This operation is performed manually or semi-automatically within 10 to 180 minutes after the full transfer.
It takes 4 network transaction confirmations to fully transfer funds and fix the exchange rate.
BTC Core (1 confirmation) + MEXC exchange (3 confirmations)
If the exchange rate changes by 0.1% or more at the time of the 4th confirmation, the application is recalculated at the current exchange rate.