What the error means
Transaction too large
A Solana transaction must fit in 1,232 bytes, which is the IPv6 minimum packet size of 1,280 bytes minus 48 bytes of headers. Many accounts or instructions push it over.
| Where it comes from | Solana network limit |
| Code | 1,232-byte limit |
How to fix it
- Use a versioned transaction with an address lookup table to reference accounts by index.
- Split the action across several transactions, for example batch airdrops into groups.
- Remove optional instructions such as an extra priority fee instruction or memo.
If that is not it
- Some SDKs report this as an encoding or serialization error rather than "too large".
More fixes: how to decode any Solana error code and why Solana transactions fail.
Source
Error text and code from Solana transaction documentation, read on 24 October 2026.