The following are descriptions for error messages that may be received when trading derivatives on Kraken Pro.

Market is suspended; trading is unavailable.

An inactive derivatives market was specified in the order submission request.

Price is smaller or equal to zero, price exceeds the max price set for the contract, or price is not a multiple of the tick size.

Quantity decimals are greater than the contract value trade precision, notional size exceeds the order max volume of 20,000,000 USD, or quantity specified is less than zero.

Notional size is lower than the small order threshold of 0.01 USD.

Incremental initial margin is greater than the usable margin.

Incremental initial margin = new initial margin with orders - initial margin with orders + effective fee - min(PNL after execution, 0)

Max maintenance margin impact = max(maintenance margin after execution - maintenance margin, 0)

Usable margin = if(max maintenance margin impact = 0, margin equity - initial margin with orders, margin equity - maintenance margin)

Order would fill at a worse price than the mark price, causing the portfolio value to fall below the maintenance margin and trigger a liquidation.

Client order ID specified currently being used in an open order.

Client order ID specified exceeds the max character length of 100.

The sum of the max position size, existing orders size, and order quantity would exceed the max position size set for the contract.

Taker order would fill 20% away from the mark price.

Taker order would cause the contract price to deviate from the index in the direction specified as the price dislocation direction for that contract.

The requested changes would not cause any modifications to the order.

The order ID could not be found in the account open orders.

The order ID could not be found in the account open orders.

The order is not a trigger order and the edit order request contains a stop price.

The order or the market is set to post-only and the order would be filled upon placement. If the market is in post-only orders cannot cross the mark price.

The immediate-or-cancel order would not execute immediately.

The taker order would match with a maker order belonging to the same account.

The account or contract is set to reduce-only, the current position size is equal to zero, the position is long and the order is a reduce-only buy, or the position is short and the order is a reduce-only sell.

The order would be rejected after it is executed. Unused.

The market is set to post-only mode. Unused. Refer to POST_WOULD_EXECUTE.

The max number of open orders and order triggers would exceed 20,000.

The incremental initial margin would go below the margin schedule threshold.

Client order ID is not ASCII printable.

The order request attempts to edit the trigger price of a trailing stop order.

The order request attempts to edit the limit price of a trailing stop order.

The max number of trailing stop orders would exceed 30.

Trailing stop percent deviation has more than 2 decimals.

Trailing stop quote deviation is not a multiple of the tick size.

Trailing stop max deviation is above maximum allowed trailing stop deviation set at 50%.

Trailing stop max deviation is below minimum allowed trailing stop deviation set at 0.1%

The percentage difference between the trigger price and market price is less than the minimum allowed trailing stop deviation set at 0.1%.

The trigger signal reference price is not available.

The taker order submitted from a subaccount would match with a maker order from the master account.

The taker order submitted from a subaccount would match with a maker order from another subaccount of the same master.

The taker order submitted from the master account would match with a maker order from a subaccount.

The account ID could not be found.

The contract was repeated while checking margin for multiple orders.

Position UUID not found.

The account has too many positions in the same contract.

The leverage setting is invalid.

The processBefore time is less than the server time.

A closing order failed the margin check. See INSUFFICIENT_MARGIN.

No orders in the opposing side of the book to match with the market order.

Limit price and a limit price offset is provided for a trigger order.

Limit price offset is not specified with a value and a unit.

Limit price offset is not a number or is invalid.

Limit price offset unit is neither a percent nor quote currency.

Limit price offset value in quote currency is not a multiple of the tick size.

Limit price offset percent value has more than 2 decimal places.

Limit price offset is above the limit price offset maximum value of 75%.

Limit price offset is below the limit price offset minimum value of 0%.

Requested order group type is not supported.

The order group was not found while attempting to attach the order.

The requested order is both the parent and member of the group.

The requested order is already a member of the order group.

The requested order cannot be attached to the order group.

Partially filled orders cannot be attached to the order group.

The requested order group is empty.

The order group has too many orders.

The order group would reduce the position size.

The child of the order group is in the same direction as the parent.

The child of the order group is not reduce-only.

The child of the order group has no limit price specified.

The net delta of the option portfolio after execution would exceed the max permissible net delta set at 1,000,000,000.

The account is not allowed to trade on the contract.