Get the extension What is a nonce in a crypto transaction?
On Ethereum and EVM networks, the nonce is the sequence number of a transaction sent from an account: 0 for the first, then 1, 2 and so on. Each nonce can be used only once, and transactions are processed in order.
Why it matters
If one transaction is stuck, every later one waits behind it. The only way to replace it is to send another with the same nonce and a higher fee: the same transaction, faster (speed up), or a zero-value transfer to yourself (cancel).
How Locker Protocol Wallet handles it
Locker Protocol Wallet offers speed up and cancel on pending EVM transactions. The replacement is a new transaction with the same nonce, prepared by the extension and signed again on Locker Vault.
Questions
Why is my transaction stuck as pending?
Usually the fee was too low for current demand, or an earlier transaction with a lower nonce has not gone through yet.
Can I cancel a confirmed transaction?
No. Speed up and cancel only work while the transaction is pending. Once it is confirmed on the chain, it is final.