ requires combo leg details.	When specifying security type as ‘BAG’ make sure to also add combo legs with details.
315	Stock combo legs are restricted to SMART order routing.	Make sure to specify ‘SMART’ as an exchange when using stock combo contracts.
316	Market depth data has been HALTED. Please re-subscribe.	You need to re-subscribe to start receiving market depth data again.
317	Market depth data has been RESET. Please empty deep book contents before applying any new entries.
319	Invalid log level	Make sure that you are setting a log level to a value in range of 1 to 5.
320	Server error when reading an API client request.
321	Server error when validating an API client request.
322	Server error when processing an API client request.
323	Server error: cause – s
324	Server error when reading a DDE client request (missing information).	Make sure that you have specified all the needed information for your request.
325	Discretionary orders are not supported for this combination of exchange and order type.	Make sure that you are specifying a valid combination of exchange and order type for the discretionary order.
326	Unable to connect as the client id is already in use. Retry with a unique client id.	Another client application is already connected with the specified client id.
327	Only API connections with clientId set to 0 can set the auto bind TWS orders property.
328	Trailing stop orders can be attached to limit or stop-limit orders only.	Indicates attempt to attach trail stop to order which was not a limit or stop-limit.
329	Order modify failed. Cannot change to the new order type.	You are not allowed to modify initial order type to the specific order type you are using.
330	Only FA or STL customers can request managed accounts list.	Make sure that your account type is either FA or STL.
331	Internal error. FA or STL does not have any managed accounts.	You do not have any managed accounts.
332	The account codes for the order profile are invalid.	You need to check that the account codes you specified for your request are valid.
333	Invalid share allocation syntax.
334	Invalid Good Till Date order	Check you order settings.
335	Invalid delta: The delta must be between 0 and 100.
336	”The time or time zone is invalid. The correct format is hh:mm:ss xxx where xxx is an optionally specified time-zone. E.g.: 15:59:00 EST Note that there is a space between the time and the time zone. If no time zone is specified, local time is assumed.”
337	”The date, time, or time-zone entered is invalid. The correct format is yyyymmdd hh:mm:ss xxx where yyyymmdd and xxx are optional. E.g.: 20031126 15:59:00 ESTNote that there is a space between the date and time, and between the time and time-zone.”
338	Good After Time orders are currently disabled on this exchange.
339	Futures spread are no longer supported. Please use combos instead.
340	Invalid improvement amount for box auction strategy.
341	”Invalid delta. Valid values are from 1 to 100. You can set the delta from the “Pegged to Stock” section of the Order Ticket Panel, or by selecting Page/Layout from the main menu and adding the Delta column.”
342	Pegged order is not supported on this exchange.	You can review all order types and supported exchanges on the Order Types and Algos page.
343	”The date, time, or time-zone entered is invalid. The correct format is yyyymmdd hh:mm:ss xxx”
344	The account logged into is not a financial advisor account.	You are trying to perform an action that is only available for the financial advisor account.
345	Generic combo is not supported for FA advisor account.
346	Not an institutional account or an away clearing account.
347	Short sale slot value must be 1 (broker holds shares) or 2 (delivered from elsewhere).	Make sure that your slot value is either 1 or 2.
348	Order not a short sale – type must be SSHORT to specify short sale slot.	Make sure that the action you specified is ‘SSHORT’.
349	”Generic combo does not support “Good After” attribute.”
350	Minimum quantity is not supported for best combo order.
351	”The “Regular Trading Hours only” flag is not valid for this order.”
352	Short sale slot value of 2 (delivered from elsewhere) requires location.	You need to specify designatedLocation for your order.
353	Short sale slot value of 1 requires no location be specified.	You do not need to specify designatedLocation for your order.
354	Requested market data is not subscribed. Check API status by selecting the Account menu then under Management choose Market Data Subscription Manager and/or availability of delayed data.	You do not have live market data available in your account for the specified instruments. For further details please refer to our [Market Data Subscriptions page].
355	Order size does not conform to market rule.	Check order size parameters for the specified contract from the TWS Contract Details.
356	Smart-combo order does not support OCA group.	Remove OCA group from your order.
357	Your client version is out of date.
358	Smart combo child order not supported.
359	Combo order only supports reduce on fill without block(OCA).
360	No whatif check support for smart combo order.	Pre-trade commissions and margin information is not available for this type of order.
