PROTOCOL FIELD TOOL / ETHEREUM
Find the gap in your nonce queue.
Map the next expected account nonce against transactions you enter. This is a local planning aid; nothing is read from or sent to a wallet.
Reading the map
A nonce is an account-level sequence number. Transactions from one account are ordered; a pending lower nonce can prevent later transactions from being processed in sequence. The simulator only compares numbers you provide. It cannot determine whether a transaction is valid, replaced, mined, dropped, or safe to resubmit.