Errors API Reference
When invoking the ccipSend function, it is possible to encounter various errors. These might be thrown either by the CCIP router or by one of the downstream contracts called by the CCIP router. Below is a compiled list of potential errors you might encounter. Referencing this list will enable you to capture and handle these exceptions gracefully.
Router
| Error | Parameters | Error Selector | Description |
|---|---|---|---|
| UnsupportedDestinationChain | uint64 destChainSelector | 0xae236d9c | Thrown when the destination chain is not supported. |
| InsufficientFeeTokenAmount | - | 0x07da6ee6 | Thrown when the CCIP fees are paid with native tokens, but not enough is sent with the transaction. |
| InvalidMsgValue | - | 0x1841b4e1 | Thrown when the CCIP fees are not paid in native tokens, but |
Onramp
| Error | Parameters | Error Selector | Description |
|---|---|---|---|
| CannotSendZeroTokens | - | 0x5cf04449 | Thrown when the user tries to send a zero amount of tokens. |
| InvalidAddress | bytes encodedAddress | 0x370d875f | Thrown when the receiver address is invalid. |
| InvalidChainSelector | uint64 chainSelector | 0xd9a9cd68 | Thrown when an invalid destination chain selector is used. |
| InvalidExtraArgsTag | - | 0x5247fdce | Thrown when an invalid extra arguments tag is used. |
| MaxFeeBalanceReached | - | 0xe5c7a491 | Thrown when the onRamp has reached its maximum fee storage capacity. If it is full, it cannot process new transactions. |
| MessageGasLimitTooHigh | - | 0x4c4fc93a | Thrown when the gas limit is too high. |
| MessageTooLarge | uint256 maxSize uint256 actualSize | 0x86933789 | Thrown when the message size exceeds the maximum allowed size. |
| MustBeCalledByRouter | - | 0x1c0a3529 | This error should never be thrown as the router always makes the call. |
| NotAFeeToken | address token | 0xa7499d20 | Thrown when an unsupported fee token is used. |
| RouterMustSetOriginalSender | - | 0xa4ec7479 | This error should never be thrown as the router always sets the sender. |
| SenderNotAllowed | address sender | 0xd0d25976 | Thrown when the sender is not allowlisted. |
| UnsupportedNumberOfTokens | - | 0x4c056b6a | Thrown when too many tokens are involved in the transfer. |
| UnsupportedToken | IERC20 token | 0xbf16aab6 | Thrown when an unsupported transfer token is used. |
RateLimiter
| Error | Parameters | Error Selector | Description |
|---|---|---|---|
| AggregateValueMaxCapacityExceeded | uint256 capacity uint256 requested | 0xf94ebcd1 | Thrown when the user requests to transfer more value than the capacity of the aggregate rate limit bucket. |
| AggregateValueRateLimitReached | uint256 minWaitInSeconds uint256 available | 0x15279c08 | Thrown when the user requests to transfer more value than currently available in the bucket. The user might have to wait for at least |
| BucketOverfilled | - | 0x9725942a | This error should never be thrown as it indicates an invalid bucket state. |
| PriceNotFoundForToken | address token | 0x9a655f7b | Thrown when a price cannot be found for a specific token. |
| TokenMaxCapacityExceeded | uint256 capacity uint256 requested address tokenAddress | 0x1a76572a | Thrown when the user requests to transfer more of a token than the capacity of the bucket. |
| TokenRateLimitReached | uint256 minWaitInSeconds uint256 available address tokenAddress | 0xd0c8d23a | Thrown when the user requests to transfer more of a token than currently available in the bucket. The user might have to wait at least |
ERC20
| Error | Description |
|---|---|
| ERC20: burn amount exceeds balance | Thrown when the amount to be burned exceeds the pool balance. |
| ERC20: transfer amount exceeds allowance | Thrown when the transfer amount exceeds the allowance. |
PriceRegistry
| Error | Parameters | Error Selector | Description |
|---|---|---|---|
| ChainNotSupported | uint64 chain | 0x2e59db3a | Thrown when a chain is not supported. |
| StaleGasPrice | uint64 destChainSelector uint256 threshold uint256 timePassed | 0xf08bcb3e | Thrown when the gas price is stale. |
| TokenNotSupported | address token | 0x06439c6b | Thrown when a token is not supported. |
| StaleTokenPrice | address token uint256 threshold uint256 timePassed | 0xc65fdfca | Thrown when the price of a token is stale. |