361	Invalid trigger price.
362	Invalid adjusted stop price.
363	Invalid adjusted stop limit price.
364	Invalid adjusted trailing amount.
365	No scanner subscription found for ticker id:	Scanner market data subscription request with this ticker id has either been cancelled or is not found.
366	No historical data query found for ticker id:	Historical market data request with this ticker id has either been cancelled or is not found.
367	Volatility type if set must be 1 or 2 for VOL orders. Do not set it for other order types.
368	Reference Price Type must be 1 or 2 for dynamic volatility management. Do not set it for non-VOL orders.
369	Volatility orders are only valid for US options.	Make sure that you are placing an order for US OPT contract.
370	”Dynamic Volatility orders must be SMART routed, or trade on a Price Improvement Exchange.”
371	VOL order requires positive floating point value for volatility. Do not set it for other order types.
372	Cannot set dynamic VOL attribute on non-VOL order.	Make sure that your order type is ‘VOL’.
373	Can only set stock range attribute on VOL or RELATIVE TO STOCK order.
374	”If both are set, the lower stock range attribute must be less than the upper stock range attribute.”
375	Stock range attributes cannot be negative.
376	The order is not eligible for continuous update. The option must trade on a cheap-to-reroute exchange.
377	Must specify valid delta hedge order aux. price.
378	Delta hedge order type requires delta hedge aux. price to be specified.	Make sure your order has delta attribute.
379	Delta hedge order type requires that no delta hedge aux. price be specified.	Make sure you do not specify aux. delta hedge price.
380	This order type is not allowed for delta hedge orders.	”Limit, Market or Relative orders are supported.”
381	Your DDE.dll needs to be upgraded.
382	The price specified violates the number of ticks constraint specified in the default order settings.
383	The size specified violates the size constraint specified in the default order settings.
384	Invalid DDE array request.
385	Duplicate ticker ID for API scanner subscription.	Make sure you are using a unique ticker ID for your new scanner subscription.
386	Duplicate ticker ID for API historical data query.	Make sure you are using a unique ticker ID for your new historical market data query.
387	Unsupported order type for this exchange and security type.	You can review all order types and supported exchanges on the Order Types and Algos page.
388	Order size is smaller than the minimum requirement.	Check order size parameters for the specified contract from the TWS Contract Details.
389	Supplied routed order ID is not unique.
390	Supplied routed order ID is invalid.
391	The time or time-zone entered is invalid. The correct format is hh:mm:ss xxx
392	Invalid order: contract expired.	You can not place an order for the expired contract.
393	Short sale slot may be specified for delta hedge orders only.
394	Invalid Process Time: must be integer number of milliseconds between 100 and 2000. Found:
395	”Due to system problems, orders with OCA groups are currently not being accepted.”	Check TWS bulletins for more information.
396	”Due to system problems, application is currently accepting only Market and Limit orders for this contract.”	Check TWS bulletins for more information.
397	”Due to system problems, application is currently accepting only Market and Limit orders for this contract.”
398	cannot be used as a condition trigger.	Please make sure that you specify a valid condition
399	Order message error
400	Algo order error.
401	Length restriction.
402	Conditions are not allowed for this contract.	Condition order type does not support for this contract
403	Invalid stop price.	The Stop Price you specified for the order is invalid for the contract
404	Shares for this order are not immediately available for short sale. The order will be held while we attempt to locate the shares.	You order is held by the TWS because you are trying to sell a contract but you do not have any long position and the market does not have short sale available. You order will be transmitted once there is short sale available on the market
405	The child order quantity should be equivalent to the parent order size.	This error is deprecated.
406	The currency is not allowed.	Please specify a valid currency
407	The symbol should contain valid non-unicode characters only.	Please check your contract Symbol
408	Invalid scale order increment.
409	Invalid scale order. You must specify order component size.	ScaleInitLevelSize specified is invalid
410	Invalid subsequent component size for scale order.	ScaleSubsLevelSize specified is invalid
411	”The “Outside Regular Trading Hours” flag is not valid for this order.”	Trading outside of regular trading hours is not available for this security
412	The contract is not available for trading.
413	What-if order should have the transmit flag set to true.	You need to set IBApi.Order.Transmit to TRUE
414	Snapshot market data subscription is not applicable to generic ticks.	You must leave Generic Tick List to be empty when requesting snapshot market data
