Ethereum account nonce errors explained as transaction sequencing tool

On Ethereum , the account nonce is a crucial mechanism for tracking the order of transactions sent from an externally owned account. This incrementing number serves as a sequence counter for each transaction, rather than acting as a password or a fee system. For contract accounts, the nonce reflects the number of contracts that the account has deployed. An externally owned account’s nonce functions as a sequential transaction counter. Every transaction sent from an Ethereum account has an associated nonce, beginning with zero and increasing by one with each new transaction.

Source: CoinTurk News