In certain circumstances an error message may get returned by Betfair when submitting your bet.

If this happens the error message will be displayed in the Bet Ref column.

Possible error messages are described below:-

Error	Description
API_ERROR INTERNAL_ERROR UNKNOWN_ERROR	General API error, unlikely but possible. It would probably mean there was a problem with the API and not Betting Assistant. It could also mean the request was not formed properly which would be a problem with BA that needs looking at.
INVALID_PERSISTENCE	You have used the -SP or -IP trigger modifier, but the market will not be turning in play.
BETWEEN_1_AND_60_BETS_REQUIRED	Number of Bet Placement less than 1 or greater than 60. Typically you will see this if you populate the trigger column but leave the odds column blank or the odds column contains text instead of a numeric value.
DIFFERING_MARKETS	All bets not all for the same market. Should not be possible with Betting Assistant. Please report this to admin@gruss-software.co.uk if you see this error message.
EVENT_CLOSED	The market has closed. If you weren't expecting this then the event may have been abandoned. If the event wasn't abandoned then your trigger fired after Betfair had closed and settled the event.
EVENT_INACTIVE	Market is not active.
EVENT_SUSPENDED	Market is suspended. If you are monitoring for the market going in play and aiming to place the bet as soon as this is detected it is possible you will get this error as there is an outstanding issue with the API where the market can be reported as in play and not suspended, but is suspended again on a subsequent refresh. You should place your bet again.
VACANT_TRAP	The selected trap is vacant.
BBM_DAEMON_NOT_AVAILABLE	The exchange encountered a critical error and was not able to match your bet. Your bet was not placed.
ACCOUNT_CLOSED	Account is closed - please contact the Betfair Helpdesk.
ACCOUNT_EXCLUDED	The account has been locked due to self-exclusion.
ACCOUNT_LOCKED	Account is locked - please contact the Betfair Helpdesk.
ACCOUNT_SUSPENDED	Account has been suspended. One reason you might receive this message is that you have attempted to place a bet on the Australian exchange server but your Australian wallet is suspended because Betfair have not yet received confirmation of your name and address.
AUTHORISATION_PENDING	Account is pending authorisation. If the PlaceBetsResultEnum is also CANNOT_ACCEPT_BET, this means that the market is operating under the Tasmanian Gaming Commission rules and the account holder’s identity has not yet been verified.
SITE_UPGRADE	Site is currently being upgraded.
EXPOSURE_CALCULATION_IN_PROGRESS	The bet was not placed because the system is calculating your exposure. This error is most likely to occur when the account is close to the exposure limit and you are placing multiple bets in a short space of time.
EXPOSURE_OR_AVAILABLE_BALANCE_EXCEEDED	Account Exceeded Exposure Limit or Available to Bet Balance.
INSUFFICIENT_BALANCE	Insufficient available money in the account.
SELECTION_REMOVED	The runner has been removed from the event.
LOSS_LIMIT_EXCEEDED	The potential loss for the bet exceeds the loss limit for the account (as set in your profile on the Betfair website).
STAKE_TOO_SMALL	The stake is too small at the odds being requested because of Betfair's new rules relating to minimum liability.