415	Wait until previous RFQ finishes and try again.
416	RFQ is not applicable for the contract. Order ID:
417	Invalid initial component size for scale order.	ScaleInitLevelSize specified is invalid
418	Invalid scale order profit offset.	ScaleProfitOffset specified is invalid
419	Missing initial component size for scale order.	You need to specify the ScaleInitLevelSize
420	Invalid real-time query.	Information about pacing violations
421	Invalid route.	This error is deprecated.
422	The account and clearing attributes on this order may not be changed.
423	Cross order RFQ has been expired. THI committed size is no longer available. Please open order dialog and verify liquidity allocation.
424	FA Order requires allocation to be specified.	This error is deprecated.
425	FA Order requires per-account manual allocations because there is no common clearing instruction. Please use order dialog Adviser tab to enter the allocation.	This error is deprecated.
426	None of the accounts have enough shares.	You are not able to enter short position with Cash Account
427	Mutual Fund order requires monetary value to be specified.	This error is deprecated.
428	Mutual Fund Sell order requires shares to be specified.	This error is deprecated.
429	Delta neutral orders are only supported for combos (BAG security type).
430	”We are sorry, but fundamentals data for the security specified is not available.”
431	What to show field is missing or incorrect.	This error is deprecated.
432	Commission must not be negative.	This error is deprecated.
433	”Invalid “Restore size after taking profit” for multiple account allocation scale order.”
434	The order size cannot be zero.
435	You must specify an account.	The function you invoked only works on a single account
436	”You must specify an allocation (either a single account, group, or profile)."	"When you try to place an order with a Financial Advisor account, you must specify the order to be routed to either a single account, a group, or a profile.”
437	Order can have only one flag Outside RTH or Allow PreOpen.	This error is deprecated.
438	The application is now locked.	This error is deprecated.
439	Order processing failed. Algorithm definition not found.	Please double check your specification for IBApi.Order.AlgoStrategy and IBApi.Order.AlgoParams
440	Order modify failed. Algorithm cannot be modified.
441	Algo attributes validation failed:	Please double check your specification for IBApi.Order.AlgoStrategy and IBApi.Order.AlgoParams
442	Specified algorithm is not allowed for this order.
443	Order processing failed. Unknown algo attribute.	Specification for IBApi.Order.AlgoParams is incorrect
444	Volatility Combo order is not yet acknowledged. Cannot submit changes at this time.	The order is not in a state that is able to be modified
445	The RFQ for this order is no longer valid.
446	Missing scale order profit offset.	ScaleProfitOffset is not properly specified
447	Missing scale price adjustment amount or interval.	ScalePriceAdjustValue or ScalePriceAdjustInterval is not specified properly
448	Invalid scale price adjustment interval.	ScalePriceAdjustInterval specified is invalid
449	Unexpected scale price adjustment amount or interval.	ScalePriceAdjustValue or ScalePriceAdjustInterval specified is invalid
481	Order size reduced.
501	Already Connected.	Your client application is already connected to the TWS.
502	”Couldn’t connect to TWS. Confirm that “Enable ActiveX and Socket Clients” is enabled and connection port is the same as “Socket Port” on the TWS “Edit->Global Configuration…->API->Settings” menu.”	When you receive this error message it is either because you have not enabled API connectivity in the TWS and/or you are trying to connect on the wrong port. Refer to the TWS’ API Settings as explained in the error message. See also Connectivity
503	The TWS is out of date and must be upgraded.	Indicates TWS or IBG is too old for use with the current API version. Can also be triggered if the TWS version does not support a specific API function.
504	Not connected.	You are trying to perform a request without properly connecting and/or after connection to the TWS has been broken probably due to an unhandled exception within your client application.
505	Fatal Error: Unknown message id.
506	Unsupported Version (not used in Python client)
507	Bad Message Length (Java-only)	“Indicates EOF exception was caught while reading from the socket. This can occur if there is an attempt to connect to TWS with a client ID that is already in use, or if TWS is locked, closes, or breaks the connection. It should be handled by the client application and used to indicate that the socket connection is not valid.”
