Requote

Requote - A broker’s response that the original quoted price has changed before execution. In instant execution systems, if the market moves beyond an allowed deviation, the broker sends a requote – essentially a new quote – and the trader (or robot) can accept or reject the updated price. In code, this may appear as an exception or special result. Requotes are avoided in pure market execution environments, where orders fill at the current price even if it differs from the price shown when the order was sent.