This guide explains how to manually configure transaction parameters like nonce and gas limit when executing Safe Multisig transactions.
Important: Modifying the parameters described in this article directly affects transaction execution. Only proceed if you fully understand the implications.
Configuring Advanced Parameters
When reviewing a transaction, click on the "Estimated fee" section to expand and view all transaction details.
Clicking "Edit" allows you to modify values. Note that not all parameters can be changed at all times.
Understanding Advanced Parameters
Wallet Nonce
A nonce serves as a transaction identifier. The purpose of nonces ("number used only once") is to prevent replay attacks. The Wallet nonce parameter affects your connected signer wallet (such as MetaMask, Rabby, or Ledger) and determines which nonce should be used.
This nonce can only be configured when executing Safe Multisig transactions or performing on-chain confirmations—it cannot be modified during off-chain transactions.
Gas Limit
This represents the maximum gas units the signer wallet can consume to execute a transaction.
Max Priority Fee and Max Fee
These parameters relate to the EIP-1559 upgrade introduced in 2021, which established the concept of validator "tips." Validators are more likely to include a transaction in a block when users set a higher tip in their wallet.
- Max priority fee: The maximum tip (in gwei) paid for each gas unit of the transaction
- Max fee: The maximum total payment (in gwei) for each gas unit, including both the max priority fee and the base fee. The base fee is automatically calculated by the Ethereum blockchain based on network congestion