508	Bad Message
509	Exception caught while reading socket	(not used in Python C# client)
510	Request Market Data Sending Error –
511	Cancel Market Data Sending Error –
512	Order Sending Error –
513	Account Update Request Sending Error –
514	Request For Executions Sending Error –
515	Cancel Order Sending Error –
516	Request Open Order Sending Error –
517	Unknown contract. Verify the contract details supplied. (not used in Python C# client)
518	Request Contract Data Sending Error –
519	Request Market Depth Sending Error –
520	Failed to create socket (not used in C# client)
521	Set Server Log Level Sending Error –
522	FA Information Request Sending Error –
523	FA Information Replace Sending Error –
524	Request Scanner Subscription Sending Error –
525	Cancel Scanner Subscription Sending Error –
526	Request Scanner Parameter Sending Error –
527	Request Historical Data Sending Error –
528	Request Historical Data Sending Error –
529	Request Real-time Bar Data Sending Error –
530	Cancel Real-time Bar Data Sending Error –
531	Request Current Time Sending Error –
532	Request Fundamental Data Sending Error –
533	Cancel Fundamental Data Sending Error –
534	Request Calculate Implied Volatility Sending Error –
535	Request Calculate Option Price Sending Error –
536	Cancel Calculate Implied Volatility Sending Error –
537	Cancel Calculate Option Price Sending Error –
538	Request Global Cancel Sending Error –
539	Request Market Data Type Sending Error –
540	Request Positions Sending Error –
541	Cancel Positions Sending Error –
542	Request Account Data Sending Error –
543	Cancel Account Data Sending Error –
544	Verify Request Sending Error –
545	Verify Message Sending Error –
546	Query Display Groups Sending Error –
547	Subscribe To Group Events Sending Error –
548	Update Display Group Sending Error –
549	Unsubscribe From Group Events Sending Error –
550	Start API Sending Error –
551	Verify And Auth Request Sending Error –
552	Verify And Auth Message Sending Error –
553	Request Positions Multi Sending Error –
554	Cancel Positions Multi Sending Error –
555	Request Account Updates Multi Sending Error –
556	Cancel Account Updates Multi Sending Error –
557	Request Security Definition Option Params Sending Error –
558	Request Soft Dollar Tiers Sending Error –
559	Request Family Codes Sending Error –
560	Request Matching Symbols Sending Error –
561	Request Market Depth Exchanges Sending Error –
562	Request Smart Components Sending Error –
563	Request News Providers Sending Error –
564	Request News Article Sending Error –
565	Request Historical News Sending Error –
566	Request Head Time Stamp Sending Error –
567	Request Histogram Data Sending Error –
568	Cancel Request Histogram Data Sending Error –
569	Cancel Head Time Stamp Sending Error –
570	Request Market Rule Sending Error –
571	Request PnL Sending Error –
572	Cancel PnL Sending Error –
573	Request PnL Single Error –
574	Cancel PnL Single Sending Error –
575	Request Historical Ticks Error –
576	Request Tick-By-Tick Data Sending Error –
577	Cancel Tick-By-Tick Data Sending Error –
578	Request Completed Orders Sending Error –
579	Invalid symbol in string –
580	Request WSH Meta Data Sending Error –
581	Cancel WSH Meta Data Sending Error –
582	Request WSH Event Data Sending Error –
583	Cancel WSH Event Data Sending Error –
584	Request User Info Sending Error –
585	”FA Profile is not supported anymore, use FA Group instead"	"Indicates FaDataTypeEnum.PROFILES is deprecated. Use FaDataTypeEnum.GROUPS or 1 instead”
586	Failed to read message because not connected (Used only in Java client)
587	Request Current Time In Millis Sending Error –
588	Error encoding protobuf	(Used only in Java client)
589	Cancel Market Depth Sending Error –
2100	New account data requested from TWS. API client has been unsubscribed from account data.	”The TWS only allows one IBApi.EClient.reqAccountUpdates request at a time. If the client application attempts to subscribe to a second account without canceling the previous subscription, the new request will override the old one and the TWS will send this message notifying so.”
2101	Unable to subscribe to account as the following clients are subscribed to a different account.	”If a client application invokes IBApi.EClient.reqAccountUpdates when there is an active subscription started by a different client, the TWS will reject the new subscription request with this message.”
2102	Unable to modify this order as it is still being processed.	”If you attempt to modify an order before it gets processed by the system, the modification will be rejected. Wait until the order has been fully processed before modifying it. See Placing Orders for further details.”
