You will not be able to submit a withdrawal if it puts you over your current daily/monthly limit. The daily withdrawal limit works as a 24 hour sliding window. So all of the withdrawals from the past 24 hours are taken into account when calculating the limit. Monthly limits are based on a 30 day window.
If a withdrawal fails due to being over limit, you must either make a withdrawal that does not exceed your current limit, or wait until a previous withdrawal expires from the sliding window period.
You can check your current withdrawal limit under Funding > Withdraw > (Currency) > "Maximum withdrawal".
Withdrawal limits are a required part of our regulatory compliance measures.