These codes indicate that the transaction failed, but it could apply successfully in the future, usually if some other hypothetical transaction applies first. They have numerical values in the range of -99 to -1. The exact code for any given error is subject to change, so don't rely on it.
Caution: Transactions with ter codes are not applied to the current ledger and cannot cause any changes to the Xahau state. However, a transaction that provisionally failed may still succeed or fail with a different code after being automatically reapplied. For more information, see Finality of Results and Reliable Transaction Submission.
terFUNDS_SPENT
DEPRECATED.
terINSUF_FEE_B
The account sending the transaction does not have enough XAH to pay the Fee specified in the transaction.
terLAST
Used internally only. This code should never be returned.
terNO_ACCOUNT
The address sending the transaction is not funded in the ledger (yet).
terNO_AUTH
The transaction would involve adding currency issued by an account with lsfRequireAuth enabled to a trust line that is not authorized. For example, you placed an offer to buy a currency you aren't authorized to hold.
terNO_LINE
Used internally only. This code should never be returned.
terNO_RIPPLE
Used internally only. This code should never be returned.
terOWNERS
The transaction requires that account sending it has a nonzero "owners count", so the transaction cannot succeed. For example, an account cannot enable the lsfRequireAuth flag if it has any trust lines or available offers.
terPRE_SEQ
The Sequence number of the current transaction is higher than the current sequence number of the account sending the transaction.
terPRE_TICKET
The transaction attempted to use a Ticket, but the specified TicketSequence number does not exist in the ledger. However, the Ticket could still be created by another transaction.
terRETRY
Unspecified retriable error.
terQUEUED
The transaction met the load-scaled transaction cost but did not meet the open ledger requirement, so the transaction has been queued for a future ledger.
terNO_HOOK
The transaction attempted to use a HookHash that doesn't exist on the ledger.