2103	A market data farm is disconnected.	”Indicates a connectivity problem to an IB server. Outside of the nightly IB server reset, this typically indicates an underlying ISP connectivity issue.”
2104	Market data farm connection is OK	”A notification that connection to the market data server is ok. This is a notification and not a true error condition, and is expected on first establishing connection.”
2105	A historical data farm is disconnected.	”Indicates a connectivity problem to an IB server. Outside of the nightly IB server reset, this typically indicates an underlying ISP connectivity issue.”
2106	A historical data farm is connected.	”A notification that connection to the market data server is ok. This is a notification and not a true error condition, and is expected on first establishing connection.”
2107	A historical data farm connection has become inactive but should be available upon demand.	”Whenever a connection to the historical data farm is not being used because there is not an active historical data request, the connection will go inactive in IB Gateway. This does not indicate any connectivity issue or problem with IB Gateway. As soon as a historical data request is made the status will change back to active.”
2108	A market data farm connection has become inactive but should be available upon demand.	”Whenever a connection to our data farms is not needed, it will become dormant. There is nothing abnormal nor wrong with your client application nor with the TWS. You can safely ignore this message.”
2109	”Order Event Warning: Attribute “Outside Regular Trading Hours” is ignored based on the order type and destination. PlaceOrder is now processed.”	Indicates the outsideRth flag was set for an order for which there is not a regular vs outside regular trading hour distinction
2110	Connectivity between TWS and server is broken. It will be restored automatically.	Indicates a connectivity problem between TWS or IBG and the IB server. This will usually only occur during the IB nightly server reset; cases at other times indicate a problem in the local ISP connectivity.
2111	”The Start and/or End Time for algo order BUY/SELL a contract was adjusted to use the next trading date. To modify this setting, use the Auto-adjust algo order date item on the Orders configuration page”	Please go to TWS Global Configuration – “Orders” – “Settings” to correct the configuration.
2119	Market data farm is connecting.
2130	Warning: products are trading on the basis of currency price with factor.
2137	Cross Side Warning	”This warning message occurs in TWS version 955 and higher. It occurs when an order will change the position in an account from long to short or from short to long. To bypass the warning, a new feature has been added to IB Gateway 956 (or higher) and TWS 957 (or higher) so that once can go to Global Configuration > Messages and disable the “Cross Side Warning”.“
2152	Market depth smart depth exchanges.
2158	Sec-def data farm connection is OK	”A notification that connection to the Security definition data server is ok. This is a notification and not a true error condition, and is expected on first establishing connection.”
2168	Etrade Only Not Supported Warning	The EtradeOnly IBApi.Order attribute is no longer supported. Error received with TWS versions 983+. Remove attribute to place order.
2169	Firm Quote Only Not Supported Warning	The firmQuoteOnly IBApi.Order attribute is no longer supported. Error received with TWS versions 983+. Remove attribute to place order.
10000	Cross currency combo error.
10001	Cross currency vol error.
10002	Invalid non-guaranteed legs.
10003	IBSX not allowed.
10005	Read-only models.
10006	Missing parent order.	The parent order ID specified cannot be found. In some cases this can occur with bracket orders if the child order is placed immediately after the parent order; a brief pause of 50 ms or less will be necessary before the child order is transmitted to TWS/IBG.
10007	Invalid hedge type.
10008	Invalid beta value.
10009	Invalid hedge ratio.
10010	Invalid delta hedge order.
10011	Currency is not supported for Smart combo.
10012	Invalid allocation percentage	FaPercentage specified is not valid
10013	Smart routing API error (Smart routing opt-out required).
10014	PctChange limits.	This error is deprecated
10015	Trading is not allowed in the API.
10016	Contract is not visible.	This error is deprecated
10017	Contracts are not visible.	This error is deprecated
10018	Orders use EV warning.
10019	Trades use EV warning.
10020	Display size should be smaller than order size./td>	The display size should be smaller than the total quantity
10021	Invalid leg2 to Mkt Offset API.	This error is deprecated
10022	Invalid Leg Prio API.	This error is deprecated
10023	Invalid combo display size API.	This error is deprecated
10024	Invalid don’t start next legin API.	This error is deprecated
10025	Invalid leg2 to Mkt time1 API.	This error is deprecated
10026	Invalid leg2 to Mkt time2 API.	This error is deprecated
10027	Invalid combo routing tag API.	This error is deprecated
10089	API data requires subscription	The market data subscribed with the user does not extend support for API use. See TWS vs API Data for more details.
