Error codes / 0x3
custom program error: 0x3
Custom(3) · 0x3 · used by 7 programs we know
This number has no meaning on its own. Each Solana program numbers its own errors, so 0x3 is ExpectedAccount in Raydium AMM V4 but MintMismatch in SPL Token. The meaning that applies is the one from the program that actually failed: the first Program … failed line in the transaction's logs. That is often not the program you called, but one it invoked, or a guard instruction your wallet added.
Don't guess: paste the transaction
TxWhy reads the logs, finds the program and the exact instruction that raised 0x3, explains it, and rebuilds the transaction when the cause is one it can fix.
What 0x3 means, by program
- ExpectedAccountRaydium AMM V4
The program raised this named error and published no further explanation.
- MintMismatchSPL Token
A token account belongs to a different mint than expected.
- Invalid account data lengthSystem Program
The requested account size is not allowed (too large, or not what the program expects).
- WrongCardProbabilityMetaplex NFT Packs
Wrong card probability value
- AlreadyInitializedMetaplex Token Metadata
Already initialized
- MarketAlreadyInitializedPhoenix
Market already initialized error
- InvalidOutputOwnerSPL Token Swap
Output pool account owner cannot be the program address