10090	Part of requested market data is not subscribed.	Indicates that some tick types requested require additional market data subscriptions not held in the account. This commonly occurs for instance if a user has options subscriptions but not the underlying stock so the system cannot calculate the real time Greek values (other default ticks will be returned). Or alternatively, if generic tick types are specified in a market data request without the associated subscriptions.
10091	Part of requested market data requires additional subscription for API	The market data subscribed with the user does not extend support for API use. See TWS vs API Data for more details.
10147	Order to be canceled was not found.
10148	”OrderId that needs to be cancelled can not be cancelled, state:“	An attempt was made to cancel an order that had already been filled by the system.
10186	Requested market data is not subscribed. Delayed market data is not enabled	See Market Data Types on how to enable delayed data.
10187	Failed to request historical ticks:No market data permissions
10189	Failed to request tick-by-tick data. Invalid Real-time Query	”Trading TWS session is connected from a different IP address. Or, No market data permissions”
10197	No market data during competing session	”Indicates that the user is logged into the paper account and live account simultaneously trying to request live market data using both the accounts. In such a scenario preference would be given to the live account, for more details please refer: https://ibkr.info/node/1719”
10225	”Bust event occurred, current subscription is deactivated. Please resubscribe real-time bars immediately”
10230	”You have unsaved FA changes. Please retry ‘request FA’ operation later, when ‘replace FA’ operation is complete”	There are pending Financial Advisor configuration changes. See Financial Advisors
10231	The following Groups and/or Profiles contain invalid accounts:	“If the account(s) inside Groups or Profiles is/are incorrect in xml-formatted configuration string of replaceFA request, then the error shows list of such Groups and/or Profiles.”
10233	Defaults were inherited from CASH preset during the creation of this order.
10234	The Decision Maker field is required and not set for this order (non-desktop).
10235	The Decision Maker field is required and not set for this order (ibbot).
10236	Child has to be AON if parent order is AON
10237	All or None ticket can route entire unfilled size only
10238	Some error occured during communication with Advisor Setup web-app
10239	This order will affect one or more accounts that are flagged because they do not fit the required risk score criteria prescribed by the group/profile/model allocation.
10240	You must enter a valid Price Cap.
10241	Order Quantity is expressed in monetary terms. Modification is not supported via API. Please use desktop version to revise this order.
10242	Fractional-sized order cannot be modified via API. Please use desktop version to revise this order.
10243	Fractional-sized order cannot be placed via API. Please use desktop version to place this order.
10244	Cash Quantity cannot be used for this order
10245	This financial instrument does not support fractional shares trading
10246	This order doesn’t support fractional shares trading
10247	Only IB SmartRouting supports fractional shares
10248	doesn’t have permission to trade fractional shares
10249	”=""> order doesn’t support fractional shares”
10250	The size does not conform to the minimum variation of for this contract
10251	Fractional shares are not supported for allocation orders
10252	This non-close-position order doesn’t support fractional shares trading
10253	Clear Away orders are not supported for multi-leg combo with attached hedge.
10254	Invalid Order: bond expired
10268	The ‘EtradeOnly’ order attribute is not supported	The EtradeOnly IBApi.Order attribute is no longer supported. Error received with TWS versions 983+
10269	The ‘firmQuoteOnly’ order attribute is not supported	The firmQuoteOnly IBApi.Order attribute is no longer supported. Error received with TWS versions 983+
10270	The ‘nbboPriceCap’ order attribute is not supported	The nbboPriceCap IBApi.Order attribute is no longer supported. Error received with TWS versions 983+
10276	News feed is not allowed	The API client is not permissioned for receiving WSH news feed.
10277	News feed permissions required	The API client is not subscribed to receive WSH news feed
10278	Duplicate WSH metadata request	A request is already pending for the same API client.
10279	Failed request WSH metadata	A general error occurred when processing the request.
10280	Failed cancel WSH metadata	A general error occurred when processing the request.
10281	Duplicate WSH event data request	A request is already pending for the same API client.
10282	WSH metadata not requested	WSH metadata was not requested by first sending a reqWshMetaData request.
10283	Fail request WSH event data	A general error occurred when processing the request.
10284	Fail cancel WSH event data	A general error occurred when processing the request.
10285	Your API version does not support fractional sizing rules. Please upgrade to at least version 163
10286	%s field cannot contain more than %s decimals.
10287	Cryptocurrency order is not confirmed
10288	Market order confirmation dialog title for cryptocurrencies
10289	You must set Cash Quantity for this order
10290	This order only supports CashQty trading.
10291	Orders to harvest Capital Loss must use the DAY time-in-force.
10292	Order type/action restriction
10293	Cryptocurrency Cash Quantity order cannot specify size
10294	Cash quantity set on the order does not match total monetary amount of the Group.
10295	Orders to harvest Capital Loss must use the DAY time-in-force.
10295	Only daily resolution supported for Schedule requests
10296	”The Smart Routing features “Seek Price Improvement” (aka “Route to Dark Pools”) and “Do not route to Dark Pools” are mutually exclusive. Enabling both will result in the order being rejected. Please choose only one of these commands.%s”
10297	Not Held attribute is invalid for this order.
10298	Cannot trade an instrument with currency different from model currency
10299	Expected what to show is %s	please use that instead of %s.
10300	%s: The date	time
10301	%s: The date	time
10302	Min trade trade quantity is not allowed for this order
10303	Invalid min trade quantity value (%s). It must be a positive integer	not exceeding the total order size.
10304	Minimum Competing Size value must be non-negative.
10305	Compete against best bid or offer Offset dollar value must be positive	multiple of a cent.
10306	Mid offsets are not allowed
10307	Invalid MidOffsetAtWhole and/or MidOffsetAtHalf attribute values
10308	Revision to Post to ATS value presence is not allowed.
10309	Invalid WSH event data request.
10310	The Solicited field should be used for orders initiated or recommended by the broker or advisor that were approved by the client by phone or email.
10311	This order will be directly routed to %s. Direct routed orders may result in higher trade fees.
10312	The order type Volatility is currently not supported for this combination of financial instrument and account type
10314	%s: The date	time
10315	%s: The time entered is invalid. The correct format is hh:mm:ss. E.g.: 15:00:00 in UTC. No date should be specified	current date is assumed.
10316	Trigger Outside RTH was deprecated. Please upgrade your API Client software to submit order with Outside RTH attribute instead.
10317	The Cash Quantity size for the below contracts does not conform to minimum variation of %s
10318	This order doesn’t support fractional quantity trading
10319	Placing orders for Municipal Bonds via API is currently disabled
10321	Placing orders for Municipal Bonds is currently disabled for attached and OCA orders.
10322	This API request for All is not supported for Dynamic Account Addition
10324	Invalid parameters for OCA group for exchange %s. Overfill Protection is implied.
10325	OCA group is not supported
10326	OCA group revision is not allowed
10327	OCA group type revision is not allowed
10328	Connection lost	order data could not be resolved
10329	This order will be directly routed to %s.
10330	The expiry date/time format is invalid.\nThe correct format is yyyyMMdd HH:mm:ss (operator or instrument time zone) or yyyyMMdd-HH:mm:ss (UTC time zone).
10331	Any stop warning
10332	Cryptocurrency volatility warning
10333	Option Exercise at-the-money warning
10334	Confirm Omnibus Order Account
10335	”Order presets cannot be applied as configured. Please review %s Settings and Rapid Order Entry Configuration for consistency.”
10336	Per-leg executing broker configuration is not supported
10337	Misc options key=%s is invalid in %s request. Valid keys are: %s
10338	Misc options value=%s is invalid for key=%s in %s request. Valid values are: %s
10339	Setting end date/time for continuous future security type is not allowed
10340	The following order attribute is not supported: %s
10341	Parent order id cannot be modified
10342	The ‘ImbalanceOnly’ order attribute may not be specified for this order.
10343	Selling Event Contracts is neither allowed directly nor as an attached profit taker.
10344	Price value must be between 0.02 and 0.99 with a maximum of two decimal places.
10345	You cannot trade a %s
10346	Market data for %s cannot be delivered because ticker for the same financial instrument is displayed on %s
10347	This security has limited liquidity. If you choose to trade this security	there is a heightened risk that you may not be able to close your position at the time you wish
WinError 10038	An operation was attempted on something that is not a socket.	This indicates socket connection was closed improperly.